STUSB1600
Datasheet
Standalone USB Type-CTM controller with high voltage protections
Features
•
•
•
•
QFN24L 4x4 mm
Type-C attach and cable orientation detection
Power role support: source / sink / DRP
Configurable start-up profiles
Integrated power switch for VCONN supply:
–
–
–
Programmable current limit up to 600 mA
Overcurrent, overvoltage and thermal protections
Undervoltage lockout
•
•
I2C interface and interrupt (optional connection to MCU)
Integrated VBUS voltage monitoring
•
Integrated VBUS and VCONN discharge path
•
•
•
•
Short-to-VBUS protection on CC pins (22 V) and VBUS pins (28 V)
Dead-battery mode support
Accessory mode support
High and/or low voltage power supply:
–
VSYS = [3.0 V; 5.5 V]
–
•
•
•
VDD = [4.1 V; 22 V]
ESD: 4 kV HBM - 1.5 kV CDM
Temperature range: -40 °C up to 105 °C
Certification test ID: 1000100
Product status link
STUSB1600
Device summary
Order code
STUSB1600AQTR
Description
Standalone USB TypeCTM controller with high
voltage protections
Package
QFN24 EP 4x4 mm
Marking
1600A
Applications
•
•
•
•
•
•
•
•
Smart plugs, wall adapters, chargers
Power hubs and docking stations
Smartphones and tablets
Gaming and PNDs
Displays
Wearable and Internet of Things (IoT)
Cameras, camcorders, MP3 players
Any Type-C source or sink device
Description
The STUSB1600 is an IC controller, fully compliant with the USB Type-C cable and
connector specification (rev. 1.2), which addresses 5 V USB Type-C port
management both on the host and/or device side. It is designed for a broad range of
applications and can handle the following USB Type-C functions: attach detection,
plug orientation detection, host to device connection, VCONN support, and VBUS
configuration. Thanks to its 20 V technology, it implements high voltage protection
features against short-circuits to VBUS up to 28 V. The device supports dead battery
mode and is fully customizable thanks to an integrated non-volatile memory.
DS11503 - Rev 4 - October 2019
For further information contact your local STMicroelectronics sales office.
www.st.com
STUSB1600
Functional description
1
Functional description
The STUSB1600 is a USB Type-C controller IC. It is designed to interface with the Type-C receptacle both on
host and/or device sides. It is used to establish and manage the source-to-sink connection between two USB
Type-C host and device ports.
The STUSB1600 major role is to:
1.
Detect the connection between two USB Type-C ports (attach detection)
2.
Establish a valid source-to-sink connection
3.
Determine the attached device mode: source, sink or accessory
4.
Resolve cable orientation and twist connections to establish USB data routing (MUX control)
5.
Configure and monitor VBUS power path
6.
Manage VBUS power capability: USB Default, Type-C medium or Type-C high current mode
7.
Configure VCONN when required
The STUSB1600 also provides:
1.
Low power standby mode
2.
Dead-battery mode
1.1
3.
I2C interface and interrupt (optional connection to MCU)
4.
5.
6.
Start-up configuration customization: static through NVM or/and dynamic through I2C
High voltage protection
Accessory modes detection
Block overview
Figure 1. Functional block diagram
VREG_1V2
VDD
VREG_1V2
VSYS GND
VREG_2V7
PowerSupply
Generation VREG_2V7
RESET
Power On
Reset
Controller
VPU I2C_REGx
Oscillator
NVM
I2C Interface
&
Registers
SCL
SDA
ALERT#
RESET
ATTACH
DEBUG1
I2C_REGx
CC1DB
VDD1V2
VPU
VDD2V7
RESET
CLK
I2C_REGx
VBUS_ERROR
CC1
VCONN
DEBUG2
VCONN Monitoring
& Power Switches
CC2
CC Lines
Interface
CC Control
Logic
VBUS Monitoring
& Control
VBUS_SENSE
VBUS_EN_SRC
VBUS_EN_SNK
A_B_SIDE
CC2_DB
High voltage pins
DS11503 - Rev 4
page 2/66
STUSB1600
Inputs / outputs
2
Inputs / outputs
2.1
Pinout
CC1
2
VCONN
3
CC2
4
CC2DB
RESET
24 23
20
VBUS_EN_SINK
22 21
VSYS
VBUS_EN_SRC
1
VREG_1V2
VDD
DS11503 - Rev 4
CC1DB
VREG_2V7
Figure 2. STUSB1600 pin connections
19
18
VBUS_SENSE
17
A_B_SIDE
16
NC
15
DEBUG2
5
14
DEBUG1
6
13
12
8
9
10
11
SCL
ALERT#
GND
VBUS_VALID
ADDR0
ATTACH
7
SDA
EP
page 3/66
STUSB1600
Pin list
2.2
Pin list
Table 1. Pin functions list
Pin
Name
Type
Description
Typical connection
1
CC1DB
HV AIO
Dead-battery enable on CC1 pin
CC1 pin if used or ground
2
CC1
HV AIO
Type-C configuration channel 1
Type-C receptacle A5
3
VCONN
PWR
Power input for active plug
5 V power source
4
CC2
HV AIO
Type-C Configuration Channel 2
Type-C receptacle B5
5
CC2DB
HV AIO
Dead-battery enable on CC2 pin
CC2 pin if used or ground
6
RESET
DI
Reset input (active high)
7
SCL
DI
I2C clock input
To I²C master, ext. pull-up
8
SDA
DI/OD
I2C data input/output – active low open-drain
To I²C master, ext. pull-up
I2C
To I²C master, ext. pull-up
9
ALERT#
OD
10
GND
GND
11
VBUS_VALID
12
Ground
Ground
OD
VBUS detection, active low open-drain
To MCU if any, ext. pull-up
ATTACH
OD
Attachment detection, active low open-drain
To MCU if any, ext. pull-up
13
ADDR0
DI
I²C device address setting (see Section 4 I²C
interface)
Static
14
DEBUG1
OD
Debug accessory device detection in sink power
role, active low open-drain
To MCU if any, ext. pull-up
15
DEBUG2
OD
Debug accessory device detection in source
power role, active low open-drain
To MCU if any, ext. pull-up
16
NC
-
-
Floating
17
A_B_SIDE
OD
Cable orientation, active low open-drain
USB SuperSpeed mux select – Ext. pullup
18
VBUS_SENSE
HV AI
VBUS voltage monitoring and discharge path
From VBUs
19
VBUS_EN_SNK
HV OD
VBUS sink power path enable, active low opendrain
To switch or power system, ext. pull-up
20
VBUS_EN_SRC
HV OD
VBUS source power path enable, active low
open-drain
To switch or power system, ext. pull-up
21
VREG_1V2
PWR
1.2 V internal regulator output
1 µF typ. decoupling capacitor
22
VSYS
PWR
Power supply from system
From power system, connect to ground
if not used
23
VREG_2V7
PWR
2.7 V internal regulator output
1 µF typ. decoupling capacitor
24
VDD
EP
DS11503 - Rev 4
interrupt – active low open-drain
HV PWR Power supply from USB power line
GND
Exposed pad is connected to ground
From VBUS
To ground
page 4/66
STUSB1600
Pin description
Table 2. Legend
Type
Description
D
Digital
A
Analog
O
Output pad
I
Input pad
IO
Bidirectional pad
OD
Open-drain output
PD
Pull-down
PU
Pull-up
HV
HIGH VOLTAGE
PWR
Power
GND
Ground
2.3
Pin description
2.3.1
CC1 / CC2
CC1 and CC2 are the configuration channel pins used for the connection and attachment detection, plug
orientation determination and system configuration management across USB Type-C cable.
2.3.2
CC1DB / CC2DB
CC1DB and CC2DB are used for dead-battery mode when the STUSB1600 is configured in sink power role or
dual power role. This mode is enabled by connecting CC1DB and CC2DB respectively to CC1 and CC2. Thanks
to this connection, the pull-down terminations on the CC pins are present by default even if the device is not
supplied (see Section 3.5 Dead-battery mode).
Note:
CC1DB and CC2DB must be connected to ground when the STUSB1600 is configured in source power role or
when the dead-battery mode is not supported.
2.3.3
VCONN
This power input is connected to a power source that can be a 5 V power supply, or a lithium battery. It is used to
provide power supply to the local plug. It is internally connected to power switches that are protected against
short-circuit and overvoltage. This does not require any protection on the input side. When a valid source-to-sink
connection is determined and VCONN power switches are enabled, VCONN is provided by the source to the unused
CC pin (see Section 3.3 VCONN supply).
2.3.4
RESET
Active high reset.
DS11503 - Rev 4
page 5/66
STUSB1600
Pin description
2.3.5
I²C interface pins
Table 3. I2C interface pin list
Name
2.3.6
Description
SCL
I²C clock, need external pull-up
SDA
I²C data, need external pull-up
ALERT#
I²C interrupt, need external pull-up
ADDR0
I²C device address bit (see Section 4 I²C interface)
GND
Ground.
2.3.7
VBUS_VALID
This pin is asserted during attachment when VBUS is detected on VBUS_SENSE pin and VBUS voltage is within
the valid operating range. The VBUS valid state is also advertised in a dedicated I2C register bit (see Section
5.1 Register description).
2.3.8
ATTACH
This pin is asserted when a valid source-to-sink connection is established. It is also asserted when a connection
to an accessory device is detected. The attachment state is also advertised in a dedicated I2C register bit (see
Section 5.1 Register description).
2.3.9
DEBUG pins
These pins are asserted when a debug accessory device is detected according to the running power role.
Table 4. Debug pin list
Name
Description
DEBUG1 Asserted when Type-C FSM is in DebugAccessory.SNK state in sink power role
DEBUG2
2.3.10
Asserted when Type-C FSM is in UnorientedDebugAccessory. SRC or OrientedDebugAccessory.SRC states in
source power role
A_B_SIDE
This output pin provides cable orientation. It is used to establish USB SuperSpeed signal routing. The cable
orientation is also advertised in a dedicated I2C register bit. (see Section 5.1 Register description). This signal is
not required in case of USB 2.0 support.
Table 5. USB data MUX select
2.3.11
Value
CC pin position
HiZ
CC1 pin is attached to CC line
0
CC2 pin is attached to CC line
VBUS_SENSE
This input pin is used to sense VBUS presence, monitor VBUS voltage and discharge VBUS on USB Type-C
receptacle side.
DS11503 - Rev 4
page 6/66
STUSB1600
Pin description
2.3.12
VBUS_EN_SNK
In sink power role, this pin allows the incoming VBUS power to be enabled when the connection to a source is
established and VBUS is in the valid operating range. The open-drain output allows a PMOS transistor to be driven
directly. The logic value of the pin is also advertised in a dedicated I2C register bit (see Section 5.1 Register
description).
2.3.13
VBUS_EN_SRC
In source power role, this pin allows the outgoing VBUS power to be enabled when the connection to a sink is
established and VBUS is in the valid operating range. The open-drain output allows a PMOS transistor to be driven
directly. The logic value of the pin is also advertised in a dedicated I2C register bit (see Section 5.1 Register
description).
2.3.14
VREG_1V2
This pin is used only for external decoupling of 1.2 V internal regulator. The recommended decoupling capacitor:
1 µF typ. (0.5 µF min.; 10 µF max.).
2.3.15
VSYS
This is the low power supply from the system, if any. It can be connected directly to a single cell lithium battery or
to the system power supply delivering 3.3 V or 5 V. It is recommended to connect the pin to ground when it is not
used.
2.3.16
VREG_2V7
This pin is used only for external decoupling of 2.7 V internal regulator. The recommended decoupling capacitor:
1 µF typ. (0.5 µF min.; 10 µF max.).
2.3.17
VDD
This is the main power supply for applications powered by VBUS.
In source power role, this pin can be used to sense the voltage level of the main power supply providing VBUS. It
allows UVLO and OVLO thresholds to be considered independently on VDD pin as additional conditions to enable
the VBUS power path through VBUS_EN_SRC pin (see Section 3.2.3 VBUS power path assertion). When UVLO
threshold detection is enabled, the VDD pin must be connected to the main power supply to establish the
connection and to assert the VBUS power path.
DS11503 - Rev 4
page 7/66
STUSB1600
Features description
3
Features description
3.1
CC interface
The STUSB1600 controls the connection to the configuration channel (CC) pins, CC1 and CC2, through two main
blocks, the CC lines interface block and the CC control logic block.
The CC line interface block is used to:
•
Configure the termination mode on the CC pins relative to the power mode supported, i.e. pull-up for source
power role and pull-down for sink power role
•
Monitor the CC pin voltage values relative to the attachment detection thresholds
•
Configure VCONN on the unconnected CC pin when required
•
Protect the CC pins against overvoltage
The CC control logic block is used to:
•
Execute the Type-C FSM relative to the Type-C power mode supported
•
Determine the electrical state for each CC pin relative to the detected thresholds
•
Evaluate the conditions relative to the CC pin states and VBUS voltage value to transition from one state to
another in the Type-C FSM
•
Detect and establish a valid source-to-sink connection
•
Determine the attached device mode: source, sink or accessory
•
Determine cable orientation to allow external routing of the USB data
•
Manage VBUS power capability: USB default, Type-C medium or Type-C high current mode
•
Handle hardware faults
The CC control logic block implements the Type-C FSMs corresponding to the following Type-C power modes:
•
Source power role with accessory support
•
Sink power role with accessory support
•
Sink power role without accessory support
•
Dual power role with accessory support
•
Dual power role with accessory and Try.SRC support
•
Dual power role with accessory and Try.SNK support
The default Type-C power mode is selected through NVM programming (see Section 6 Start-up configuration)
and can be changed by software during operation through I2C interface (see Section 5.1 Register description).
3.2
VBUS power path control
3.2.1
VBUS monitoring
The VBUS monitoring block supervises (from the VBUS_SENSE pin) the VBUS voltage on the USB Type-C
receptacle side.
It is used to check that VBUS is within a valid voltage range:
•
•
To establish a valid source-to-sink connection according to USB Type-C standard specifications
To enable safely the VBUS power path through VBUS_EN_SRC pin or VBUS_EN_SNK pin depending on the
power role
It allows detection of unexpected VBUS voltage conditions such as: undervoltage or overvoltage relative to the
valid VBUS voltage range. When such conditions occurs, the STUSB1600 behaves as follows:
•
DS11503 - Rev 4
At attachment, it prevents the source-to-sink connection and the VBUS power path assertion
page 8/66
STUSB1600
VBUS power path control
•
After attachment, it deactivates the source-to-sink connection and disables the VBUS power path. In source
power role, the device goes into error recovery state. In sink power role the device goes into unattached
state
The valid VBUS voltage range is defined from VBUS nominal voltage by a high threshold voltage and a low
threshold voltage whose nominal values are respectively VBUS+5% and VBUS-5%. The nominal threshold limits
can be shifted by a fraction of VBUS from +1% to +15% for the high threshold voltage and from -1% to -15% for
the low threshold voltage. It means the threshold limits can vary from VBUS+5% to VBUS+20% for the high limit
and from VBUS-5% to VBUS-20% for the low limit.
The threshold limits are preset by default in the NVM with different shift coefficients depending on whether the
device operates in source power role or sink power role (see Section 8.3 Electrical and timing characteristics).
The threshold limits can be changed independently through NVM programming (see Section 6 Start-up
configuration) and also by software during attachment through I2C interface (see Section 5.1 Section 4.4:
Register description).
3.2.2
VBUS discharge
The monitoring block handles also the internal VBUS discharge path connected to the VBUS_SENSE pin. The
discharge path is activated at detachment, or when the device goes into the error recovery state whatever the
power role (see Section 3.7 Hardware fault management).
The VBUS discharge path is enabled by default in the NVM and can be disabled through NVM programming only
(see Section 6 Start-up configuration). The discharge time duration is also preset by default in the NVM (see
Section 8.3 Electrical and timing characteristics). The discharge time duration can be modified through NVM
programming (see Section 6 Start-up configuration) and also by software through the I2C interface (see Section
5.1 Register description).
3.2.3
VBUS power path assertion
The STUSB1600 can control the assertion of the VBUS power path on USB Type-C port, directly or indirectly,
through VBUS_EN_SRC pin and VBUS_EN_SNK pins according to the system power role.
The following tables summarize the configurations of the STUSB1600 and the operation conditions that determine
the electrical value of VBUS_EN_SRC pin and VBUS_EN_SNK pins during the system operation.
DS11503 - Rev 4
page 9/66
STUSB1600
VBUS power path control
Table 6. Conditions for VBUS power path assertion in source power role
Electrical
value
Pin
0
Operation conditions
Type-C attached state
VDD pin monitoring
Attached.SRC
VDD > VDDUVLO
or
if UVLO threshold
detection enabled
UnorientedDebug
Accessory.SRC
and/or
VBUS_SENSE
pin monitoring
VBUS <
VMONUSBH and
VBUS >
VMONUSBL if
VBUSvoltage
range detection
enabled
or
VDD < VDDOVLO
or
OrientedDebug
Accessory.SRC
if OVLO threshold
detection enabled
VBUS > VTHUSB
if VBUS voltage
range detection
disabled
VBUS_EN_SRC
Comment
The signal is asserted only if all
the valid operation conditions are
met
VBUS >
VMONUSBH or
VDD VDDOVLO
if OVLO threshold
detection enabled
VBUS <
VMONUSBL if
VBUS voltage
range detection
enabled
The signal is de-asserted when at
least one non-valid operation
condition is met
or
VBUS < VTHUSB
if VBUS voltage
range detection
disabled
As specified in the USB Type-C standard specification, the attached state "Attached.SRC" is reached only if the
voltage on VBUS receptacle side is at vSafe0V condition when a connection is detected.
DS11503 - Rev 4
page 10/66
STUSB1600
VCONN supply
Table 7. Conditions for VBUS power path assertion in sink power role
Electrical
value
Pin
Operation conditions
Type-C attached
state
VDD pin
monitoring
Attached.SNK
or
0
Not applicable
DebugAccessory.
SNK
VBUS_SENSE pin
monitoring
VBUS < VMONUSBH
and VBUS >
VMONUSBL if VBUS
voltage range
detection enabled
or
Comment
The signal is asserted only if all the
valid operation conditions are met
VBUS > VTHUSB if
VBUS voltage range
detection disabled
VBUS_EN_SNK
VBUS > VMONUSBH
or
HiZ
Any other state
Not applicable
VBUS < VMONUSBL if
VBUS voltage range
detection enabled
or
The signal is de-asserted when at
least one non-valid operation
condition is met
VBUS < VTHUSB if
VBUS voltage range
detection disabled
"Type-C attached state” refers to the Type-C FSM states as defined in the USB Type-C standard specification and
as described in I2C register CC_OPERATION_STATUS (see Section 5.1 Register description).
“VDD pin monitoring” is valid in source power role only. The activation of the UVLO and OVLO threshold
detections can be done through NVM programming (see Section 6 Start-up configuration) and also by software
through I2C interface (see Section 5.1 Register description). When UVLO and/or OVLO threshold detection is
activated, VBUS_EN_SRC pin is asserted only if the device is attached and the valid threshold conditions on VDD
are met. Once VBUS_EN_SRC pin is asserted, the VBUS monitoring is done on VBUS_SENSE pin instead of
VDD pin.
“VBUS_SENSE pin monitoring” relies by default on the valid VBUS voltage range defined by a high limit
VMONUSBH and a low limit VMONUSBL. The voltage range conditions can be disabled to consider UVLO threshold
detection instead. The monitoring conditions of VBUS voltage can be changed through NVM programming (see
Section 6 Start-up configuration) and also by software through I2C interface (see Section 5.1 Register
description).
See Section 8.3 Electrical and timing characteristics for the threshold voltage description and value on VDD and
VBUS_SENSE pins.
3.3
VCONN supply
3.3.1
VCONN input voltage
VCONN is a regulated supply used to power circuits in the plug of USB3.1 full-featured cables and other
accessories. VCONN nominal operating voltage is 5.0 V ± 5%.
3.3.2
VCONN application conditions
The VCONN pin of the STUSB1600 is connected to each CC pin (CC1 and CC2) across independent power
switches.
The STUSB1600 applies VCONN only to the CC pin not connected to the CC wire when all below conditions are
met:
DS11503 - Rev 4
page 11/66
STUSB1600
VCONN supply
•
•
The device is configured in source power role or dual power role
VCONN power switches are enabled
•
•
•
A valid connection to a sink is achieved
Ra presence is detected on the unwired CC pin
A valid power source is applied on VCONN pin with respect to a predefined UVLO threshold
The STUSB1600 does not provide VCONN when it works in sink power role.
3.3.3
VCONN monitoring
The VCONN monitoring block detects if VCONN power supply is available on the VCONN pin. It is used to check
that VCONN voltage is above a predefined undervoltage lockout (UVLO) threshold to allow VCONN power switches
to be enabled.
The default value of the UVLO threshold is 4.65 V typical for powered cables operating at 5 V. It can be changed
by software to 2.65 V typical to support VCONN-powered accessories that are operating down to 2.7 V (see
Section 5.1 Register description).
3.3.4
VCONN discharge
The behavior of Type-C FSMs is extended with an internal VCONN discharge path capability on CC pins in source
power mode only. The discharge path is activated during 250 ms from sink detachment detection. This feature is
disabled by default and can be activated through NVM programming (see Section 6 Start-up configuration) and
also by software through I2C interface (see Section 5.1 Register description).
3.3.5
VCONN control and status
The supplying conditions of VCONN across the STUSB1600 are managed through the I2C interface. Different I2C
registers and bits are used specifically for this purpose (see Section 5.1 Register description).
3.3.6
VCONN power switches
Features
The STUSB1600 integrates two current limited high-side power switches with protections that tolerate high
voltage up to 22 V on the CC pins.
Each VCONN power switch presents the following features:
•
•
•
•
•
•
DS11503 - Rev 4
Soft-start to limit inrush current
Constant current mode overcurrent protection
Adjustable current limit
Thermal protection
Undervoltage and overvoltage protection
Reverse current and reverse voltage protections
page 12/66
STUSB1600
VCONN supply
Figure 3. VCONN to CC1 and CC2 power switch protections
Current limit programming
The current limit can be set within the range 100 mA to 600 mA by step of 50 mA. The default current limit is
programmed through NVM programming (see Section 6 Start-up configuration) and can be changed by software
through I2C interface (see Section 5.1 Register description). At power-on or after a reset, the current limit takes
the default value preset in the NVM.
Fault management
The table below summarizes the different fault conditions that could occur during the operation of the switch and
the associated responses. An I2C alert is generated when a fault condition happens (see Section 5.1 Register
description).
Table 8. Fault management conditions
DS11503 - Rev 4
Fault types
Fault conditions
Expected actions
Short-circuit
CC output pin shorted to ground via
very low resistive path causing rapid
current surge
Power switch limits the current and reduces the output voltage. I2C
alert is asserted immediately thanks to VCONN_SW_OCP_FAULT
bits
Overcurrent
CC output pin connected to a load
that sinks current above
programmed limit
Power switch limits the current and reduces the output voltage. I2C
alert is asserted immediately thanks to VCONN_SW_OCP_FAULT
bits
Overheating
Junction temperature exceeding 145
°C due to any reason
Power switch is disabled immediately until the temperature falls
below 145 ° minus hysteresis of 15 °C. I2C alert is asserted
immediately thanks to THERMAL_FAULT bit. The STUSB1600 goes
into transient error recovery state
Undervoltage
VCONN input voltage drops below
UVLO threshold minus hysteresis
Power switch is disabled immediately until the input voltage rises
above the UVLO threshold. I2C alert is asserted immediately thanks
to VCONN_PRESENCE bit
page 13/66
STUSB1600
Low power standby mode
Fault types
Fault conditions
Expected actions
Overvoltage
CC output pin voltage exceeds
maximum operating limit of 6.0 V
Power switch is opened immediately until the voltage falls below the
voltage limit. I2C alert is asserted immediately thanks to
VCONN_SW_OVP_FAULT bits
CC output pin voltage exceeds
Reverse current VCONN input voltage when the power
switch is turned off
Reverse voltage
3.4
CC output pin voltage exceeds
VCONN input voltage of more than
0.35 V for 5 V when the power
switch is turned on
The reverse biased body diode of the back-to-back MOS switches is
naturally disabled preventing current to flow from the CC output pin
to the input
Power switch is opened immediately until the voltage difference falls
below the voltage limit. I2C alert is asserted immediately thanks to
VCONN_SW_RVP_FAULT bits
Low power standby mode
The STUSB1600 proposes a standby mode to reduce the device power consumption when no device is
connected to the USB Type-C port. It is disabled by default and can be activated through NVM programming (see
Section 6 Start-up configuration).
When activated, the STUSB1600 enters standby mode at power-up, or after a reset, after a reset or after a
disconnection. In this mode, the CC interface and the voltages monitoring blocks are turned off. Only a monitoring
circuitry is maintained active on the CC pins to detect a connection. When the connection is detected, all the
internal circuits are turned on to allow normal operations.
The standby mode does not operate when the device is configured in sink power role with accessory support (see
Section 6 Start-up configuration).
3.5
Dead-battery mode
The dead-battery mode allows systems powered by a battery to be supplied by VBUS when the battery is
discharged and to start the battery charging process. It is also used in systems that are powered through VBUS
only.
This mode is only supported in sink power role and dual power role configurations. It operates only if the CC1DB
and CC2DB pins are connected respectively to the CC1 and CC2 pins. Thanks to these connections, the
STUSB1600 presents a pull-down termination on its CC pins and advertises itself as a sink even if the device is
not supplied.
When a source system connects to a USB Type-C port with the STUSB1600 configured in dead-battery mode, it
can detect the pull-down termination, establish the source-to-sink connection, and provide the VBUS. The
STUSB1600 is then supplied thanks to the VDD pin connected to the VBUS on the USB Type-C receptacle side.
The STUSB1600 can finalize the source-to-sink connection and enable the power path on the VBUS thanks to the
VBUS_EN_SNK pin which allows the system to be powered.
3.6
High voltage protection
The STUSB1600 can be used safely in systems or connected to systems that handle high voltage on the VBUS
power path. The device integrates an internal circuitry on the CC pins that tolerates high voltages and ensures a
protection up to 22 V in case of unexpected short-circuit with VBUS or in case of connection to a device supplying
high voltage on VBUS.
3.7
Hardware fault management
The STUSB1600 handles hardware fault conditions related to the device itself and to the VBUS power path during
the system operation.
When such conditions happens, the circuit goes into a transient error recovery state named ErrorRecovery in the
Type-C FSM. The error recovery state is sufficient to force a detach event.
When entering this state, the device de-asserts the VBUS power path by disabling VBUS_EN_SRC pin and
VBUS_EN_SNK pin, and it removes the terminations from the CC pins during few tens of milliseconds. Then it
transits to the unattached state related to the configured power mode.
The STUSB1600 goes into error recovery state when at least one condition listed below is met:
DS11503 - Rev 4
page 14/66
STUSB1600
Accessory mode detection
•
•
Whatever the power role:
–
If an overtemperature is detected, the "THERMAL_FAULT" bit set to 1b
In source power role only:
–
If an internal pull-up voltage on CC pins is below UVLO threshold (VPU_VALID bit set to 0b)
–
If an overvoltage is detected on the CC pins (VPU_OVP_FAULT bit set to 1b)
–
If VBUS voltage is out of the valid voltage range during attachment (VBUS_VALID bit set to 0b)
–
If an undervoltage is detected on VDD pin during attachment when UVLO detection is enabled
(VDD_UVLO_DISABLE bit set to 0b)
If an overvoltage is detected on VDD pin during attachment when OVLO detection is enabled
(VDD_OVLO_DISABLE bit set to 0b)
–
The I2C register bits above-mentioned give either the state of the hardware fault when it occurs, or the setting
conditions to detect the hardware fault (see Section 5.1 Register description).
3.8
Accessory mode detection
The STUSB1600 supports the detection of audio accessory mode and debug accessory mode as defined in USB
Type-C standard specification with the following Type-C power modes (see Section 6 Start-up configuration):
•
Source power role with accessory support
•
Sink power role with accessory support
•
Dual power role with accessory support
•
Dual power role with accessory and Try.SRC support
•
Dual power role with accessory and Try.SNK support
3.8.1
Audio accessory mode detection
The STUSB1600 detects an audio accessory device when both CC1 and CC2 pins are pulled down to ground by
Ra resistor from the connected device. The audio accessory detection is advertised through
CC_ATTACHED_MODE bits of I2C register CC_CONNECTION_STATUS (see Section 5.1 Register description).
3.8.2
Debug accessory mode detection
The STUSB1600 detects a connection to a debug and test system (DTS) when it operates either in sink power
role or in source power role. The debug accessory detection is advertised by DEBUG1 and DEBUG2 pins as well
as through CC_ATTACHED_MODE bits of I2C register CC_CONNECTION_STATUS (see Section 5.1 Register
description).
In sink power role, a debug accessory device is detected when both CC1 and CC2 pins are pulled up by Rp
resistor from the connected device. The voltage levels on CC1 and CC2 pins give the orientation and the current
capability as described in the table below. DEBUG1 pin is asserted to advertise the DTS detection and A_B_SIDE
pin indicates the orientation of the connection. The current capability of the DTS is given through
SINK_POWER_STATE bits of I2C register CC_OPERATION_STATUS (see Section 5.1 Register description).
Table 9. Orientation and current capability detection in sink power role
CC2
(CC2)
(CC1)
Charging current
configuration
1
Rp 3A
Rp 1.5 A
Default
HiZ (0)
PowerDefault.SNK (source supplies default USB
current)
2
Rp 1.5 A
Rp default
1.5 A
HiZ (0)
Power1.5.SNK (source supplies 1.5 A USB Type-C
current)
3
Rp 3 A
Rp default
3.0 A
HiZ (0)
Power3.0.SNK (source supplies 3.0 A USB Type-C
current)
Rp
Rp
Default
HiZ (HiZ)
PowerDefault.SNK (source supplies default USB
current)
#
4
DS11503 - Rev 4
A_B_SIDE pin
CC1
def/1.5 A/3 A def/1.5 A/3 A
CC1/CC2
(CC2/CC1)
Current capability state
SINK_POWER_STATE bit values
page 15/66
STUSB1600
Accessory mode detection
In source power role, a debug accessory device is detected when both CC1 and CC2 pins are pulled down to
ground by Rd resistor from the connected device. The orientation detection is performed in two steps as
described in the table below. DEBUG2 pin is asserted to advertise the DTS detection and the A_B_SIDE pin
indicates the orientation of the connection. The orientation detection is advertised through TYPEC_FSM_STATE
bits of I2C register CC_OPERATION_STATUS (see Section 5.1 Register description).
Table 10. Orientation detection in source power role
A_B_SIDE pin
#
CC1
(CC2)
CC2
(CC1)
Detection process
CC1/CC2
(CC2/CC1)
1
Rd
Rd
2
Rd
≤Ra
1st step: debug accessory mode detected
Orientation detection state
TYPEC_FSM_STATE bit value
HiZ (HiZ)
UnorientedDebugAccessory.SRC
HiZ (0)
OrientedDebugAccessory.SRC
2nd step: orientation detected (DTS
DS11503 - Rev 4
presents a resistance to GND with a value
≤Ra on its CC2 pin)
page 16/66
STUSB1600
I²C interface
4
I²C interface
4.1
Read and write operations
The I²C interface is used to configure, control and read the operation status of the device. It is compatible with the
Philips I²C Bus® (version 2.1). The I²C is a slave serial interface based on two signals:
•
SCL - serial clock line: input clock used to shift data
•
SDA - serial data line: input/output bidirectional data transfers
A filter rejects the potential spikes on the bus data line to preserve data integrity.
The bidirectional data line supports transfers up to 400 kbit/s (fast mode). The data are shifted to and from the
chip on the SDA line, MSB first.
The first bit must be high (START) followed by the 7-bit device address and the read/write control bit.
Two 7-bit device address are available for the STUSB1600 thanks to the external programming of DevADDR0
through ADDR0 pin setting, i.e. 0x28 or 0x29. It allows two STUSB1600 devices to be connected on the same I2C
bus.
Table 11. Device address format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
DevADDR6
DevADDR5
DevADDR4
DevADDR3
DevADDR2
DevADDR1
DevADDR0
R/W
0
1
0
1
0
0
ADDR0
0/1
Table 12. Register address format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
RegADDR7
RegADDR6
RegADDR5
RegADDR4
RegADDR3
RegADDR2
RegADDR1
RegADDR0
Table 13. Register data format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
Figure 4. Read operation
Slave
Master
Start
Device addr
7 bits
W A
Reg address
8 bits
Start bit = SDA falling when SCL = 1
Stop bit = SDA rising when SCL = 1
Restart bit = start after a start
Acknowledg e = SDA forced low during a SCL clock
DS11503 - Rev 4
A Restart
Device addr
7 bits
R
A
Reg data
8 bits
A
Reg data
8 bits
Address
n+1
A
Reg data
8 bits
A
Stop
Address
n+2
page 17/66
STUSB1600
Timing specifications
Figure 5. Write operation
Start
Device addr
7 bits
W A
Reg address
8 bits
A Reg data
8 bits
A
Start bit = SD A fa lling when S CL = 1
Stop bit = SD A rising when SCL = 1
Restart bit = start after a start
4.2
Reg data
8 bits
A
Reg data
8 bits
A
Stop
Address
n+2
Address
n+1
Timing specifications
The device uses a standard slave I²C channel at speed up to 400 kHz.
Table 14. I²C timing parameters - VDD = 5 V
Symbol
Min.
Typ.
Max.
Unit
0
-
400
kHz
Hold time (repeated) START condition
0.6
-
-
μs
tlow
LOW period of the SCL clock
1.3
-
-
μs
thigh
HIGH period of the SCL clock
0.6
-
-
μs
tsu,dat
Set-up time for repeated START condition
0.6
-
-
μs
thd,dat
Data hold time
0.04
-
0.9
μs
tsu,dat
Data set-up time
100
-
-
μs
Fscl
thd,sta
Parameter
SCL clock frequency
tr
Rise time of both SDA and SCL signals
20 + 0.1 Cb
-
300
ns
tf
Fall time of both SDA and SCL signals
20 + 0.1 Cb
-
300
ns
Set-up time for STOP condition
0.6
-
-
μs
tbuf
Bus free time between a STOP and START condition
1.3
-
-
μs
Cb
Capacitive load for each bus line
-
-
400
pF
tsu,sto
DS11503 - Rev 4
page 18/66
STUSB1600
Timing specifications
Figure 6. I²C timing diagram
V ih
S DA
tf
V il
thd,s ta
tr
ts u,dat thig h
SC L
tlow
DS11503 - Rev 4
thd,dat
ts u,sta
page 19/66
STUSB1600
I2C register map
5
I2C register map
Table 15. Register access legend
Access code
Expanded name
Description
RO
Read only
Register can be read only
R/W
Read /write
Register can be read or written
RC
Read and clear
Register can be read and is cleared after read
Table 16. STUSB1600 register map overview
DS11503 - Rev 4
Address
Register name
Access
Description
00h to 0Ah
Reserved
RO
Do not use
0Bh
ALERT_STATUS
RC
Alert register linked to transition
registers
0Ch
ALERT_STATUS_MASK_CTRL
R/W
Allows the interrupt mask on
ALERT_STATUS register to be
changed
0Dh
CC_CONNECTION_STATUS_TRANS
RC
Alerts about transition in
CC_CONNECTION_STATUS
register
0Eh
CC_CONNECTION_STATUS
RO
Gives status on CC connection
0Fh
MONITORING_STATUS_TRANS
RC
Alerts about transition in
MONITORING_STATUS register
10h
MONITORING_STATUS
RO
Gives status on VBUS and VCONN
voltage monitoring
11h
CC_OPERATION_STATUS
RO
Gives status on CC operation modes
12h
HW_FAULT_STATUS_TRANS
RC
Alerts about transition in
HW_FAULT_STATUS register
13h
HW_FAULT_STATUS
RO
Gives status on hardware faults
14h to 17h
Reserved
RO
Do not use
18h
CC_CAPABILITY_CTRL
R/W
Allows the CC capabilities to be
changed
19h to 1Dh
Reserved
RO
Do not use
1Eh
CC_VCONN_SWITCH_CTRL
R/W
Allows the current limit of VCONN
power switches to be changed
1Fh
Reserved
RO
Do not use
20h
VCONN_MONITORING_CTRL
R/W
Allows the monitoring conditions of
VCONN voltage to be changed
21h
Reserved
RO
Do not use
22h
VBUS_MONITORING_RANGE_CTRL
R/W
Allows the voltage range for VBUS
monitoring to be changed
23h
RESET_CTRL
R/W
Controls the device reset by
software
24h
Reserved
RO
Do not use
25h
VBUS_DISCHARGE_TIME_CTRL
R/W
Allows the VBUS discharge time to
be changed
page 20/66
STUSB1600
Register description
5.1
Address
Register name
Access
Description
26h
VBUS_DISCHARGE_STATUS
RO
Gives status on VBUS discharge path
activation
27h
VBUS_ENABLE_STATUS
RO
Gives status on VBUS power path
activation
28h
CC_POWER_MODE_CTRL
R/W
Allows the CC power mode to be
changed
29h to 2Dh
Reserved
RO
Do not use
2Eh
VBUS_MONITORING_CTRL
R/W
Allows the monitoring conditions of
VBUS voltage to be changed
2Fh
Reserved
RO
Do not use
Register description
The reset column specified in the register descriptions below defines the default value of the registers at power-up
or after a reset. The reset values with (NVM) index correspond to the user-defined parameters that can be
customized by NVM re-programming if needed (see Section 6 Start-up configuration).
5.1.1
ALERT_STATUS
Address: 0Bh
Access: RC
Note:
This register indicates an alert that has occurred.
Table 17. ALERT_STATUS register
Bit
Field name
Reset
7
Reserved
0b
6
CC_CONNECTION_STATUS_AL
0b
5
MONITORING_STATUS_AL
0b
4
HW_FAULT_STATUS_AL
0b
3:0
Reserved
0000b
Description
Do not use
0b: cleared
1b: change occurred on
CC_CONNECTION_STATUS_TRANS register
0b: cleared
1b: change occurred on MONITORING_STATUS_TRANS
register
0b: cleared
1b: change occurred on HW_FAULT_STATUS_TRANS
register
Do not use
When a bit value change occurs on one of the mentioned transition registers, it automatically sets the
corresponding alert bit in ALERT_STATUS register.
5.1.2
ALERT_STATUS_MASK_CTRL
Address: 0Ch
Access: R/W
Note:
DS11503 - Rev 4
This register is used to mask event interrupt and prevent the assertion of the alert bit in the ALERT_STATUS
register when the corresponding bit defined below is set to 1.
page 21/66
STUSB1600
Register description
Table 18. ALERT_STATUS_MASK_CTRL register
Bit
Field Name
Reset
7
Reserved
1b
6
CC_CONNECTION_STATUS_AL_MASK
1b (NVM)
5
MONITORING_STATUS_AL_MASK
1b (NVM)
4
HW_FAULT_STATUS_AL_MASK
1b (NVM)
3:0
Reserved
1111b
Description
Do not use
0b: interrupt unmasked
1b: interrupt masked
0b: interrupt unmasked
1b: interrupt masked
0b: interrupt unmasked
1b: interrupt masked
Do not use
The condition to generate an active-low ALERT signal is:
[ALERT_STATUS bitwise AND (NOT ALERT_STATUS_MASK)] 0
5.1.3
CC_CONNECTION_STATUS_TRANS
Address: 0Dh
Access: RC
Note:
This register indicates a bit value change has occurred in CC_CONNECTION_STATUS register.
Table 19. CC_CONNECTION_STATUS_TRANS register
DS11503 - Rev 4
Bit
Field name
Reset
7:1
Reserved
0000000b
0
CC_ATTACH_TRANS
0b
Description
Do not use
0b: cleared
1b: transition occurred on CC_ATTACH bit
page 22/66
STUSB1600
Register description
5.1.4
CC_CONNECTION_STATUS
Address: 0Eh
Access: RO
Note:
This register gives the connection state of the CC pins and on associated operating modes of the device.
Table 20. CC_CONNECTION_STATUS register
Bit
Field name
Reset
Description
000b: no device attached
001b: sink attached
010b: source attached
7:5
CC_ATTACHED_MODE
000b
011b: debug accessory attached
100b: audio accessory attached
101b: do not use
110b: do not use
111b: do not use
4
DEVICE_POWER_MODE
0b(NVM)
3
CC_POWER_ROLE
0b
2
Reserved
0b
1
CC_VCONN_SUPPLY
0b
0
CC_ATTACH
0b
0b: operating in normal power mode
1b: operating in standby power mode
0b: operating as a sink
1b: operating as a source
Do not use
0b: VCONN is not supplied on CC pin
1b: VCONN is supplied on CC pin
0b: not attached
1b: attached
The DEVICE_POWER_MODE bit indicates the power consumption mode of the device at start-up and during
operation:
•
In normal mode, all the internal circuits are turned on
•
In standby mode the CC interface and the voltage monitoring blocks remain off until a connection is detected
The standby mode power is disabled by default and can be activated through NVM programming (see Section
6 Start-up configuration).
The CC_POWER_ROLE bit is relevant only when a connection is established and the device is attached.
DS11503 - Rev 4
page 23/66
STUSB1600
Register description
5.1.5
MONITORING_STATUS_TRANS
Address: 0Fh
Access: RC
Note:
This register indicates a bit value change has occurred in MONITORING_STATUS register.
Table 21. MONITORING_STATUS_TRANS register
5.1.6
Bit
Field name
Reset
7:4
Reserved
0000b
3
VBUS_VALID_TRANS
0b
2
VBUS_VSAFE0V_TRANS
0b
1
VBUS_PRESENCE_TRANS
0b
0
VCONN_PRESENCE_TRANS
0b
Description
Do not use
0b: cleared
1b: transition occured on VBUS_VALID bit
0b: cleared
1b: transition occured on VBUS_VSAFE0V bit
0b: cleared
1b: transition occured on VBUS_PRESENCE bit
0b: cleared
1b: transition occured on VCONN_PRESENCE bit
MONITORING_STATUS
Address: 10h
Access: RO
Note:
This register gives the current status of VBUS and VCONN voltage monitoring done respectively on
VBUS_SENSE pin and VCONN pin.
Table 22. MONITORING_STATUS register
Bit
Field name
Reset
7:4
Reserved
0000b
3
VBUS_VALID
0b
2
VBUS_VSAFE0V
1b
1
VBUS_PRESENCE
0b
0
VCONN_PRESENCE
0b or 1b
Description
Do not use
0b: VBUS is outside valid VBUS voltage range
1b: VBUS is within valid VBUS voltage range
0b: VBUS is above VBUS VSafe0V threshold
1b: VBUS is below VBUS VSafe0V threshold
0b: VBUS is below VBUS UVLO threshold
1b: VBUS is above VBUS UVLO threshold
0b: VCONN is below VCONN UVLO threshold
1b: VCONN is above VCONN UVLO threshold
The default value of valid VBUS voltage range can be changed in VBUS_MONITORING_RANGE_CTRL register
during the operation.
VBUS vSafe0V threshold is defined in VBUS_MONITORING_CTRL register. It is used in source power role as a
Type-C FSM condition to establish a valid device attachment.
VBUS UVLO threshold is set by hardware.
VCONN UVLO threshold is defined in VCONN_MONITORING_CTRL register.
DS11503 - Rev 4
page 24/66
STUSB1600
Register description
The reset value of VCONN_PRESENCE bit is:
•
0b when VCONN is not supplied on VCONN pin, or when VCONN is supplied and voltage level is below UVLO
threshold, or when VCONN threshold detection circuit is disabled.
•
1b when VCONN is supplied on VCONN pin and the voltage level is above UVLO threshold.
See Section 8.3 Electrical and timing characteristics for the threshold voltage description and value on
VBUS_SENSE and VCONN pins.
DS11503 - Rev 4
page 25/66
STUSB1600
Register description
5.1.7
CC_OPERATION_STATUS
Address: 11h
Access: RO
Note:
This register gives the current status of the device operating modes with respect to the Type-C FSM states as
defined in the USB Type-C standard specification. This status is informative only and is not used to trigger any
alert.
Table 23. CC_OPERATION_STATUS register
Bit
Field name
Reset
7
CC_PIN_ATTACHED
0b
Description
0b: CC1 is attached
1b: CC2 is attached
00b: PowerDefault.SNK (source supplies default USB current)
6:5
SINK_POWER_STATE
00b
01b: Power1.5.SNK (source supplies 1.5 A USB Type-C
current)
10b: Power3.0.SNK (source supplies 3.0 A USB Type-C
current)
11b: do not use
DS11503 - Rev 4
page 26/66
STUSB1600
Register description
Bit
Field name
Reset
Description
00h: Unattached.SNK
01h: AttachWait.SNK
02h: Attached.SNK
03h: DebugAccessory.SNK
04h: reserved
05h: reserved
06h: reserved
07h: TryWait.SNK
08h: Unattached.SRC
09h: AttachWait.SRC
0Ah: Attached.SRC
0Bh: reserved
0Ch: Try.SRC
0Dh: Unattached.Accessory
0Eh: AttachWait.Accessory
00h
4:0
TYPEC_FSM_STATE
or
08h
0Fh: AudioAccessory
10h: UnorientedDebugAccessory.SRC
11h: reserved
12h: reserved
13h: ErrorRecovery
14h: TryDebounce.SNK (intermediate state towards Try.SNK
state)
15h: Try.SNK
16h: reserved
17h: TryWait.SRC
18h: UnattachedWait.SRC (VCONN intermediate discharge
state)
19h: OrientedDebugAccessory.SRC
1Ah: reserved
1Bh: reserved
1Ch: reserved
1Dh: reserved
1Eh: reserved
1Fh: reserved
The reset value of TYPEC_FSM_STATE bits is:
•
00h when device operates in sink power role (Unattached.SNK)
•
08h when device operates in source power role (Unattached.SRC)
The CC_PIN_ATTACHED bit indicates which CC pin is connected to the CC line. Its value is consistent with the
logic level of the A_B_SIDE output pin providing cable orientation.
The SINK_POWER_STATE bits indicate the current level advertised by the source that the sink can consume
when the device works in sink power role.
The TYPEC_FSM_STATE bits indicate the current state of the Type-C FSM corresponding to the power mode
defined in CC_POWER_MODE_CTRL register.
DS11503 - Rev 4
page 27/66
STUSB1600
Register description
5.1.8
HW_FAULT_STATUS_TRANS
Address: 12h
Access: RC
Note:
This register indicates a bit value change has occurred in HW_FAULT_STATUS register. It also alerts when the
overtemperature condition is met.
Table 24. HW_FAULT_STATUS_TRANS register
Bit
Field name
Reset
Description
7
THERMAL_FAULT
0b
1b: junction temperature is above temperature
threshold of 145° C
6
Reserved
0b
Do not use
5
VPU_OVP_FAULT_TRANS
0b
4
VPU_VALID_TRANS
0b
3
Reserved
0b
2
VCONN_SW_RVP_FAULT_TRANS
0b
1
VCONN_SW_OCP_FAULT_TRANS
0b
0
VCONN_SW_OVP_FAULT_TRANS
0b
0b: cleared
0b: cleared
1b: transition occured on VPU_OVP_FAULT bit
0b: cleared
1b: transition occured on VPU_VALID bit
Do not use
0b: cleared
1b: transition occured on VCONN_SW_RVP_FAULT
bits
0b: cleared
1b: transition occured on VCONN_SW_OCP_FAULT
bits
0b: cleared
DS11503 - Rev 4
1b: transition occured on VCONN_SW_OVP_FAULT
bits
page 28/66
STUSB1600
Register description
5.1.9
HW_FAULT_STATUS
Address: 13h
Access: RO
Note:
This register provides information on hardware fault conditions related to the internal pull-up voltage in source
power role and to the VCONN power switches.
Table 25. HW_FAULT_STATUS register
Bit
Field name
Reset
7
VPU_OVP_FAULT
0b
6
5
4
3
2
1
0
VPU_VALID
VCONN_SW_RVP_FAULT_CC1
VCONN_SW_RVP_FAULT_CC2
VCONN_SW_OCP_FAULT_CC1
VCONN_SW_OCP_FAULT_CC2
VCONN_SW_OVP_FAULT_CC1
VCONN_SW_OVP_FAULT_CC2
1b
0b
0b
0b
0b
0b
0b
Description
0b: voltage on CC pins is below OVP threshold of 6.0 V
1b: voltage on CC pins is above OVP threshold of 6.0 V
0b: pull-up voltage on CC pins is below UVLO threshold of
2.8 V
1b: pull-up voltage on CC pins is above UVLO threshold of
2.8 V (safe condition)
0b: no reverse voltage on VCONN power switch connected
to CC1
1b: reverse voltage detected on VCONN power switch
connected to CC1
0b: no reverse voltage on VCONN power switch connected
to CC2
1b: reverse voltage detected on VCONN power switch
connected to CC2
0b: no short-circuit or overcurrent on VCONN power switch
connected to CC1
1b: short-circuit or overcurrent detected on VCONN power
switch connected to CC1
0b: no short-circuit or overcurrent on VCONN power switch
connected to CC2
1b: short-circuit or overcurrent detected on VCONN power
switch connected to CC2
0b: no overvoltage on VCONN power switch connected to
CC1
1b: overvoltage detected on VCONN power switch
connected to CC1
0b: no overvoltage on VCONN power switch connected to
CC2
1b: overvoltage detected on VCONN power switch
connected to CC2
The VPU_VALID and VPU_OVP_FAULT bits are related to the internal pull-up voltage applied on the CC pins
when the device works in source power role. They inform about an internal supply issue that could prevent the
device from detecting a valid connection to a distant device.
5.1.10
CC_CAPABILITY_CTRL
Address: 18h
Access: R/W
Note:
DS11503 - Rev 4
When operating in source power role, this register allows the advertising of the current capability to be changed
as defined in the USB Type-C standard specification and the VCONN supply capability.
page 29/66
STUSB1600
Register description
Table 26. CC_CAPABILITY_CTRL register
Bit
Field name
Reset
Description
00b: default USB current (500 mA or 900 mA)
7:6
CC_CURRENT_ADVERTISED
01b(NVM)
01b: 1.5 A USB Type-C current
10b: 3.0 A USB Type-C current
11b: do not use
5.1.11
5
Reserved
1b
4
CC_VCONN_DISCHARGE_EN
0b (NVM)
3:1
Reserved
000b
0
CC_VCONN_SUPPLY_EN
1b(NVM)
Do not use
0b: VCONN discharge disabled on CC pin
1b: VCONN discharge enabled for 250 ms on CC pin
Do not use
0b: VCONN supply capability disabled on CC pin
1b: VCONN supply capability enabled on CC pin
CC_VCONN_SWITCH_CTRL
Address: 1Eh
Access: R/W
Note:
This register allows the default current limit of the power switches supplying VCONN on the CC pins to be
changed.
Table 27. CC_VCONN_SWITCH_CTRL register
Bit
Field name
Reset
7:4
Reserved
0000b
Description
Do not use
0000b: 350 mA (default)
0001b: 300 mA
0010b: 250 mA
0011b: 200 mA
0100b: 150 mA
3:0
CC_VCONN_SWITCH_ILIM
0000b (NVM)
0101b: 100 mA
0110b: 400 mA
0111b: 450 mA
1000b: 500 mA
1001b: 550 mA
1010b: 600 mA
5.1.12
VCONN_MONITORING_CTRL
Address: 20h
Access: R/W
Note:
This register allows the default voltage monitoring conditions for VCONN to be modified.
Table 28. VCONN_MONITORING_CTRL register
DS11503 - Rev 4
Bit
Field name
Reset
7
VCONN_MONITORING_EN
1b
Description
0b: disables UVLO threshold detection on VCONN pin
1b: enables UVLO threshold detection on VCONN pin
page 30/66
STUSB1600
Register description
Bit
Field name
Reset
Description
6
VCONN_UVLO_THRESHOLD
0b
1b: selects low UVLO threshold (case where VCONN-powered
accessories operate down to 2.7 V)
5
Reserved
1b
Do not use
4
Reserved
0b
Do not use
3:0
Reserved
0000b
Do not use
0b: selects high UVLO threshold (default)
Disabling the UVLO threshold detection on VCONN pin deactivates the VCONN power path and sets
VCONN_PRESENCE bit to 0b in the MONITORING_STATUS register.
See Section 8.3 Electrical and timing characteristics for the threshold voltage description and value on VCONN
pin.
DS11503 - Rev 4
page 31/66
STUSB1600
Register description
5.1.13
VBUS_MONITORING_RANGE_CTRL
Address: 22h
Access: R/W
Note:
This register allows the low and high limits of the VBUS monitoring voltage range to be changed during
attachment.
Table 29. VBUS_MONITORING_RANGE_CTRL register
Bit
Field name
Reset
Description
7:4
SHIFT_HIGH_VBUS_LIMIT
0000b (NVM)
Binary coded VSHUSBH coefficient to shift up the nominal high
voltage limit from 1% (0001b) to 15% (1111b) of VBUS voltage
by step of 1%
3:0
SHIFT_LOW_VBUS_LIMIT
0000b (NVM)
Binary coded VSHUSBL coefficient to shift down the nominal low
voltage limit from 1% (0001b) to 15% (1111b) of VBUS voltage
by step of 1%
VBUS voltage is fixed at 5.0 V. The nominal values of the high and low limits of VBUS monitoring voltage range are
respectively VBUS+5% and VBUS-5%. Each coefficient VSHUSBH and VSHUSBL represents the fraction of VBUS
voltage that is either added or subtracted to the nominal value of the corresponding limit to determine the VBUS
monitoring voltage limits (see Section 8.3 Electrical and timing characteristics).
When STUSB1600 is in unattached state, the register takes the reset values. When a device is attached, the
register takes the values set in the NVM (see Section 6 Start-up configuration) or those set by software during
attachment.
The register is valid for both power role. Depending on whether the device operates in source power role or sink
power role, the register takes the values set in the NVM related to the running power role.
5.1.14
RESET_CTRL
Address: 23h
Access: R/W
Note:
This register allows the device to be reset by software.
Table 30. RESET_CTRL register
Bit #
Field Name
Reset
7:1
Reserved
0000000b
0
SW_RESET_EN
0b
Description
Do not use
0b: device reset is performed by hardware RESET pin
1b: forces the device reset as long as this bit value is set
The SW_RESET_EN bit acts as the hardware RESET pin except that I2C control registers are not reset to their
default value. They keep the last changed value. The SW_RESET_EN bit does not command the RESET pin.
5.1.15
VBUS_DISCHARGE_TIME_CTRL
Address: 25h
Access: R/W
Note:
DS11503 - Rev 4
This register contains the parameter used to define the VBUS discharge time when the internal VBUS discharge
path is activated on VBUS_SENSE pin.
page 32/66
STUSB1600
Register description
Table 31. VBUS_DISCHARGE_TIME_CTRL register
5.1.16
Bit
Field name
Reset
7:4
VBUS_DISCHARGE_TIME_TO_0V
0110b (NVM)
3:0
Reserved
1111b
Description
Binary coded TDISPARAM coefficient used to compute
the VBUS discharge time to 0 V: TDISUSB =84 ms
(typical) * TDISPARAM
Do not use
VBUS_DISCHARGE_STATUS
Address: 26h
Access: RO
Note:
This register gives information during the operation on the activation state of the internal VBUS discharge path on
VBUS_SENSE pin.
Table 32. VBUS_DISCHARGE_STATUS register
5.1.17
Bit
Field name
Reset
7
VBUS_DISCHARGE_EN
0b
6:1
Reserved
0000000b
Description
0b: VBUS discharge path is deactivated
1b: VBUS discharge path is activated
Do not use
VBUS_ENABLE_STATUS
Address: 27h
Access: R0
Note:
This register gives some information during operations on the activation state of the VBUS power path through
VBUS_EN_SRC pin in source power role and VBUS_EN_SNK pin in sink power role.
Table 33. VBUS_ENABLE_STATUS register
DS11503 - Rev 4
Bit
Field name
Reset
7:2
Reserved
0b
1
VBUS_SINK_EN
0b
0
VBUS_SOURCE_EN
0b
Description
Do not use
0b: VBUS sink power path is disabled
1b: VBUS sink power path is enabled
0b: VBUS source power path is disabled
1b: VBUS source power path is enabled
page 33/66
STUSB1600
Register description
5.1.18
CC_POWER_MODE_CTRL
Address: 28h
Access: R/W
Note:
this register allows the default Type-C power mode to be changed if needed during an operation. It requires that
the hardware implementation of the targeted application is consistent with the functioning of the new Type-C
power mode selected.
Table 34. CC_POWER_MODE_CTRL register
Bit
Field name
Reset
7:3
Reserved
00000b
Description
Do not use
000b: source power role with accessory support
001b: sink power role with accessory support
010b: sink power role without accessory support
2:0
CC_POWER_MODE
011b: dual power role with accessory support
011 (NVM)
100b: dual power role with accessory and Try.SRC support
101b: dual power role with accessory and Try.SNK support
110b: do not use
111b: do not use
5.1.19
VBUS_MONITORING_CTRL
Address: 2Eh
Access: R/W
Note:
this register allows the default monitoring conditions of the VBUS voltage over the power path from the VDD and
VBUS_SENSE pins to be modified.
Table 35. VBUS_MONITORING_CTRL register
Bit
Field name
Reset
7
Reserved
0b
6
VDD_OVLO_DISABLE
0b(NVM)
5
Reserved
0b
Description
Do not use
0b: enables OVLO threshold detection on VDD pin
1b: disables OVLO threshold detection on VDD pin
Do not use
0b: enables valid VBUS voltage range detection
4
VBUS_VALID_RANGE_DISABLE
0b(NVM)
1b: disables valid VBUS voltage range detection
(VBUS UVLO threshold detection used instead)
3
Reserved
0b
Do not use
00b : VBUS vSafe0V threshold = 0.6 V
2:1
VBUS_VSAFE0V_THRESHOLD
00b (NVM)
01b : VBUS vSafe0V threshold = 0.9 V
10b : VBUS vSafe0V threshold = 1.2 V
11b : VBUS vSafe0V threshold = 1.8 V
0
DS11503 - Rev 4
VDD_UVLO_DISABLE
1b(NVM)
0b: enables UVLO threshold detection on VDD pin
1b: disables UVLO threshold detection on VDD pin
page 34/66
STUSB1600
Register description
The VBUS_VALID_RANGE_DISABLE and VBUS_VSAFE0V_THRESHOLD bits define monitoring conditions
applicable to VBUS_SENSE pin connected to USB Type-C receptacle side.
The VBUS_VALID_RANGE_DISABLE bit allows the valid VBUS voltage range conditions to be substituted by the
VBUS UVLO threshold condition to establish a valid device attachment and to assert the VBUS power path.
The VBUS_VSAFE0V_THRESHOLD bit indicates the voltage value of the VBUS vSafe0V threshold used in
source power role as a Type-C FSM condition to establish a valid device attachment.
The VDD_UVLO_DISABLE and VDD_OVLO_DISABLE bit define monitoring conditions applicable to VDD supply
pin when it is connected to the main power supply in source power role only:
•
When UVLO detection is enabled, VBUS_EN_SRC pin is asserted only if voltage on VDD pin is above
VDDUVLO threshold
•
When OVLO detection is enabled, VBUS_EN_SRC pin is asserted only if voltage on VDD pin is below
VDDOVLO threshold
See Section 8.3 Electrical and timing characteristics for the threshold voltage description and value on VDD and
VBUS_SENSE pins.
DS11503 - Rev 4
page 35/66
STUSB1600
Start-up configuration
6
Start-up configuration
6.1
User-defined parameters
The STUSB1600 has a set of user-defined parameters that can be customized by NVM re-programming and/or
by software through I2C interface. It allows the customer to change the preset configuration of USB Type-C
interface and to define a new configuration to meet specific customer requirements addressing various
applications, use cases or specific implementations.
The NVM re-programming overrides the initial default setting to define a new default setting that is used at powerup or after a reset. The default value is copied at power-up, or after a reset, from the embedded NVM into
dedicated I2C register bits (see Section 5.1 Register description).
When a default value is changed during functioning by software, the new setting remains in effect as long as the
STUSB1600 operates or when it is changed again. But after power-off and power-up, or after a reset, the
STUSB1600 takes back default values defined in the NVM.
6.2
Default start-up configuration
The table below lists the user-defined parameters and indicates the default start-up configuration of the
STUSB1600.
Three types of user-defined parameters are specified in the table with respect to the “Customization type” column:
•
•
SW: indicates parameters that can be customized only by software through I2C interface during system
operations
NVM: indicates parameters that can be customized by NVM re-programming only
NVM/SW: indicates parameters that can be customized by NVM re-programming and/or by software
•
through I2C interface during system operations
•
Table 36. STUSB1600 user-defined parameters and default settings
Customization type
Default value and description
I2C register
address
NVM / SW
CC_CONNECTION_STATUS_AL_MASK 1b: interrupt masked
0Ch
NVM / SW
MONITORING_STATUS_AL_MASK
1b: interrupt masked
0Ch
NVM / SW
HW_FAULT_STATUS_AL_MASK
1b: interrupt masked
0Ch
STANDBY_POWER_MODE_DISABLE
1b: disables standby power mode
n. a.
CC_CURRENT_ADVERTISED
01b: 1.5 A
18h
NVM / SW
CC_VCONN_DISCHARGE_EN
0b: VCONN discharge disabled on CC pin
18h
NVM / SW
CC_VCONN_SUPPLY_EN
1b: VCONN supply capability enabled on CC
pin
18h
NVM / SW
CC_VCONN_SWITCH_ILIM
0000b: 350 mA
1Eh
SW
VCONN_MONITORING_EN
1b: enables UVLO threshold detection on
VCONN pin
20h
SW
VCONN_UVLO_THRESHOLD
0b: high UVLO threshold of 4.65 V
20h
NVM / SW
SHIFT_HIGH_VBUS_LIMIT_SOURCE
0101b: VSHUSBH = 5% of VBUS, high voltage
limit VMONUSBH Source = VBUS+10%
22h
NVM / SW
SHIFT_LOW_VBUS_LIMIT_SOURCE
0101b: VSHUSBL = 5% of VBUS, low voltage
limit VMONUSBL Source = VBUS-10%
22h
NVM
NVM / SW
DS11503 - Rev 4
Parameter
page 36/66
STUSB1600
Default start-up configuration
Customization type
Parameter
Default value and description
I2C register
address
0101b: VSHUSBH = 5% of VBUS, high
NVM/SW
SHIFT_HIGH_VBUS_LIMIT_SINK
voltage limit VMONUSBH Sink =
22h
VBUS+10%
SHIFT_LOW_VBUS_LIMIT_SINK
1111b: VSHUSBL = 15% of VBUS, low voltage
limit VMONUSBL Sink = VBUS-20%
22h
SW_RESET_EN
0b: device reset is performed from hardware
RESET pin
23h
VBUS_DISCHARGE_TIME_TO_0V
0110b:TDISPARAM = 6, discharge time TDISUSB
= 504 ms
25h
VBUS_DISCHARGE_DISABLE
0b: enables VBUS discharge path
n.a.
NVM / SW
CC_POWER_MODE
011b: dual power role with accessory support
28h
NVM / SW
VDD_OVLO_DISABLE
0b: enables OVLO threshold detection on
VDD pin
2Eh
NVM / SW
VDD_VALID_RANGE_DISABLE
0b: enables valid VBUS voltage range
detection
2Eh
NVM / SW
VBUS_VSAFE0V_THRESHOLD
00b: VBUS vSafe0V threshold = 0.6 V
2Eh
NVM / SW
VDD_UVLO_DISABLE
1b: disables UVLO threshold detection on
VDD pin
2Eh
NVM / SW
SW
NVM / SW
NVM
DS11503 - Rev 4
page 37/66
STUSB1600
Application
7
Application
The sections below are not part of ST product specifications. They are intended to give a generic application
overview to be used by the customer as a starting point for further implementations and customizations. ST does
not warrant compliance with customer specifications. Full system implementation and validation are under
customer's responsibility.
7.1
General information
7.1.1
Power supplies
The STUSB1600 can be supplied in three different ways depending on the targeted application:
•
Through VDD pin only for applications powered by VBUS only that operate either in source power role or in
sink power role with dead-battery mode support
•
Through VSYS pin only for AC-powered applications with a system power supply delivering 3.3 V or 5 V
•
Through VDD and VSYS pins either for applications powered by a battery with a dead-battery mode support
or for applications powered by V BUS with a system power supply delivering 3.3 V or 5 V. When both VDD
and VSYS power supplies are present, the low power supply VSYS is selected when VSYS voltage is above
3.1 V. Otherwise VDD is selected
7.1.2
Connection to MCU or application processor
The connection to an MCU or an application processor is optional.
When a connection through I²C interface is implemented, it provides extensive functionality during system
operations. For instance, it may be used to:
1.
Define the port configuration during system boot (in case the NVM parameters are not customized during
manufacturing)
2.
Change the default configuration at any time during operations
3.
Re-configure the port power mode (i.e. source, sink or dual role),
4.
Adjust the port power capability in source power role according to contextual power availability and/or the
power partitioning with other ports
5.
Save system power by shutting down the DC-DC converter according to the attachment detection state
6.
Provide a diagnostic of the Type-C connection and the VBUS power path in real time
At power-up or after a reset, the first software access to the I2C registers of the STUSB1600 can happen only
after TLOAD as shown in the figure below. TLOAD corresponds to the time required to initialize the I²C registers with
the default values from the embedded NVM. At power-up, the loading phase starts when the voltage level on the
VREG_2V7 output pin of the 2.7 V internal regulator reaches 2.5 V to release the internal POR signal. After a
reset, the loading phase starts when the signal on the RESET pin is released.
Figure 7. I²C register initialization sequence at power-up or after a reset
DS11503 - Rev 4
page 38/66
STUSB1600
USB Type-C typical applications
7.2
USB Type-C typical applications
7.2.1
Source type applications
7.2.1.1
Application schematic
Figure 8. Implementation example in source type application
7.2.1.2
Default start-up configuration
Table 37. Default setting for a source type application
Customization type
Parameter
Default value and description
I2C register
address
NVM /SW
CC_CONNECTION_STATUS_AL_MASK 1b: interrupt masked
0Ch
NVM /SW
MONITORING_STATUS_AL_MASK
1b: interrupt masked
0Ch
NVM /SW
HW_FAULT_STATUS_AL_MASK
1b: interrupt masked
0Ch
STANDBY_POWER_MODE_DISABLE
1b: disables standby power mode
n. a.
NVM /SW
CC_CURRENT_ADVERTISED
01b: 1.5 A
18h
NVM /SW
CC_VCONN_DISCHARGE_EN
0b: VCONN discharge disabled on CC pin
18h
NVM /SW
CC_VCONN_SUPPLY_EN
1b: VCONN supply capability enabled on CC
pin
18h
NVM /SW
CC_VCONN_SWITCH_ILIM
0000b: 350 mA
1Eh
SW
VCONN_MONITORING_EN
1b: enables UVLO threshold detection on
VCONN pin
20h
SW
VCONN_UVLO_THRESHOLD
0b: high UVLO threshold of 4.65 V
20h
NVM
0101b:
NVM /SW
SHIFT_HIGH_VBUS_LIMIT_SOURCE
VSHUSBH = 5% of VBUS, high voltage limit
22h
VMONUSBH Source = VBUS+10%
DS11503 - Rev 4
page 39/66
STUSB1600
USB Type-C typical applications
Customization type
Parameter
I2C register
address
Default value and description
SHIFT_LOW_VBUS_LIMIT_SOURCE
0101b: VSHUSBL = 5% of VBUS, low voltage
limit VMONUSBL Source = VBUS-10%
22h
SW_RESET_EN
0b: device reset is performed from hardware
RESET pin
23h
VBUS_DISCHARGE_TIME_TO_0V
0110b: TDISPARAM = 6, discharge time
TDISUSB = 504 ms
25h
VBUS_DISCHARGE_DISABLE
0b: enables VBUS discharge path
n. a.
NVM /SW
CC_POWER_MODE
000b: source power role with accessory
support (1)
28h
NVM /SW
VDD_OVLO_DISABLE
0b: enables OVLO threshold detection on
VDD pin
2Eh
NVM /SW
VBUS_VALID_RANGE_DISABLE
0b: enables valid VBUS voltage range
detection
2Eh
NVM /SW
VBUS_VSAFE0V_THRESHOLD
00b : VBUS vSafe0V threshold = 0.6 V
2Eh
NVM /SW
VDD_UVLO_DISABLE
1b: disables UVLO threshold detection on
VDD pin
2Eh
NVM /SW
SW
NVM /SW
NVM
1. Indicates parameter customized by NVM re-programming.
7.2.1.3
VBUS power path assertion
Table 38. Conditions for VBUS power path assertion in source power role
Electrical
value
Pin
Operation conditions
Type-C attached state
Comment
VDD pin
monitoring
VBUS_SENSE pin
monitoring
VDD < VDDOVLO if
VDD pin is supplied
VBUS is within valid
voltage range
The signal is
asserted only if all
the valid operation
conditions are met
VDD > VDDOVLO if
VDD pin is supplied
VBUS is out of valid
voltage range
The signal is deasserted when at
least one non-valid
operation condition
is met.
Attached.SRC
or
UnorientedDebug
Accessory.SRC
0
or
VBUS_EN_SRC
OrientedDebug
Accessory.SRC
HiZ
7.2.1.4
Any other state
Device state according to connection state
Table 39. Source power role with accessory support
Type-C device state
Connection
state
CC1
pin
CC2
CC_OPERATION_
pin
STATUS
A_B_SIDE
pin
VCONN
HiZ
OFF
supply
VBUS_EN_SRC pin
CC_CONNECTION_
STATUS register @0Eh
register@11h
Nothing
attached
DS11503 - Rev 4
Open
Open
Unattached.SRC
HiZ
00h
page 40/66
STUSB1600
USB Type-C typical applications
Type-C device state
Connection
state
CC1
pin
CC2
CC_OPERATION_
pin
STATUS
A_B_SIDE
pin
VCONN
HiZ
OFF
0
2Dh
0
OFF
0
2Dh
HiZ
OFF
HiZ
00h
HiZ
OFF
HiZ
00h
HiZ
CC2
0
2Fh
0
CC1
0
2Fh
supply
VBUS_EN_SRC pin
CC_CONNECTION_
STATUS register @0Eh
register@11h
Rd
Open
Open
Rd
Powered
cable without
sink attached
Open
Ra
Ra
Open
Powered
cable with sink
attached
Rd
Ra
Ra
Rd
Debug
accessory
mode
attached
source role
Rp
Rp
Unattached.SRC
HiZ
OFF
HiZ
00h
Debug
accessory
mode
attached sink
role
Rd
Rd
UnorientedDebug
Accessory.SRC
HiZ
OFF
0
6Dh
Rd
≤Ra
Sink attached
or Vconnpowered
Accessory
attached
Debug
accessory
mode
attached sink
role
Audio adapter
accessory
mode
attached
Attached.SRC
Unattached.SRC
Attached.SRC
≤Ra
Rd
OrientedDebug
Accessory.SRC
Ra
Ra
AudioAccessory
HiZ
OFF
0
6Dh
0
OFF
0
6Dh
HiZ
OFF
HiZ
81h
The value of CC1 and CC2 pins is defined from a termination perspective and corresponds to the termination
presented by the connected device.
The CC_CONNECTION_STATUS register can report other values than the one presented in this table. This
reflects the state transitions in Type-C FSM that can be ignored from the application stand point.
DS11503 - Rev 4
page 41/66
STUSB1600
USB Type-C typical applications
7.2.2
Sink type application
7.2.2.1
Application schematic in sink type
Figure 9. Implementation example in sink type application
Note:
The schematic configuration is in dead-battery mode.
7.2.2.2
Default start-up configuration in sink type
Table 40. Default setting for a sink type application
Customization
type
Parameter
Default value and description
I2C register
address
NVM / SW
CC_CONNECTION_STATUS_AL_MASK 1b: interrupt masked
0Ch
NVM / SW
MONITORING_STATUS_AL_MASK
1b: interrupt masked
0Ch
NVM / SW
HW_FAULT_STATUS_AL_MASK
1b: interrupt masked
0Ch
STANDBY_POWER_MODE_DISABLE
1b: disables standby power mode
n. a.
NVM / SW
CC_CURRENT_ADVERTISED
01b: 1.5 A
18h
NVM / SW
CC_VCONN_DISCHARGE_EN
0b: VCONN discharge disabled on CC pin
18h
NVM / SW
CC_VCONN_SUPPLY_EN
1b: VCONN supply capability enabled on CC pin
18h
NVM / SW
CC_VCONN_SWITCH_ILIM
0000b: 350 mA
1Eh
SW
VCONN_MONITORING_EN
1b: enables UVLO threshold detection on VCONN
pin
20h
SW
VCONN_UVLO_THRESHOLD
0b: high UVLO threshold of 4.65 V
20h
NVM
0101b: VSHUSBH = 5% of VBUS, high voltage limit
NVM / SW
DS11503 - Rev 4
SHIFT_HIGH_VBUS_LIMIT_SINK
VMONUSBH Sink = VBUS+10%
22h
page 42/66
STUSB1600
USB Type-C typical applications
Customization
Parameter
type
NVM / SW
SW
NVM / SW
I2C register
Default value and description
address
SHIFT_LOW_VBUS_LIMIT_SINK
1111b: VSHUSBL = 15% of VBUS, low voltage limit
VMONUSBL Sink = VBUS-20%
22h
SW_RESET_EN
0b: device reset is performed from hardware
RESET pin
23h
VBUS_DISCHARGE_TIME_TO_0V
0110b: TDISPARAM = 6, discharge time
25h
TDISUSB = 504 ms
VBUS_DISCHARGE_DISABLE
0b: enables VBUS discharge path
n. a.
NVM / SW
CC_POWER_MODE
001b: sink power role with accessory support(1)
28h
NVM / SW
VDD_OVLO_DISABLE
0b: enables OVLO threshold detection on VDD pin
2Eh
NVM / SW
VBUS_VALID_RANGE_DISABLE
0b: enables valid VBUS voltage range detection
2Eh
NVM / SW
VBUS_VSAFE0V_THRESHOLD
00b: VBUS vSafe0V threshold = 0.6 V
2Eh
NVM / SW
VDD_UVLO_DISABLE
1b: disables UVLO threshold detection on VDD pin
2Eh
NVM
1. Indicates parameter customized by NVM re-programming.
7.2.2.3
VBUS power path assertion in sink power role
Table 41. Conditions for VBUS power path assertion in sink power role
Electrical
value
Pin
Operation conditions
Type-C attached state
VBUS_SENSE
pin monitoring
Not applicable
VBUS is within
valid voltage
range
The signal is
asserted only if all
the valid operation
conditions are
met.
Not applicable
VBUS is out of
valid voltage
range
The signal is deasserted when at
least one nonvalid operation
condition is met.
Attached.SNK
0
or
DebugAccessory.SNK
VBUS_EN_SNK
HiZ
7.2.2.4
Any other state
Comment
VDD pin
monitoring
Device state according to connection state (sink power role)
Table 42. Sink power role with accessory support
Type-C device state
Connection
state
CC1 pin
CC2 pin
CC_OPERATION_
STATUS register
@11h
A_B_SIDE
pin
VCONN
supply
VBUS_EN_SNK pin
HiZ
OFF
HiZ
CC_CONNECTION_
STATUS register @0Eh
(Toggling)
Unattached.
Nothing
attached
Open
Open
SNK
00h
Unattached.
ACC
DS11503 - Rev 4
page 43/66
STUSB1600
USB Type-C typical applications
Type-C device state
Connection
state
Source
attached
Powered
cable
without
source
attached
CC1 pin
CC2 pin
CC_OPERATION_
STATUS register
@11h
CC_CONNECTION_
A_B_SIDE
pin
VCONN
supply
VBUS_EN_SNK pin
HiZ
OFF
0
41h
STATUS register @0Eh
Rp
Open or Ra
Open or
Ra
Rp
SNK
0
OFF
0
41h
Open
Ra
(Toggling)
HiZ
OFF
HiZ
00h
HiZ
OFF
HiZ
00h
HiZ
OFF
HiZ
00h
HiZ
OFF
0
61h
Attached.
Unattached.
Ra
Open
SNK
Unattached.
ACC
(Toggling)
Debug
accessory
mode
attached
sink role
Unattached.
Rd
Rd
SNK
Unattached.
ACC
Debug
accessory
mode
attached
source role
Debug
accessory
mode
attached
source role
Debug
Rp def/
1.5 A/ 3 A
Rp def/
1.5A/3A
Accessory.SNK
(default USB)
Rp 3 A
Rp 1.5 A
Rp 1.5 A
Rp 3 A
Debug
accessory
mode
attached
source role
Rp 1.5 A
Rp def.
Rp def.
Rp 1.5 A
Debug
accessory
mode
attached
source role
Rp 3 A
Rp def.
Rp def.
Rp 3 A
Ra
Ra
Audio accessory
Rd
Ra
(Toggling)
Audio
adapter
accessory
mode
attached
VCONNpowered
accessory
attached
Debug
Accessory.SNK
(Default USB)
Debug
Accessory.SNK
(1.5 A)
Debug
Accessory.SNK
(3.0 A)
HiZ
0
61h
OFF
0
HiZ
0
61h
61h
OFF
0
HiZ
61h
61h
OFF
0
HiZ
OFF
HiZ
81h
HiZ
OFF
HiZ
00h
HiZ
OFF
HiZ
00h
0
61h
Unattached.
Ra
Rd
SNK
Unattached.
ACC
The value of CC1 and CC2 pins is defined from a termination perspective and corresponds to the termination
presented by the connected device.
The CC_CONNECTION_STATUS register can report other values than the one presented inside this table. This
reflects the state transitions in Type-C FSM that can be ignored from the application stand point.
DS11503 - Rev 4
page 44/66
STUSB1600
USB Type-C typical applications
7.2.3
Dual role type application
7.2.3.1
Application schematic in dual role type
Figure 10. Implementation example in dual role type application
Note:
DS11503 - Rev 4
The schematic configuration in dead-battery mode.
page 45/66
STUSB1600
USB Type-C typical applications
7.2.3.2
Default start-up configuration in dual role type application
Table 43. Default setting for a dual role type application
Customization type
Parameter
Default value and description
I2C register
address
NVM / SW
CC_CONNECTION_STATUS_AL_MASK 1b: interrupt masked
0Ch
NVM / SW
MONITORING_STATUS_AL_MASK
1b: interrupt masked
0Ch
NVM / SW
HW_FAULT_STATUS_AL_MASK
1b: interrupt masked
0Ch
STANDBY_POWER_MODE_DISABLE
1b: disables standby power mode
n. a.
NVM / SW
CC_CURRENT_ADVERTISED
01b: 1.5 A
18h
NVM / SW
CC_VCONN_DISCHARGE_EN
0b: VCONN discharge disabled on CC pin
18h
NVM / SW
CC_VCONN_SUPPLY_EN
1b: VCONN supply capability enabled on CC
pin
18h
NVM / SW
CC_VCONN_SWITCH_ILIM
0000b: 350 mA
1Eh
SW
VCONN_MONITORING_EN
1b: enables UVLO threshold detection on
VCONN pin
20h
SW
VCONN_UVLO_THRESHOLD
0b: high UVLO threshold of 4.65 V
20h
NVM
0101b: VSHUSBH = 5% of VBUS,
NVM / SW
SHIFT_HIGH_VBUS_LIMIT_SOURCE
NVM / SW
SHIFT_LOW_VBUS_LIMIT_SOURCE
NVM / SW
SHIFT_HIGH_VBUS_LIMIT_SINK
NVM / SW
SHIFT_LOW_VBUS_LIMIT_SINK
SW
NVM / SW
VBUS_DISCHARGE_TIME_TO_0V
0101b: VSHUSBL = 5% of VBUS, low voltage
limit VMONUSBL Source = VBUS-10%
0101b: VSHUSBH = 5% of VBUS, high
voltage limit VMONUSBH Sink = VBUS+10%
1111b: VSHUSBL = 15% of VBUS, low
voltage limit VMONUSBL Sink = VBUS-20%
0b: device reset is performed from hardware
RESET pin
0110b:TDISPARAM = 6, discharge time
TDISUSB = 504 ms
22h
22h
22h
22h
23h
25h
VBUS_DISCHARGE_DISABLE
0b: enables VBUS discharge path
n. a.
NVM / SW
CC_POWER_MODE
011b: dual power role with accessory support
28h
NVM / SW
VDD_OVLO_DISABLE
0b: enables OVLO threshold detection on
VDD pin
2Eh
NVM / SW
VBUS_VALID_RANGE_DISABLE
0b: enables valid VBUS voltage range
detection
2Eh
NVM / SW
VBUS_VSAFE0V_THRESHOLD
00b : VBUS vSafe0V threshold = 0.6 V
2Eh
NVM / SW
VDD_UVLO_DISABLE
1b: disables UVLO threshold detection on
VDD pin
2Eh
NVM
DS11503 - Rev 4
SW_RESET_EN
high voltage limit VMONUSBH Source = VBUS
+10%
page 46/66
STUSB1600
USB Type-C typical applications
7.2.3.3
VBUS power path assertion in dual role
Table 44. Conditions for VBUS power path assertion in source power role
Pin
Electrical
value
Operation conditions
Type-C attached state
VDD pin
monitoring
Comment
VBUS_SENSE pin
monitoring
Attached.SRC
or
0
UnorientedDebug
VDD < VDDOVLO
Accessory.SRC
if VDD pin is
supplied
or
VBUS_EN_SRC
VBUS within valid
voltage range
The signal is
asserted only if all
the valid operation
conditions are met
VBUS is out of valid
voltage range
The signal is deasserted when at
least one non-valid
operation condition is
met
OrientedDebug
Accessory.SRC
VDD > VDDOVLO
HiZ
Any other state
if VDD pin is
supplied
Table 45. Conditions for VBUS power path assertion in sink power role
Pin
Electrical
value
Operation conditions
Type-C attached
state
VDD pin
monitoring
VBUS_SENSE pin
monitoring
Attached.SNK
0
Debug
Not applicable
VBUS is within valid
voltage range
Accessory.SNK
VBUS_EN_SNK
HiZ
DS11503 - Rev 4
or
Any other state
Not applicable
VBUS is out of valid
voltage range
Comment
The signal is asserted
only if all the valid
operation conditions are
met
The signal is deasserted when at least
one non-valid operation
condition is met
page 47/66
STUSB1600
USB Type-C typical applications
7.2.3.4
Device state according to connection state (dual role)
Table 46. Dual power role with accessory support
Type-C device
state
Connect.
state
CC_
CC1 pin
CC2 pin
OPERAT_
CC_CONNECTION_
A_B_SIDE
pin
VCONN
supply
VBUS_EN_SRC
pin
VBUS_EN_SNK
pin
STATUS
register @0Eh
STATUS
register @11h
(Toggling)
Nothing
attached
Open
Open
Unattached.SRC
HiZ
OFF
Hiz
HiZ
00h
Unattached.SNK
Rd
Open
Attached.
HiZ
OFF
0
HiZ
2Dh
Open
Rd
SRC
0
OFF
0
HiZ
2Dh
Powered
cable
without sink
or source
attached
Open
Ra
HiZ
OFF
HiZ
HiZ
00h
Ra
Open
HiZ
OFF
HiZ
HiZ
00h
Powered
cable with
sink
attached or
VCONN
powered
accessory
attached
Rd
Ra
HiZ
CC2
0
HiZ
2Fh
0
CC1
0
HiZ
2Fh
HiZ
OFF
0
Hiz
6Dh
HiZ
OFF
0
HiZ
6Dh
0
OFF
0
HiZ
6Dh
HiZ
OFF
HiZ
HiZ
81h
HiZ
OFF
HiZ
0
41h
0
OFF
HiZ
0
41h
HiZ
OFF
HiZ
0
61h
HiZ
OFF
HiZ
0
61h
0
OFF
HiZ
0
61h
Sink
attached
Unattached.SRC
Unattached.SNK
Attached.
Ra
Rd
Rd
Rd
Rd
≤Ra
≤Ra
Rd
Ra
Ra
Rp
Open or
Ra
Open or
Ra
Rp
Debug
accessory
mode
attached
sink role
Debug
accessory
mode
attached
sink role
Audio
adapter
accessory
mode
attached
Source
attached
(Toggling)
Rp def/
Rp def/
Debug
accessory 1.5 A/3 A 1.5 A/3 A
mode
Rp 3 A Rp 1.5 A
attached
source role Rp 1.5 A Rp 3 A
DS11503 - Rev 4
SRC
UnorientedDebug
Accessory.SRC
Oriented
Debug
Accessory.SRC
Audio
Accessory
Attached.
SNK
Debug
Accessory.SNK
(default USB)
page 48/66
STUSB1600
USB Type-C typical applications
Type-C device
state
Connect.
state
CC_
CC1 pin
CC2 pin
OPERAT_
CC_CONNECTION_
A_B_SIDE
pin
VCONN
supply
VBUS_EN_SRC
pin
VBUS_EN_SNK
pin
STATUS
register @0Eh
STATUS
register @11h
Debug
accessory
mode
attached
source role
Rp 1.5 A
Rp def.
Rp def
Rp 1.5 A
Debug
accessory
mode
attached
source role
Rp 3 A
Rp def.
Rp def.
Rp 3 A
Debug
Accessory.SNK
(1.5 A)
Debug
Accessory.SNK
(3.0 A)
HiZ
OFF
HiZ
0
61h
0
OFF
HiZ
0
61h
HiZ
OFF
HiZ
0
61h
0
OFF
HiZ
0
61h
The value of CC1 and CC2 pins is defined from a termination perspective and corresponds to the termination
presented by the connected device.
The CC_CONNECTION_STATUS register can report other values than the one presented inside this table. This
reflects the state transitions in Type-C FSM that can be ignored from the application stand point.
DS11503 - Rev 4
page 49/66
STUSB1600
Electrical characteristics
8
Electrical characteristics
8.1
Absolute maximum ratings
All voltages are referenced to GND.
Table 47. Absolute maximum ratings
Symbol
Parameter
Value
VDD
Supply voltage on VDD pin
28
VSYS
Supply voltage on VSYS pin
6
High voltage on CC pins
22
High voltage on VBUS pins
28
VCC1, VCC2
VCC1DB, VCC2DB
Unit
VVBUS_EN_SRC
VVBUS_EN_SNK
VVBUS_SENSE
VSCL, VSDA
V
VALERT#
VRESET
VATTACH
VA_B_SIDE
Operating voltage on I/O pins
-0.3 to 6
VBUS_VALID
VDEBUG1
VDEBUG2
VCONN
VCONN voltage
TSTG
Storage temperature
TJ
Maximum junction temperature
ESD
DS11503 - Rev 4
6
-55 to 150
145
HBM
4
CDM
1.5
°C
kV
page 50/66
STUSB1600
Operating conditions
8.2
Operating conditions
Table 48. Operating conditions
Symbol
Parameter
Value
VDD
Supply voltage on VDD pin
4.1 to 22
VSYS
Supply voltage on VSYS pin
3.0 to 5.5
VCC1, VCC2
VCC1DB, VCC2DB
CC pins
0 to 5.5
High voltage pins
0 to 22
Unit
VVBUS_EN_SRC
VVBUS_EN_SNK
VVBUS_SENSE
VSCL, VSDA
V
VALERT#
VRESET
VATTACH
VA_B_SIDE
Operating voltage on I/O pins
0 to 4.5
VVBUS_VALID
VDEBUG1
VDEBUG2
DS11503 - Rev 4
VCONN
VCONN voltage
2.7 to 5.5
ICONN
VCONN rated current (default = 0.35 A)
0.1 to 0.6
A
TA
Operating temperature
-40 to 105
°C
page 51/66
STUSB1600
Electrical and timing characteristics
8.3
Electrical and timing characteristics
Unless otherwise specified: VDD = 5 V, TA = 25 °C, all voltages are referred to GND.
Table 49. Electrical characteristics
Symbol
Parameter
Conditions
Min.
Device idle as a SOURCE (not
connected, no communication)
I DD(SRC)
Current consumption
Typ.
Max.
Unit
158
VSYS @ 3.3 V
Device idle as a SOURCE (not
connected, no communication)
188
VDD @ 5.0 V
Device idle as a SINK (not
connected, no communication)
IDD (SNK)
Current consumption
113
VSYS @ 3.3 V
µA
Device idle as a SINK (not
connected, no communication)
140
VDD @ 5.0 V
Device standby (not connected,
low power)
ISTDBY
Standby current
consumption
33
VSYS @ 3.3 V
Device standby (not connected,
low power)
53
VDD @ 5.0 V
TLOAD
I2C registers loading
time from NVM
at power-up after a reset
30
ms
CC1 and CC2 pins
IP-USB
IP-1.5
CC current sources
IP-3.0
CC pin voltage VCC = 0 to 2.6 V,
40 °C < TA < +105 °C
-20%
80
+20%
-8%
180
+8%
-8%
330
+8%
VCCO
CC open pin voltage
CC unconnected, VDD = 3.0 to
5.5 V
2.75
Rd
CC pull-down
resistors
-40 °C < TA < +105 °C
-10%
VCCDB-1.5
VCCDB-3.0
External IP = 180 μA applied into
CC
CC pin voltage in
dead battery
condition
µA
V
5.1
+10%
kΩ
1.2
External IP = 330 μA applied into
CC
2.0
V
VDD = 0 V, dead-battery function
enabled
RINCC
DS11503 - Rev 4
CC input impedance
Pull-up and pull-down resistors
off
200
kΩ
page 52/66
STUSB1600
Electrical and timing characteristics
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
0.15
0.20
0.25
V
0.35
0.40
0.45
V
0.61
0.66
0.70
V
0.75
0.80
0.85
V
1.16
1.23
1.31
V
1.50
1.60
1.65
V
2.45
2.60
2.75
V
0.25
0.5
0.975
Ω
85
100
125
300
350
400
550
600
650
5.9
6
6.1
Low UVLO threshold
2.6
2.65
2.7
High UVLO threshold (default)
4.6
4.65
4.8
Max. Ra detection by source at
IP = IP -USB,
VTH0.2
Detection threshold 1 min. IP_USB detection by sink on
Rd,
min. CC voltage for connected
sink
VTH0.4
Detection threshold 2
VTH0.66
Detection threshold 3
VTH0.8
Detection threshold 4
VTH1.23
Detection threshold 5
VTH1.6
Detection threshold 6
VTH2.6
Detection threshold 7
Max. Ra detection by source at
IP = IP-1.5
Min. IP_1.5 detection by sink on
Rd
Max. Ra detection by source at
IP = IP-3.0
Min. IP_3.0 detection by sink on
Rd
Max. Rd detection by source at
IP = IP-USB and IP = IP-1.5
Max. Rd detection by source at
IP-3.0,
max. CC voltage for connected
sink
VCONN pin and power switches
RVCONN
VCONN path
resistance
IOCP
Overcurrent
protection
VOVP
Overvoltage
protection on CC
output pins
VUVP
Undervoltage
protection on
VCONN input pin
IVCONN= 0.2 A
-40 °C < TA < +105 °C
Programmable current limit
threshold (from 100 mA to 600
mA by step of 50 mA)
mA
V
V
VDD pin monitoring (source power role)
VDDOVLO
Overvoltage lockout
OVLO threshold detection
enabled, VDD pin supplied
5.8
6.0
6.2
VDDUVLO
Undervoltage lockout
UVLO threshold detection
enabled, VDD pin supplied
3.8
3.9
4.0
V
VBUS_SENSE pin monitoring and driving
VTHUSB
VTH0V
VBUS presence
threshold
VBUS safe 0 V
threshold (vSafe0V)
VSYS = 3.0 to 5.5 V
3.8
3.9
4.0
VSYS = 3.0 to 5.5 V
0.5
0.6
0.7
The threshold is programmable
from 0.6 V to 1.8 V.
0.8
0.9
1.0
1.1
1.2
1.3
1.7
1.8
1.9
Default VTHOV = 0.6 V
DS11503 - Rev 4
V
page 53/66
STUSB1600
Electrical and timing characteristics
Symbol
Parameter
Conditions
VBUS discharge
resistor
RDISUSB
VBUS discharge time
to 0 V
TDISUSB
The coefficient TDISPARAM is
programmable by NVM
default TDISPARAM = 6,
Min.
Typ.
Max.
Unit
600
700
800
Ω
70*
TDISPARAM
84*
TDISPARAM
100*
TDISPARAM
ms
TDISUSB = 504 ms
Coefficient VSHUSBH
programmable by NVM from
VMONUSBH
VBUS monitoring high 1% to 15% of VBUS by step of
threshold voltage
1%, default
VBUS +5%
+VSHUSBH
V
VBUS -5%VSHUSBL
V
VMONUSBH
source/sink = VBUS+10%
VMONUSBL
VBUS monitoring low
threshold voltage
Coefficient VSHUSBL
programmable by NVM from 1%
to 15% of VBUS by step of
1%, default
VMONUSBL Source = VBUS-10%
VMONUSBL Sink = VBUS-20%
Digital input/output (SCL, SDA, ALERT#, RESET, ATTACH, A_B_SIDE, VBUS_VALID, DEBUG1, DEBUG2)
VIH
High level input
voltage
VIL
Low level input
voltage
VOL
Low level output
voltage
1.2
Ioh = 3 mA
V
0.35
V
0.4
V
0.4
V
20 V open-drain outputs (VBUS_EN_SRC, VBUS_EN_SNK)
VOL
DS11503 - Rev 4
Low level output
voltage
Ioh = 3 mA
page 54/66
STUSB1600
Package information
9
Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK®
packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions
and product status are available at: www.st.com. ECOPACK® is an ST trademark.
9.1
QFN-24 EP - pitch 0.50 mm - (4 x 4 mm) package information
Figure 11. QFN-24 EP 4x4 mm package outline
DS11503 - Rev 4
page 55/66
STUSB1600
Thermal information
Table 50. QFN24-EP 4x4 mm package mechanical data
Symbol
mm
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
0.80
0.90
1.00
0.031
0.035
0.039
A1
0.00
0.02
0.05
0.000
0.001
0.002
b
0.18
0.25
0.30
0.007
0.010
0.012
D
3.95
4.00
4.05
0.156
0.157
0.159
D2
2.55
2.70
2.80
0.100
0.106
0.110
E
3.95
4.00
4.05
0.156
0.157
0.159
E2
2.55
2.70
2.80
0.100
0.106
0.110
e
0.45
0.50
0.55
0.018
0.020
0.022
K
0.15
-
-
0.006
-
-
L
0.30
0.40
0.50
0.0012
0.0016
0.020
Figure 12. QFN24 EP 4x4 mm recommended footprint
9.2
Thermal information
Table 51. Thermal information
Symbol
DS11503 - Rev 4
Parameter
Value
Unit
RθJA
Junction-to-ambient thermal resistance
37
°C/W
RθJC
Junction-to-case thermal resistance
5
°C/W
page 56/66
STUSB1600
Terms and abbreviations
10
Terms and abbreviations
Table 52. List of terms and abbreviations
Term
Accessory
modes
Audio adapter accessory mode. It is defined by the presence of Ra/Ra on CC1/CC2 pins.
Debug accessory mode. It is defined by the presence of Rd/Rd on CC1/CC2 pins in source power role or
Rp/Rp on CC1/CC2 pins in sink power role
DFP
Downstream facing port, specifically associated with the flow of data in a USB connection. Typically the ports
on a host or the ports on a hub to which devices are connected. In its initial state, the DFP sources VBUS and
VCONN, and supports data
DRP
Dual-role port. A port that can operate as either a source or a sink. The port role may be changed dynamically
Sink
Port asserting Rd on CC pins and consuming power from VBUS; most commonly a device
Source
UFP
DS11503 - Rev 4
Description
Port asserting Rp on CC pins and providing power over VBUS; most commonly a host or hub DFP
Upstream facing port, specifically associated with the flow of data in a USB connection. The port on a device
or a hub that connects to a host or the DFP of a hub. In its initial state, the UFP sinks VBUS and supports data
page 57/66
STUSB1600
Ordering information
11
Ordering information
Table 53. Ordering information
DS11503 - Rev 4
Order code
USB Type-C
Rp default
Package
Marking
STUSB1600AQTR
Rev1.2+ECN
1.5 A
QFN24 EP 4x4 mm
1600A
page 58/66
STUSB1600
Revision history
Table 54. Document revision history
Date
Revision
30-Nov-2016
1
Changes
Initial release.
Updated: title, features, description and Table 1 in cover page.
05-Sep-2017
2
Updated Table 17, Table 20, Table 27, Table 31, Table 32, Table 35, Table 37, Table 38, Table 41,
Table 44, Table 48 and Table 49.
Updated Section 3.2.3, Section 5.1.4, Section 5.1.6, Section 5.1.12, Section 5.1.13, Section 5.1.19.
Updated: title, features, description and Table 1 in cover page.
22-Jun-2018
3
Updated Table 26. CC_CAPABILITY_CTRL register, Table 31. VBUS_DISCHARGE_TIME_CTRL
register, Table 36. STUSB1600 user-defined parameters and default settings, Table 37. Default
setting for a source type application, Table 40. Default setting for a sink type application, Table 43.
Default setting for a dual role type application and Table 49. Electrical characteristics.
Minor text changes.
10-Oct-2019
DS11503 - Rev 4
4
Updated Section 7.1.2 Connection to MCU or application processor and Table 49. Electrical
characteristics.
page 59/66
STUSB1600
Contents
Contents
1
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1
2
3
Block overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Inputs / outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.1
Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2
Pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.1
CC1 / CC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.2
CC1DB / CC2DB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.3
VCONN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.4
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.5
I²C interface pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.6
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.7
VBUS_VALID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.8
ATTACH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.9
DEBUG pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.10
A_B_SIDE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.11
VBUS_SENSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.12
VBUS_EN_SNK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.13
VBUS_EN_SRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.14
VREG_1V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.15
VSYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.16
VREG_2V7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.17
VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Features description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1
CC interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2
VBUS power path control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3
DS11503 - Rev 4
3.2.1
VBUS monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2.2
VBUS discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2.3
VBUS power path assertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
VCONN supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
page 60/66
STUSB1600
Contents
4
5
3.3.1
VCONN input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.2
VCONN application conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.3
VCONN monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.4
VCONN discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.5
VCONN control and status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.6
VCONN power switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4
Low power standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.5
Dead-battery mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.6
High voltage protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.7
Hardware fault management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.8
Accessory mode detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.8.1
Audio accessory mode detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.8.2
Debug accessory mode detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
I²C Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4.1
Read and write operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2
Timing specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.1
DS11503 - Rev 4
Register description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1.1
ALERT_STATUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1.2
ALERT_STATUS_MASK_CTRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1.3
CC_CONNECTION_STATUS_TRANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.1.4
CC_CONNECTION_STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1.5
MONITORING_STATUS_TRANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.6
MONITORING_STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.7
CC_OPERATION_STATUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1.8
HW_FAULT_STATUS_TRANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.1.9
HW_FAULT_STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1.10
CC_CAPABILITY_CTRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1.11
CC_VCONN_SWITCH_CTRL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.12
VCONN_MONITORING_CTRL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.13
VBUS_MONITORING_RANGE_CTRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.1.14
RESET_CTRL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
page 61/66
STUSB1600
Contents
6
7
5.1.16
VBUS_DISCHARGE_STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.1.17
VBUS_ENABLE_STATUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.1.18
CC_POWER_MODE_CTRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1.19
VBUS_MONITORING_CTRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.1
User-defined parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.2
Default start-up configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
7.2
9
VBUS_DISCHARGE_TIME_CTRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Start-up configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
7.1
8
5.1.15
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.1.1
Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.1.2
Connection to MCU or application processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
USB Type-C typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.2.1
Source type application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.2.2
Sink type application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.2.3
Dual role type application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
8.1
Absolute maximum ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.2
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.3
Electrical and timing characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
9.1
QFN-24 EP - pitch 0.50 mm - (4 x 4 mm) package information. . . . . . . . . . . . . . . . . . . . . . . . 55
9.2
Thermal information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
10
Terms and abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
11
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
DS11503 - Rev 4
page 62/66
STUSB1600
List of tables
List of tables
Table 1.
Table 2.
Pin functions list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Table 32.
Table 33.
Table 34.
Table 35.
Table 36.
Table 37.
Table 38.
Table 39.
Table 40.
Table 41.
Table 42.
Table 43.
Table 44.
Table 45.
Table 46.
Table 47.
Table 48.
Table 49.
Table 50.
Table 51.
I2C interface pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Debug pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
USB data MUX select. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conditions for VBUS power path assertion in source power role
Conditions for VBUS power path assertion in sink power role . .
Fault management conditions . . . . . . . . . . . . . . . . . . . . . . .
Orientation and current capability detection in sink power role .
Orientation detection in source power role. . . . . . . . . . . . . . .
Device address format . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Register address format . . . . . . . . . . . . . . . . . . . . . . . . . . .
Register data format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I²C timing parameters - VDD = 5 V . . . . . . . . . . . . . . . . . . . .
Register access legend . . . . . . . . . . . . . . . . . . . . . . . . . . .
STUSB1600 register map overview . . . . . . . . . . . . . . . . . . .
ALERT_STATUS register . . . . . . . . . . . . . . . . . . . . . . . . . .
ALERT_STATUS_MASK_CTRL register . . . . . . . . . . . . . . . .
CC_CONNECTION_STATUS_TRANS register . . . . . . . . . . .
CC_CONNECTION_STATUS register. . . . . . . . . . . . . . . . . .
MONITORING_STATUS_TRANS register . . . . . . . . . . . . . . .
MONITORING_STATUS register . . . . . . . . . . . . . . . . . . . . .
CC_OPERATION_STATUS register . . . . . . . . . . . . . . . . . . .
HW_FAULT_STATUS_TRANS register . . . . . . . . . . . . . . . . .
HW_FAULT_STATUS register . . . . . . . . . . . . . . . . . . . . . . .
CC_CAPABILITY_CTRL register . . . . . . . . . . . . . . . . . . . . .
CC_VCONN_SWITCH_CTRL register . . . . . . . . . . . . . . . . .
VCONN_MONITORING_CTRL register . . . . . . . . . . . . . . . .
VBUS_MONITORING_RANGE_CTRL register . . . . . . . . . . .
RESET_CTRL register . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VBUS_DISCHARGE_TIME_CTRL register . . . . . . . . . . . . . .
VBUS_DISCHARGE_STATUS register . . . . . . . . . . . . . . . . .
VBUS_ENABLE_STATUS register . . . . . . . . . . . . . . . . . . . .
CC_POWER_MODE_CTRL register . . . . . . . . . . . . . . . . . .
VBUS_MONITORING_CTRL register . . . . . . . . . . . . . . . . . .
STUSB1600 user-defined parameters and default settings . . .
Default setting for a source type application. . . . . . . . . . . . . .
Conditions for VBUS power path assertion in source power role
Source power role with accessory support. . . . . . . . . . . . . . .
Default setting for a sink type application . . . . . . . . . . . . . . .
Conditions for VBUS power path assertion in sink power role . .
Sink power role with accessory support . . . . . . . . . . . . . . . .
Default setting for a dual role type application . . . . . . . . . . . .
Conditions for VBUS power path assertion in source power role
Conditions for VBUS power path assertion in sink power role . .
Dual power role with accessory support . . . . . . . . . . . . . . . .
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . .
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .
QFN24-EP 4x4 mm package mechanical data . . . . . . . . . . .
Thermal information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DS11503 - Rev 4
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. 6
. 6
. 6
10
11
13
15
16
17
17
17
18
20
20
21
22
22
23
24
24
26
28
29
30
30
30
32
32
33
33
33
34
34
36
39
40
40
42
43
43
46
47
47
48
50
51
52
56
56
page 63/66
STUSB1600
List of tables
Table 52.
Table 53.
Table 54.
List of terms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
DS11503 - Rev 4
page 64/66
STUSB1600
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
DS11503 - Rev 4
Functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . .
STUSB1600 pin connections . . . . . . . . . . . . . . . . . . . . . . .
VCONN to CC1 and CC2 power switch protections . . . . . . . . .
Read operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I²C timing diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I²C register initialization sequence at power-up or after a reset
Implementation example in source type application . . . . . . . .
Implementation example in sink type application . . . . . . . . . .
Implementation example in dual role type application. . . . . . .
QFN-24 EP 4x4 mm package outline. . . . . . . . . . . . . . . . . .
QFN24 EP 4x4 mm recommended footprint . . . . . . . . . . . . .
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. 2
. 3
13
17
18
19
38
39
42
45
55
56
page 65/66
STUSB1600
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST
products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST
products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of
Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service
names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2019 STMicroelectronics – All rights reserved
DS11503 - Rev 4
page 66/66
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