WUSB3801
WUSB3801
USB Type-C Configuration Channel
Flippable Adapter
http//:www.willsemi.com
Description
Features
The WUSB3801 is a Type-C Configuration Channel
(CC) Flippable Adapter chip with low power and high
efficiency.
The
WUSB3801
supports
USB Type-C Cable and Connector
Specification Release 1.2 compatible
channel
Global power saving and active mode
identification of USB Type-C connector and auto
Pin or I2C controllable
detection of different power roles based on chip
Support auto CC ports configuration
settings. This chip is compatible with USB Type-C
Support SRC/SNK/DRP power mode
Cable and Connector Specification Release 1.2 for
Support DRP with Try.SNK or Try.SRC
varies of applications.
Support different current model controls and
identifications (Default, 1.5A and 3.0A)
The WUSB3801 supports PIN control mode and I2C
control mode through CTRL pin settings, and re-uses
SDA (INOUT1)/SCL (INOUT2)/INTB (OUT3) pins to
and current source with high precision
realize necessary functions in different control modes.
ROLE pin is used for Source (SRC)/Sink (SNK)/Dual
Role Power (DRP) mode selection of Type-C logic
Accurate internal CC termination resistance
High voltage EOS protection and DC 25V
tolerance on CC1, CC2 and VBUSD pins
Wide single power supply range: 2.7 ~ 5.5V
QFN1616-12L packaging available
working state. The global enable signal comes from
(1.6x1.6x0.35mm)
ENB pin with internal pull-up resistor for more
Order Information
feasibility.
Applications
Smart-phones
Laptops
Tablets
Will Semiconductor Ltd.
1
Device
Package
Shipping
WUSB3801Q-12/TR
QFN1616-12L
3000/Reel&Tape
Jul, 2016 - Rev. 1.1
WUSB3801
Revision History
Version
Date
Owner
Description
0.0
2015-03
Y. Shen
Initial draft
0.1
2015-03
Y. Shen
Support high voltage mode and ENB as global reset
0.2
2015-04
Y. Shen
Type-C 1.1 compatible
0.3
2015-08
Y. Shen
0.4
2015-10
Y. Shen
Support DRP with Try.SNK or Try.SRC
0.5
2015-11
Y. Shen
WUSB3801QB marking change from B* to G*
0.6
2015-11
Y. Shen
Add recommend land pattern
Update Ihost from 110μA to 122.5μA.
Update Idevice from 28μA to
22.5μA
Type-C 1.2 compatible
Add general marking M
Use a clear function description for ID pin
Update high voltage DC from 20V to 25V
Update ESD HBM from 3500V to ±4000V
Update ESD CDM from 1500V to ±1500V
Update USB Max tri-state input threshold from VDD-0.5 to 2.9V
Update VH and VL for logic threshold voltage from 0.8*VDD to 1.05V
1.0
2016-05
X. Chen
and from 0.2*VDD to 0.4V
Update Vth_BUS from 0.78*VDD to 3.2V
Update Ihost max from 140μA to 160μA
Correct figures for threshold of Comparison and Status
Relationship
Update all state diagrams based on chip functions
Refine all descriptions and diagrams
Remove repetitious descriptions as those in USB Type-C
Specification
Will Semiconductor Ltd.
2
Jul, 2016 - Rev. 1.1
WUSB3801
Pin Configuration (Top View)
Marking Information
VDD
ENB
GND
ID
12
11
10
9
12
11
10
9
Pin1 Dot by Marking
1
8
CC2
2
7
SDA/
INOUT1
2
7
3
4
5
6
INTB/
OUT3
SCL/
INOUT2
CTRL
8
VBUSD
1
ROLE
CC1
3
5
4
6
A
= Device Code
*
= Month Code (A~Z)
VDDVDD
VDD
VBUS
Will Semiconductor Ltd.
3
GND
TX2+
TX2VBUS
RX1+
ID
GND
TX1-
VDD
VBUS
CC2
CC1
TX1+
PMIC
CC Logic
&Configuration
GND
SDA
SCL
TYPE-C CONNECTOR
TX1±
RX1±
CC1
ADDR
2
D+
INTB
2
0
CC2
VDD
D+
Redriver
2
D-
2
VBUS
TX±
RX±
SBU2
2
TX2±
RX2±
SBU1
2
USB3
MUX(switch)
Processor
2
VBUS
RX2+
2
1
RX2-
SW
D-
USB2
D±
RX1-
2
GND
Application Block Diagram
Jul, 2016 - Rev. 1.1
WUSB3801
Pin Descriptions
Table 1. Pin Descriptions
Pin
Name
Type
1
CC1
I/O
2
CC2
I/O
3
ROLE
AI
Tri-state input control signal for
working mode selection
Floating - DRP
VDD - SRC
GND - SNK
4
VBUSD
AI
VBUS detection and high voltage
protection: DC 25V
AC lighting surge
Detect VBUS voltage
Tri-state input control signal for PIN or
I2C control mode selection
Floating - PIN control mode
VDD - I2C control mode with
control address 7b’1101000
GND - I2C control mode with
control address 7b’1100000
5
CTRL
AI
6
INTB/
OUT3
DO
7
SDA/
INOUT1
I/O
Function
Type-C CC logic channel signal
High voltage EOS protection
Type-C CC logic channel signal
High voltage EOS protection
Interruption output signal for I2C control
mode
OUT3:
Audio Acc. connection indification
I2C data input/output;
INOUT1 and INOUT2 combined to
identify the charging current mode
when a SRC/SNK is connected
8
SCL/
INOUT2
I/O
I2C clock input;
INOUT1 and INOUT2 combined to
identify the charging current mode
when a SRC/SNK is connected
9
ID
AO
Open drain output signal for SRC or
DRP operating as SRC
10
GND
G
Global ground
11
ENB
AI
Global enable signal
12
VDD
P
Power
Will Semiconductor Ltd.
4
Comments
Start from SNK when power on
Start from SNK when power on
INTB output Low active
H - No connection
L - Audio Acc. connected
INOUT2 and INOUT1 in PIN
control mode indifications
2b’11 – Default
2b’10 - 1.5A
2b’00 - 3.0A
2b’01 - No connection
Output Low when detects CC
channel is connected as SRC
or DRP operating as SRC
-
H - Power saving
L - Active
2.7 ~ 5.5V
Jul, 2016 - Rev. 1.1
WUSB3801
Block Diagram
Host current
ctrl
GND
ENB
CTRL LOGIC
VDD
BGR
Port setting
SRC/SNK/DRP
Cal.
80uA±20%
180uA±8%
330uA±8%
CC1
Vref
2
/
4
/
CC1
ROLE
5.1kΩ ±10%
CTRL
I/O
CTRL
SDA (out1)
SCL (out2)
INTB (out3)
CC2
Vbusd
I2C
2
/
CC2
Register
Vref
VDD
VBUSD
CC2
CC1
COMP
5.1kΩ ±10%
Vbusd
ID
Will Semiconductor Ltd.
5
Jul, 2016 - Rev. 1.1
WUSB3801
Absolute Maximum Ratings
Table 2. Absolute Maximum Ratings
Symbol
Description
Range
Unit
VBUSD
VBUS pin voltage
-0.3 ~ 25
V
VCCx
CC pin voltage
-0.3 ~ 25
V
VDD
Power supply
-0.3 ~ 6.0
V
VIO
Input IO voltage
-0.3 ~ 3.6
V
Tsto
Storage temperature
-65 ~ 150
˚C
VHBM
ESD HBM
±4000
V
VCDM
ESD CDM
±1500
V
The range is for stress ratings only. Stress exceeding the range specified in the Absolute Maximum Ratings
may cause substantial damage to the device. Prolonged exposure to extreme conditions within the range may
also affect device reliability.
Recommended Operation Conditions
Table 3. Recommended Operation Conditions
Symbol
Description
Test Condition
Min.
Typ.
Max.
Unit
2.7
-
5.5
V
VDD
Power supply
-
VEN_L
ENB pin Low voltage level
VDD=3.6V
-
-
0.4
V
VEN_H
ENB pin High voltage level
VDD=3.6V
1.15
-
-
V
VID_L/
VINTB_L
ID/INTB pin Low voltage
level
Open drain output
VDD=3.6V
ISink= -2mA
-
-
0.4
V
VIO3_th
USB tri-state input
threshold
VDD=3.6V
0.7
-
2.9
V
Tj
Junction temperature
-
-40
-
125
˚C
Will Semiconductor Ltd.
6
Jul, 2016 - Rev. 1.1
WUSB3801
Electronics Characteristics (VDD=3.6V, Ta=25oC, unless otherwise noted)
Table 4. Electrical Characteristics
Parameters
Symbol
Test Conditions
ENB=Low
CC pins unattached
Active current
IDD_active
Min.
Typ.
Max.
Unit
-
22.5
45
μA
-
122.5
160
μA
ENB=Low
In Attached.SRC state
Default current mode
Power saving
IDD_disab
ENB=High
-
-
1
μA
Logic threshold
VH
VDD=3.6V
1.05
-
-
V
voltage
VL
VDD=3.6V
-
-
0.4
V
IH
3.0A mode setting
304
330
356
μA
IM
1.5A mode setting
166
180
194
μA
ID
Default mode setting
64
80
96
μA
Rd
-
4.6
5.1
5.6
kΩ
Vth_H
3.0A mode setting
1.16
1.23
1.31
V
Vth_M
1.5A mode setting
0.61
0.66
0.70
V
Vth_D
Default mode setting
0.15
0.2
0.25
V
Vth_BUS
VDD=3.6V
2.9
3.2
3.5
V
current
Current source
Resistor load
Comparator
threshold voltage
VBUS detection
threshold voltage
Will Semiconductor Ltd.
7
Jul, 2016 - Rev. 1.1
WUSB3801
Function Descriptions
General Description
The WUSB3801 is a Type-C Configuration Channel Flippable Adapter chip with low power and high efficiency.
The WUSB3801 supports channel identification of USB Type-C connector and auto detection of different
power roles based on chip settings. It has high voltage protection circuits on CC1/CC2/VBUSD pins and
supports both DC up to 25V and AC lighting surge. This chip is compatible with USB Type-C Cable and
Connector Specification Release 1.2 for varies of applications.
Logic Control Block
The logic control block receives the outer control signals, detects CC connection status using voltage level
comparisons of CC pins for different connection topologies and settings, and outputs the detected information
of communication path. Comparison results showing CC signals voltage range are sent to logic control block
for state machine and then the connection status of related working mode will be identified. When connection
status changes, the logic control block will update outputs of pins and registers. The figures as below show
the boundaries of status.
Threshold of Comparison and Status Relationship
VDD
2.7~5.5V
VDD
No Connection
2.7~5.5V
Not Valid
2.6V
2.04V
Below 2.6V
Connection
for 330µA
3.0A
1.23V
1.6V
1.5A
Below 1.6V
Connection
for 80/180µA
0.66V
Default
0.2V
No Connection
0V
0V
Source
Will Semiconductor Ltd.
Sink
8
Jul, 2016 - Rev. 1.1
WUSB3801
Work Mode Feature
According to CC connection status and detection results, the chip can work as SRC (Host), SNK (Device) or
DRP mode which are shown in the following figures.
SRC State Diagram
Directed from
any state
AudioAccessory
AudioAcc Removed
Unattached.SRC
DebugAcc Removed
Connection
Detected
Connection
Removed
AudioAcc
Detected for
tCCDebounce
DebugAcc
Removed
DebugAcc
Detected for
tCCDebounce
AttachWait.SRC
DebugAccessory
Sink Detected for
tCCDebounce
Sink
Removed
Attached.SRC
SNK with Accessory Support State Diagram
Directed from
any state
Accessory
Toggle
Dead
Battery
Unattached.SNK
VBUS
Removed
Connection
Detected
Connection
Removed
Unattached.
Accessory
AudioAcc or
DebugrAcc
Detected
Accessory
Toggle
Accessory
Removed
AudioAcc
Removed
AudioAccessory
AttachWait.
Accessory
AudioAcc
Detected for
tCCDebounce
DebugAcc
Detected for
tCCDebounce
AttachWait.SNK
DebugAcc
Removed
Source
Detected for
tCCDebounce
and VBUS
Detected
DebugAccessory
Attached.SNK
Will Semiconductor Ltd.
9
Jul, 2016 - Rev. 1.1
WUSB3801
DRP with Accessory and Try.SRC Support State Diagram
DebugAcc
Removed
Directed from
any state
DebugAccessory
AudioAcc Removed
DRP Toggle
Unattached.SRC
Dead
Battery
DRP Toggle
Connection
Detected
AudioAccessory
Unattached.SNK
Connection
Detected
AttachWait.SNK
Connection
Removed
Connection Removed
for tPDDebounce
Source Detected
for tCCDebounce
and VBUS
Detected
VBUS
Removed
Attached.SNK
AttachWait.SRC
DebugAcc
Detected for
tCCDebounce
Sink Detected for
tCCDebounce
Sink Detected for
tPDDebounce
Try.SRC
Source Detected
for tCCDebounce
and VBUS
Detected
AudioAcc
Detected for
tCCDebounce
Source not
Detected for
tPDDebounce
Sink
Removed
tDRPTry and
no Sink
Detected
Attached.SRC
Sink
Removed
TryWait.SNK
Source Detected
for tCCDebounce
and VBUS Detected
DRP with Accessory and Try.SNK Support State Diagram
DebugAcc
Removed
DebugAccessory
Directed from
any state
Directed from
any state
AudioAcc Removed
DRP Toggle
Unattached.SRC
Dead
Battery
DRP Toggle
Connection
Detected
AudioAccessory
Unattached.SNK
Connection
Detected
Try.SNK
AttachWait.SNK
VBUS
Removed
Source Detected
for tCCDebounce
and VBUS
Detected
Attached.SNK
Will Semiconductor Ltd.
Connection
Removed
Connection Removed
for tPDDebounce
Source
Detected for
tPDDebounce
and VBUS
Detected
tDRPTry
and Sink not
Detected
AudioAcc
Detected for
tCCDebounce
AttachWait.SRC
Sink
Detected
for
tCCDebounce
Source not
Detected for
tPDDebounce
after tDRPTry
TryWait.SRC
Sink
Removed
DebugAcc
Detected for
tCCDebounce
Sink Detected for
tCCDebounce
Attached.SRC
Sink Detected
for tPDDebounce
10
Jul, 2016 - Rev. 1.1
WUSB3801
Communication Interfaces
I2C Interface
The chip can take communications over I2C bus which supports up to 400 kHz clock when CTRL pin is not
floating (connected to VDD or GND). Two setting values would result in different I2C device addresses as
shown in Table 7.
Table 7. Address Table Controlled by CTRL Pin
Pin Setting
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Address 1
VDD
1
1
0
1
0
0
0
Address 2
GND
1
1
0
0
0
0
0
I2C Bus Timing
I2C BUS Timing Diagram
Will Semiconductor Ltd.
11
Jul, 2016 - Rev. 1.1
WUSB3801
Electrical Characteristics of I2C
Table 8. Electrical Characteristics of I2C
Symbol
fSCL
Test
Parameter
SCL clock frequency
2
Min.
Typ.
Max.
Unit
-
-
-
400
kHz
3.6
V
Conditions
VDD_I2C
Power supply range for I C
-
1.65
-
VIH
Logic high level voltage (Note 1)
-
1.2
-
VIL
Logic low level voltage (Note 1)
-
-
-
0.4
V
Isink
Sink current at low level (open drain) (Note 1)
-
-
1.6
-
mA
-
1.3
-
-
μs
-
0.6
-
-
μs
tBUF
tHD_STA
Bus free time between a STOP and START
condition
Hold time START condition. After this
period, the first clock pulse is generated
V
tLOW
LOW period of the SCL clock
-
1.3
-
-
μs
tHIGH
HIGH period of the SCL clock
-
0.6
-
-
μs
tSU_STA
Set-up time for a repeated START condition
-
0.6
-
-
μs
-
0
-
-
μs
tHD_DAT
Data hold time between SDA and SCL
falling edge
tSU_DAT
Data set-up time
-
100
-
-
ns
tr
Rise time for SDA and SCL signals (Note 2)
-
-
-
300
ns
tf
Fall time for SDA and SCL signals (Note 2)
-
-
-
300
ns
tSU_STO
Set-up time for STOP condition
-
0.6
-
-
μs
Tdeg
Width of deglitch at input termination
SCL
-
200
-
ns
SDA
-
250
-
ns
Cb
Capacitive load for each bus line
-
-
-
400
pF
Note 1: Guaranteed by design
Note 2: tr and tf are timing from 0.3*VDD to 0.7*VDD
Will Semiconductor Ltd.
12
Jul, 2016 - Rev. 1.1
WUSB3801
I2C Register Map
Table 9. I2C Register Map
Addr.
Register
Type
01H
Device ID
R
02H
Control
R/W
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Version ID: 00010
Try
Current
Support
SNK/SRC
Mode (SRC)
1: No
Bit0
Vendor ID: 110
Acc.
0: Yes
Bit1
Work Mode
01: Try.SNK
00: Default
00: SNK
10: Try.SRC
01: 1.5A
01: SRC
00/11: No Try
10: 3.0A
10: DRP
Interruption
Control
1
Detach/Attach
03H
Interruption
R/
Reserved
Clear
00:No Interruption
01:Attached
10:Detached
VBUS
Detection
as SNK
04H
CC Status
R
0: VBUS
not
detected
1: VBUS
detected
Charging
Current
Plugged Port Status
Detection as
Plug Orientation
SNK
00: Standby
01: Default
10: 1.5A
11: 3.0A
000: Standby
00: Standby
001: SNK
01: CC1 connected
010: SRC
10: CC2 connected
011: Audio Accessory
11: CC1 and CC2
100: Debug Accessory
connected
Function Description
Registers are used for read/write settings in I2C control mode.
Status of USB Type-C connector is detected and updated in register map automatically by internal state
machine. When any update occurs in register map after the last I2C reads, the chip would keep the
interruption pin (INTB) at low level. Otherwise, the chip would cancel the interruption signal (INTB=1).
Will Semiconductor Ltd.
13
Jul, 2016 - Rev. 1.1
WUSB3801
Typical Application Schematics
DRP Mode for I2C Control with USB2.0
DRP Mode for I2C Control with USB3.0/3.1
Will Semiconductor Ltd.
14
Jul, 2016 - Rev. 1.1
WUSB3801
Package Outline Dimensions
QFN1616-12L
Top View
Bottom View
Symbol
Side View
Dimensions in millimeter
MIN.
NOM.
MAX.
A
0.30
0.35
0.40
A1
0.00
0.02
0.05
A3
0.127 Ref.
b
0.15
0.20
0.25
D
1.55
1.60
1.65
E
1.55
1.60
1.65
e
0.40 BSC.
L
0.25
0.30
0.35
L1
0.45
0.50
0.55
Will Semiconductor Ltd.
15
Jul, 2016 - Rev. 1.1
WUSB3801
Recommend Land Pattern
All dimensions are in millimeters
Will Semiconductor Ltd.
16
Jul, 2016 - Rev. 1.1
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