19-5293; Rev 1; 3/11
TION KIT
EVALUA BLE
IL
AVA A
USB Host Charger Identification
Analog Switches
The MAX14566E/MAX14566AE/MAX14566BE are second-generation USB devices that combine Hi-Speed
USB analog switches with a USB host charger (dedicated
charger) identification circuit. These devices support both
the latest USB Battery Charging Specification Revision 1.2
including data contact detection and a set resistor bias
for Apple-compliant devices as well as legacy USB D+/Dshort detection using data line pullup. The MAX14566E
has a pMOSFET open-drain control output (CEN) and the
MAX14566AE has an nMOSFET open-drain control output
(CEN) to restart the peripheral connected to the USB host.
These devices feature high-performance Hi-Speed USB
switches with low 4pF (typ) on-capacitance and low 4.0I
(typ) on-resistance. In addition, the devices feature a
single digital input (CB) to switch between pass-through
mode and autodetection charger mode. The USB host
charger identification circuit allows a host USB port to
support USB chargers with shorted DP/DM detection
and to provide support for Apple-compliant devices
using a resistor bias on USB data lines. When an Applecompliant device is attached to the port in autodetection
charger mode, the devices supply the voltage to the DP
and DM lines from the internal resistor-divider. If a USB
Revision 1.2-compliant device is attached, the devices
short DP and DM to allow correct charger detection. The
MAX14566BE features an additional digital input (CB1)
to allow forced charger mode.
These devices have enhanced, high electrostatic discharge (ESD) protection on the DP and DM inputs up
to Q15kV Human Body Model (HBM). All the devices
are available in an 8-pin (2mm x 2mm) TDFN package,
and are specified over the -40NC to +85NC extended
temperature range.
EXTERNAL
POWER SUPPLY
5V SWITCHING
POWER SUPPLY
Features
S Hi-Speed USB Switching
S Low 4.0pF (typ) On-Capacitance
S Low 4.0I (typ) On-Resistance
S Ultra-Low 0.1I (typ) On-Resistance Flatness
S +2.8V to +5.5V Supply Range
S Ultra-Low 3µA (typ) Supply Current
S Automatic Current-Limit Switch Control
S Automatic USB Charger Identification Circuit
S ±15kV High ESD HBM Protection On DP/DM
S 2mm x 2mm, 8-Pin TDFN Package
S -40NC to +85NC Operating Temperature Range
Applications
Laptops
Netbooks
Universal Charger including iPodM/iPhoneM Chargers
Ordering Information/
Selector Guide
PINPACKAGE
CLS
CONTROL
TOP
MARK
MAX14566EETA+
8 TDFN-EP*
MAX14566AEETA+
8 TDFN-EP*
CEN
CEN
ADK
MAX14566BEETA+
8 TDFN-EP*
—
BMR
PART
ADJ
Note: All devices are specified over the -40°C to +85°C operating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
OVERCURRENT PROTECTOR
CEN
Typical Operating Circuit
USB A
APPLE DOCK
CONNECTOR
APPLE
DOCK
iPod
OR iPhone
Li+
BATTERY
LAPTOP CHIPSET
USB
TRANSCEIVER
STANDBY
TDM
TDP
DM
MAX14566E
PHONE OR MP3
PLAYER
VBUS
CEN
DP
CB
D-
USB
D+ A CONNECTOR
GND
USB A
MICRO B
MICRO-USB
CONNECTOR
iPhone and iPod are registered trademarks of Apple, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX14566E/MAX14566AE/MAX14566BE
General Description
MAX14566E/MAX14566AE/MAX14566BE
USB Host Charger Identification
Analog Switches
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
VCC, TDP, TDM, CB, DP, DM, CEN/CEN, CB1....-0.3V to +6.0V
Continuous Current into any Terminal.............................. Q30mA
Continuous Power Dissipation (TA = +70NC)
TDFN (derate 11.9mW/NC above +70NC).....................954mW
Operating Temperature Range........................... -40NC to +85NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................. -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (qJA)............84°C/W
Junction-to-Case Thermal Resistance (qJC).................37°C/W
Note 1: P
ackage thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VCC = 2.8V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 5.0V, TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLY (MAX14566E/MAX14566AE)
Power-Supply Range
VCC
VCB > VIH
2.8
5.5
V
VCB = 0V (Note 3)
4.75
5.25
V
VCB = VCC
Supply Current
ICC
VCB = 0V
Supply Current Increase
DICC
VCC = 3.3V
2
VCC = 5.5V
7
VCC = 4.75V
110
200
VCC = 5.25V
120
200
0 P VCB P VIL or VIH P VCB P VCC
FA
2
FA
POWER SUPPLY (MAX14566BE)
Power-Supply Range
Supply Current
Supply Current Increase
2
VCC
ICC
DICC
VCB = VCC and VCB1 = VCC or VCB = VCC
and VCB1 = 0V or VCB = 0V and
VCB1 = VCC
2.8
5.5
V
VCB = 0V and VCB1 = 0V (Note 3)
4.75
5.25
V
VCB = VCC and
VCB1 = VCC or
VCB = VCC and
VCB1 = 0V
VCC = 3.3V
2
VCC = 5.5V
7
VCB = 0V and
VCB1 = 0V
VCC = 4.75V
110
200
VCC = 5.25V
120
200
VCB = 0V and
VCB1 = VCC
VCC = 5.0V for TYP
VCC = 5.5V for MAX
3
7
VCB1 = 0V; 0 ≤ VCB ≤ VIL
and VIH ≤ VCB ≤ VCC (Note 4)
1
VCB = 0V; 0 ≤ VCB1 ≤ VIL
and VIH ≤ VCB1 ≤ VCC (Note 4)
1
mA
mA
USB Host Charger Identification
Analog Switches
MAX14566E/MAX14566AE/MAX14566BE
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.8V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 5.0V, TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog-Signal Range
VDP,VDM
On-Resistance TDP/TDM Switch
RON
On-Resistance Match Between
Channels TDP/TDM Switch
On-Resistance Flatness TDP/
TDM Switch
0
VCC
V
6.5
I
VDP = VDM = 0V to VCC, IDP = IDM = 10mA
4.0
DRON
VCC = 5.0V, VDP = VDM = 400mV,
IDP = IDM = 10mA
0.1
I
RFLAT
VCC = 5.0V, VDP = VDM = 0 to VCC,
IDP = IDM = 10mA
0.1
I
40
On-Resistance of DP/DM Short
RSHORT
VCB = 0V, VDP = 1V, IDP = IDM = 10mA
Off-Leakage Current
ITDPOFF,
ITDMOFF
VCC = 3.6V, VDP = VDM = 0.3V to 3.3V,
VTDP = VTDM = 3.3V to 0.3V, VCB = 0V
On-Leakage Current
IDPON,IDMON
VCC = 3.6V, VDP = VDM = 3.3V to 0.3V,
VCB = VCC
70
I
-250
+250
nA
-250
+250
nA
DYNAMIC PERFORMANCE
Turn-On Time
tON
VTDP or VTDM = 1.5V, RL = 300I,
CL = 35pF, Figure 1
20
100
Fs
Turn-Off Time
tOFF
VTDP or VTDM = 1.5V, RL = 300I,
CL = 35pF, Figure 1
1
5
Fs
RL = RS = 50I
60
ps
TDP, TDM Switch Propagation
Delay
tPLH, tPHL
Output Skew
tSK(O)
Skew between DP and DM when
connected to TDP and TDM,
RL = RS = 50I, Figure 2
40
ps
TDP, TDM Off-Capacitance
COFF
f = 1MHz
2.0
pF
DP, DM On-Capacitance
(Connected to TDP, TDM)
CON
f = 240MHz
4.0
-3dB Bandwidth
BW
RL = RS = 50I (Note 4)
1000
MHz
Off-Isolation
VISO
VTDP, VDP = 0dBm, RL = RS = 50I,
f = 250MHz, Figure 3 (Note 4)
-20
dB
Crosstalk
VCT
VTDP, VDP = 0dBm, RL = RS = 50I,
f = 250MHz, Figure 3 (Note 4)
-25
dB
5.5
pF
INTERNAL RESISTORS
DP/DM Short Pulldown
RPD
335
500
710
kI
RP1/RP2 Ratio
RTRP
1.485
1.5
1.515
Ratio
RP1 + RP2 Resistance
RRP
95
126
176
kI
RM1/RM2 Ratio
RTRM
0.843
0.85
0.865
Ratio
RM1 + RM2 Resistance
RRM
70
94
132
kI
45
46
47
%VCC
7.6
%VCC
COMPARATORS
DM1 Comparator Threshold
VDM1F
DM falling
DM1 Comparator Hysteresis
DM2 Comparator Threshold
1
VDM2F
DM falling
6.31
DM2 Comparator Hysteresis
DP Comparator Threshold
7
%
1
VDPR
DP rising
45
46
%
47
%VCC
3
MAX14566E/MAX14566AE/MAX14566BE
USB Host Charger Identification
Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.8V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 5.0V, TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
DP Comparator Hysteresis
TYP
MAX
1
UNITS
%
LOGIC INPUT (CB, CB1)
CB/CB1 Input Logic-High
VIH
CB/CB1 Input Logic-Low
VIL
CB/CB1 Input Leakage Current
1.4
IIN
VCC = 5.5V, 0V P VCB P VIL or
VIH P VCB P VCC
-1
CB = logic 0 to logic 1 or logic 1 to logic 0
0.5
V
0.4
V
+1
FA
2
s
CEN/CEN OUTPUTS
VBUS Toggle Time (MAX14566E/
MAX14566AE)
tVBT
CEN Output Logic-High Voltage
CB = logic 0 to logic 1, ISOURCE = 2mA
(MAX14566E only)
CEN Output Leakage Current
VCC = 5.5V, VCEN = 0V, CEN deasserted
(MAX14566E only)
CEN Output Logic-Low Voltage
CEN Output Leakage Current
1
VCC 0.4
V
1
FA
CB = logic 0 to logic 1, ISINK = 2mA
(MAX14566AE only)
0.4
V
VCC = VCEN = 5.5V, CEN deasserted
(MAX14566AE only)
1
FA
ESD PROTECTION
ESD Protection Level
(DP and DM Only)
VESD
HBM
Q15
kV
ESD Protection Level
(All Other Pins)
VESD
HBM
Q2
kV
Note 2: All units are 100% production tested at TA = +25NC. Specifications over temperature are guaranteed by design.
Note 3: The part is operational from +2.8V to +5.5V. However, in order to have the valid Apple resistor-divider network, the VCC
supply must stay within the range of +4.75V to +5.25V.
Note 4: Guaranteed by design.
Test Circuits/Timing Diagrams
VCC
VCC
LOGIC
INPUT
MAX14566E
MAX14566AE
MAX14566BE
VIN
D_
TD_
CB
LOGIC
INPUT
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 1. Switching Time
4
RL
RL + RON
VIL
50%
t OFF
VOUT
RL
VOUT = VIN
t r < 5ns
t f < 5ns
VIH
VOUT
CL
SWITCH
OUTPUT
0.9 x V0UT
0.9 x VOUT
0V
t ON
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
USB Host Charger Identification
Analog Switches
IN+
RS
MAX14566E
MAX14566AE
MAX14566BE
TDP
DP
OUT+
RISE-TIME PROPAGATION DELAY = tPLHX OR tPLHY
FALL-TIME PROPAGATION DELAY = tPHLX OR tPHLY
tSK(O) = |tPLHX - tPLHY| OR |tPHLX - tPHLY|
tSK(P) = |tPLHX - tPHLX| OR |tPLHY - tPHLY|
RL
IN-
RS
TDM
DM
OUTRL
CB
VCC
tINFALL
tINRISE
V+
90%
VIN+
50%
90%
50%
10%
0V
10%
V+
VIN-
50%
50%
0V
tOUTRISE
tPLHX
tOUTFALL
tPHLX
V+
90%
VOUT+
90%
50%
50%
10%
0V
10%
V+
50%
VOUT-
50%
0V
tPHLY
tPLHY
Figure 2. Output Signal Skew
5
MAX14566E/MAX14566AE/MAX14566BE
Test Circuits/Timing Diagrams (continued)
Test Circuits/Timing Diagrams (continued)
VCC
0V OR VCC
OFF-ISOLATION = 20log
NETWORK
ANALYZER
VCC
CB
50Ω
VIN
TDP
MAX14566E
MAX14566AE
MAX14566BE
MEAS
VOUT
DP*
VOUT
VIN
V
CROSSTALK = 20log OUT
VIN
50Ω
REF
50Ω
50Ω
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN TD_ AND "OFF" D_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
*FOR CROSSTALK THIS PIN IS DM.
Figure 3. Off-Isolation and Crosstalk
Typical Operating Characteristics
(VCC = 5V, TA = +25NC, unless otherwise noted.)
3.5
2.5
2.0
VCC = 5.5V
3.5
2.0
1.0
1.0
0.5
0.5
40
VCC = 2.8V
35
TA = -40°C
30
25
VCC = 5.5V
20
15
10
5
0
VTDP (V)
45
TA = +25°C
2.5
1.5
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
50
3.0
1.5
0
6
4.0
RON (I)
3.0
VCC = 3.3V
TA = +85°C
4.5
RON (I)
VCC = 2.8V
MAX14566E toc02
4.0
5.0
MAX14566E toc01
4.5
DP/DM SHORT ON-RESISTANCE
vs. SUPPLY VOLTAGE
ON-RESISTANCE vs. VTDP/TDM
MAX14566E toc03
TDP/TDM ON-RESISTANCE
vs. SUPPLY VOLTAGE
RON (I)
MAX14566E/MAX14566AE/MAX14566BE
USB Host Charger Identification
Analog Switches
0
0.5
1.0
1.5
2.0
2.5
VTDP/TDM (V)
3.0
3.5
4.0
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VDP (V)
USB Host Charger Identification
Analog Switches
6
ON-LEAKAGE
4
25
20
10
TA = +85°C
OFF-LEAKAGE
0
0
-45 -30 -15
0
15
30
45
60
75
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
90
SUPPLY CURRENT
vs. LOGIC LEVEL
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
VCC = 5.5V
140
120
100
80
60
40
20
0
0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3
24
22
20
18
16
14
12
10
8
6
4
2
0
tON
tOFF
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VCC (V)
LOGIC LEVEL (V)
LOGIC-INPUT THRESHOLD
vs. SUPPLY VOLTAGE
AUTODETECTION MODE
MAX14566E toc08
CB_RISING
TURN-ON/TURN-OFF TIME (µs)
VCC (V)
MAX14566E toc06
TEMPERATURE (°C)
160
ICC (µA)
3
1
5
LOGIC-INPUT THRESHOLD (V)
TA = +25°C
2
15
1.0
0.9
0.8
0.7
0.6
TA = -40°C
5
30
1.2
1.1
CB = VCC
MAX14566E toc07
35
VCC = 3.6V, VTDP = 3.3V
ICC (µA)
LEAKAGE CURRENT (nA)
40
MAX14566E toc04
45
MAX14566E toc05
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
TDP/DP LEAKAGE CURRENT
vs. TEMPERATURE
MAX14566E toc09
VCC = 5.0V, DP/DM HIGH IMPEDANCE,
CB LOGIC 1 TO LOGIC 0
DP
1V/div
DM
1V/div
CB_FALLING
0.5
0.4
0.3
0.2
0.1
CB
2V/div
0
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
10µs/div
VCC (V)
7
MAX14566E/MAX14566AE/MAX14566BE
Typical Operating Characteristics (continued)
(VCC = 5V, TA = +25NC, unless otherwise noted.)
Typical Operating Characteristics (continued)
(VCC = 5V, TA = +25NC, unless otherwise noted.)
AUTODETECTION MODE
AUTO RESET
MAX14566E toc10
MAX14566E toc11
VCC = 5.0V, DP/DM HIGH IMPEDANCE TO
0.5V AT DM
MAX14566E
CEN
2V/div
DP
500mV/div
0V
0V
DM
500mV/div
CB
2V/div
0V
0V
1ms/div
2s/div
AUTO RESET
MAX14566AE
CEN
2V/div
0V
CB
500mV/div
0V
2s/div
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
MAX14566E toc13
USB EYE DIAGRAM
MAX14566E toc12
DIFFERENTIAL SIGNAL (V)
MAX14566E/MAX14566AE/MAX14566BE
USB Host Charger Identification
Analog Switches
HI-SPEED USB TRANSMIT
TEMPLATE
-0.5
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
TIME (x 10n - 9)s
8
USB Host Charger Identification
Analog Switches
TOP VIEW
TOP VIEW
CB
TDM
TDP
VCC
CB
TDM
TDP
VCC
8
7
6
5
8
7
6
5
MAX14566E
MAX14566AE
MAX14566BE
*EP
*EP
1
2
3
4
1
2
3
4
CEN
(CEN)
DM
DP
GND
CB1
DM
DP
GND
TDFN
(2mm × 2mm)
( ) FOR MAX14566AE ONLY
TDFN
(2mm × 2mm)
*CONNECT EP TO GND.
Pin Description
PIN
NAME
FUNCTION
MAX14566E
MAX14566AE
MAX14566BE
—
1
—
CEN
nMOSFET Open-Drain Output, Current-Limit Switch (CLS) Control
Output. If CB changes from logic 0 to logic 1 or from logic 1 to
logic 0, CEN is low for 1s (typ).
1
—
—
CEN
Active-Low pMOSFET Open-Drain Output, Current-Limit Switch
(CLS) Control Output. If CB changes from logic 0 to logic 1 or
logic 1 to logic 0, CEN is high for 1s (typ).
—
—
1
CB1
Switch Control Bit. See Table 2.
2
2
2
DM
USB Connector D- Connection
3
3
3
DP
USB Connector D+ Connection
4
4
4
GND
Ground
5
5
5
VCC
Power Supply. Connect a 0.1FF capacitor between VCC and GND
as close as possible to the device.
6
6
6
TDP
Host USB Transceiver D+ Connection
7
7
7
TDM
Host USB Transceiver D- Connection
8
8
8
CB
Switch Control Bit. See Table 1.
CB = logic 0, charger mode
CB = logic 1 (PM), pass-through mode active, DP/DM connected
to TDP/TDM
—
—
—
EP
Exposed Pad. Connect EP to ground. Do not use EP as the only
ground connection.
9
MAX14566E/MAX14566AE/MAX14566BE
Pin Configuration
MAX14566E/MAX14566AE/MAX14566BE
USB Host Charger Identification
Analog Switches
Functional Diagram
VCC
VCC
MAX14566E
MAX14566AE
MAX14566BE
RP1
DP
RP2
RM1
DM
RM2
500kI
TDP
DP
0.46VCC
0.46VCC
DM1
DM2
0.07VCC
TDM
CB1*
CONTROL LOGIC
ONE SHOT
VCC
1s
VBIAS
CEN
(CEN)
CB
GND
( ) FOR MAX14566AE ONLY
*FOR MAX14566BE ONLY
Detailed Description
The MAX14566E/MAX14566AE/MAX14566BE are Hi-Speed
USB analog switches that support USB hosts to identify
the USB port as a charger port when the USB host is in
a low-power mode and cannot enumerate USB devices.
These devices feature high-performance Hi-Speed USB
switches with low 4pF (typ) on-capacitance and low
4I (typ) on-resistance. DP and DM can handle signals
between 0V and 6V with any supply voltage.
Resistor-Dividers
All the devices feature an internal resistor-divider for
biasing data lines to provide support for Apple-compliant
devices. When these devices are not operated with the
resistor-divider, they disconnect the resistor-dividers
10
from the supply voltage to minimize supply current
requirements. The resistor-dividers are not connected in
pass-through mode.
Switch Control
The MAX14566E/MAX14566AE feature a single digital
input, CB, for mode selection (Table 1). Connect CB to
a logic-level low voltage for autodetection charger mode
(AM). See the Autodetection section for more information. Connect CB to a logic-level high voltage for normal
high-speed pass-through mode (PM). The MAX14566BE
features dual digital inputs, CB and CB1, for mode selection (Table 2). Connect CB to a logic-level high for normal high-speed pass-through mode (PM). Connect CB
to a logic-level low for different charger-mode selection
USB Host Charger Identification
Analog Switches
Autodetection
All the devices feature autodetection charger mode for
dedicated chargers and USB masters. CB must be set
low to activate autodetection charger mode.
In autodetection charger mode, the MAX14566E monitors the voltages at DM and DP to determine the type of
the device attached. If the voltage at DM is +2.3V (typ)
or higher and the voltage at DP is +2.3V (typ) or lower,
the voltage stays unchanged.
If the voltage at DM is forced below the +2.3V (typ)
threshold, the internal switch disconnects DM and DP
from the resistor-divider and DP and DM are shorted
together for dedicated charging mode.
If the voltage at DP is forced higher than the +2.3V (typ)
threshold, the internal switch disconnects DM and DP
from the resistor-divider and DP and DM are shorted
together for dedicated charging mode.
Once the charging voltage is removed, the short between
DP and DM is disconnected for normal operation.
Automatic Peripheral Reset
The MAX14566E/MAX14566AE feature automatic currentlimit switch control output. This feature resets the peripheral connected to VBUS in the event the USB host switches to
or from standby mode. CEN/CEN provide a 1s (typ) pulse
on the rising or falling edge of CB (Figures 4, 5, and 6).
Table 1. Digital Input State (MAX14566E/MAX14566AE)
CB
MODE
DP/DM
COMMENT
0
AM
Autodetection Circuit Active
Auto Mode
INTERNAL RESISTOR-DIVIDER
Connected
1
PM
Connected to TDP/TDM
USB Traffic Active
Not Connected
Table 2. Digital Input State (MAX14566BE)
CB
CB1
MODE
0
0
AM
Auto Mode
STATUS
0
1
FM
Forced Dedicated-Charger Mode: DP/DM Shorted
1
X
PM
Pass-Through (USB) Mode: Connect DP/DM to TDP/TDM
X = Don't care.
USB PERIPHERAL
ATTACH
STANDBY
PM
CB
AM
AM
tVBT
CEN
VBUS
PM
5V
USB CONNECTION
CHARGING CURRENT
1000mA
500mA
1000mA
500mA
1000mA
Figure 4. MAX14566E Peripheral Reset Timing Diagram
11
MAX14566E/MAX14566AE/MAX14566BE
with CB1. Connect CB1 to a logic-level low for auto mode
(AM) or connect CB1 to a logic-level high for forced
dedicated-charger mode (FM).
MAX14566E/MAX14566AE/MAX14566BE
USB Host Charger Identification
Analog Switches
USB
TRANSCEIVER
TDM
VCC
TDP
0.1µF
GND
DP
D+
DM
D-
USB
CONNECTION
VBUS
150µF
VBUS
MAX14566E
VCC
CURRENT-LIMIT
SWITCH
+5V POWER
SUPPLY
EN
CEN
10kI
CLS EN
SYSTEM CONTROL
CB
STANDBY
GND
Figure 5. MAX14566E Peripheral Reset Applications Diagram
USB PERIPHERAL
ATTACH
STANDBY
PM
CB
AM
AM
tVBT
CEN
VBUS
PM
5V
USB CONNECTION
CHARGING CURRENT
1000mA
Figure 6. MAX14566AE Peripheral Reset Timing Diagram
12
500mA
1000mA
500mA
1000mA
USB Host Charger Identification
Analog Switches
TDM
VCC
TDP
0.1µF
GND
DP
D+
DM
D-
USB
CONNECTION
VBUS
150µF
VBUS
MAX14566AE
VCC
CURRENT-LIMIT
SWITCH
EN
1kI
+5V POWER
SUPPLY
CEN
10kI
CLS EN
SYSTEM CONTROL
CB
STANDBY
GND
Figure 7. MAX14566AE VBUS Discharge Circuit
Bus Voltage Discharge
The MAX14566AE automatic current-limit switch control
output can be used to discharge the VBUS during VBUS
reset. When the system controls the current-limit switch
for VBUS toggle, the output capacitor can be discharged
slowly depending upon the load. If fast discharge of the
VBUS capacitor is desired, the CEN output can be used
to achieve the fast discharge as shown in Figure 7.
Data Contact Detect
All the devices support USB devices that require detecting the USB data lines prior to charging. When a USB
Revision 1.2-compliant device is attached, the USB data
lines DP and DM are shorted together. The short remains
until it is detected by the USB device. This feature guarantees appropriate charger detection if a USB Revision
1.2-compliant device is attached. The autodetection
charger mode is activated after the data contact detect
is established. CB must be set low to activate data contact detect.
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents test
setup, test methodology, and test results.
Extended ESD Protection
(Human Body Model)
ESD-protection structures are incorporated on all pins
to protect against electrostatic discharges up to Q2kV
(HBM) encountered during handling and assembly. DP
and DM are further protected against ESD up to Q15kV
(HBM) without damage. The ESD structures withstand
high ESD both in normal operation and when the device
is powered down. After an ESD event, the device continues to function without latchup (Figure 8).
13
MAX14566E/MAX14566AE/MAX14566BE
USB
TRANSCEIVER
USB Host Charger Identification
Analog Switches
MAX14566E/MAX14566AE/MAX14566BE
Typical Application Circuit (MAX14566BE)
USB
TRANSCEIVER
TDM
TDP
TDM
TDP
VCC
0.1µF
GND
DP
D+
DM
D-
USB
CONNECTION
VBUS
MAX14566BE
150µF
VBUS
CB1
VCC
AM/FM
CB
+5V POWER
SUPPLY
CURRENT-LIMIT
SWITCH
EN
SYSTEM CONTROL
EN
PM
GND
HIGHVOLTAGE
DC
SOURCE
RC
1MΩ
RD
1.5kΩ
CHARGE-CURRENTLIMIT RESISTOR
DISCHARGE
RESISTANCE
CS
100pF
STORAGE
CAPACITOR
IPEAK (AMPS)
Ir
100%
90%
DEVICE
UNDER
TEST
Figure 8a. Human Body ESD Test Model
36.8%
10%
0
0
TIME
tRL
14
tDL
Figure 8b. Human Body Current Waveform
Chip Information
PROCESS: BiCMOS
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 TDFN-EP
T822+1
21-0168
90-0064
USB Host Charger Identification
Analog Switches
REVISION
NUMBER
REVISION
DATE
0
10/10
Initial release
1
3/11
Changed the USB Battery Charging Specification Revision 1.1 to Revision 1.2
DESCRIPTION
PAGES
CHANGED
—
1, 13
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the
Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2011
Maxim Integrated Products
15
Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAX14566E/MAX14566AE/MAX14566BE
Revision History
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