MAXIM MAX14618ETA+T

19-5957; Rev 3; 5/12
MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
General Description
Benefits and Features
The MAX14600–MAX14605 and MAX14618 are third-generation USB 2.0 host charger identification devices that
combine USB Hi-Speed analog switches with a USB adapter
emulator circuit.
SImproved Charger Interoperability
USB CDP Emulation in S0 State
Meets New USB Battery Charging (BC) Revision
1.2 Specification
Backward Compatible with Previous USB BC
Revisions
Meets China YD/T1591-2009 Charging Specification
Supports Standby Mode Charging for Apple and
BC Revision 1.2-Compatible Devices
The devices support pass-through mode and auto mode.
In charging downstream port (CDP) pass-through mode,
the devices emulate the CDP function while supporting
normal USB traffic. The MAX14600/MAX14603/MAX14605
have a pFET open-drain output (CEN), and the MAX14601/
MAX14604/MAX14618 have an nFET open-drain output
(CEN) to restart the peripheral connected to the USB host.
All the devices support the CDP and standard downstream port (SDP) charging during the active state (S0)
and support the dedicated charging port (DCP) charging during the standby state (S3/S4/S5). The MAX14603/
MAX14604/MAX14605/MAX14618 support remote wakeup in standby mode. The MAX14602/MAX14605 offer
backward-compatible CDP emulation upgrade to the
MAX14566E.
The MAX14600–MAX14605/MAX14618 are available in
an 8-pin (2mm x 2mm) TDFN package, and are specified
over the -40NC to +85NC extended temperature range.
Applications
USB Host Data/Chargers
including:
Laptop and Desktop
Computers
USB Hubs
Flat-Panel Displays with
USB
Media Players
SGreater User Flexibility
CB0 and CB1 Pins Control Multiple Automatic
and Manual Charger States
SHigh Level of Integrated Features
Supports Remote Wake-Up (MAX14603/
MAX14604/MAX14605/MAX14618)
Low-Capacitance USB 2.0 Hi-Speed Switch to
Change Charging Modes
Automatic Current-Limit Switch Control
SSave Space on Board
2mm x 2mm, 8-Pin TDFN Package
Ordering Information/Selector Guide appears at end of data
sheet.
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX14600.related.
Game Consoles
Typical Operating Circuit
5V
SWITCHING
POWER SUPPLY
EXTERNAL
POWER
SUPPLY
OVERCURRENT
PROTECTOR
CEN
USB A
Li+
BATTERY
EMBEDDED
CONTROLLER
STANDBY
CB0
DM
CDP/FM
CB1
DP
APPLE
DOCK
iPod®
OR
iPhone®
PHONE OR MP3
PLAYER
VBUS
CEN
MAX14600
APPLE DOCK
CONNECTOR
D-
USB A
D+ CONNECTOR
GND
USB A
MICRO B
MICRO-USB
CONNECTOR
LAPTOP CHIPSET
USB
TRANSCEIVER
TDM
TDP
iPhone and iPod are registered trademarks of Apple, Inc.
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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.
MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
ABSOLUTE MAXIMUM RATINGS
All voltages referenced to GND.
VCC, TDP, TDM, CB0, CB1, DP, DM, CEN, CEN..... -0.3V to +6.0V
Continuous Current into Any Terminal............................. Q30mA
Continuous Power Dissipation (TA = +70NC)
TDFN (derate 11.9mW/NC above +70NC)..................953.5mW
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 (BJA)...........84NC/W
Junction-to-Case Thermal Resistance (BJC)................37NC/W
Note 1: Package 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 = 3.0V 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
Power-Supply Range
VCC
Supply Current
ICC
VCB0 > VIH
3.0
5.5
VCB0 = 0V (Note 3)
4.75
5.25
VCB0 = VCB1 = VCC = 5.25V, CM mode
VCB0 = VCC = 5.25V, VCB1 = 0V, PM mode
50
100
4
20
VCB0 = 0V, VCB1 = VCC = 5.25V, FM mode
10
50
VCB0 = 0V, VCB1 = VCC = 5.25V (MAX14618)
130
200
VCB0 = VCB1 = 0V, AM mode
130
200
V
FA
ANALOG SWITCH
Analog-Signal Range
VDP, VDM
0
VTDP = VTDM = 0V to VCC, ITDP = ITDM =
10mA
3.5
VCC
V
6.5
I
On-Resistance TDP/TDM Switch
RON
On-Resistance Match Between
Channels TDP/TDM Switch
DRON
VCC = 5.0V, VDP = VDM = 400mV,
IDP = IDM = 10mA
0.1
I
On-Resistance Flatness
TDP/TDM Switch
RFLAT
VCC = 5.0V, VDP = VDM = 0 to VCC,
IDP = IDM = 10mA
0.1
I
70
On-Resistance of DP/DM Short
RSHORT
VCB0 = 0V, VCB1 = VCC, VDP = 1V, RDM
= 20kW
Off-Leakage Current
ITDPOFF,
ITDMOFF
VCC = 3.6V, VDP = VDM = 0.3V to 3.3V,
VTDP = VTDM = 3.3V to 0.3V
On-Leakage Current
IDPON,
IDMON
VCC = 3.6V, VDP = VDM = 3.3V to 0.3V,
VCB_ = VCC
120
I
-250
+250
nA
-250
+250
nA
800
Fs
DYNAMIC PERFORMANCE (Note 4)
Turn-On Time
tON
VTDP or VTDM = 1.5V, RL = 300I,
CL = 35pF, VIH = VCC, VIL = 0V, Figure 1
300
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.0V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 5.0V, TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
Turn-Off Time
tOFF
TDP, TDM Switch Propagation
Delay
tPLH, tPHL
Output Skew
tSK
CONDITIONS
MIN
TYP
MAX
UNITS
VTDP or VTDM = 1.5V, RL = 300I,
CL = 35pF, VIH = VCC, VIL = 0V, Figure 1
(Note 5)
1
5
Fs
RL = RS = 50I
60
ps
Skew between DP and DM when
connected to TDP and TDM,
RL = RS = 50I, Figure 2
40
ps
pF
TDP, TDM Off-Capacitance
COFF
f = 1MHz, VBIAS = 0V, VIN = 500mVP-P
2.0
DP, DM On-Capacitance
(Connected to TDP, TDM)
CON
f = 240MHz, VBIAS = 0V, VIN = 500mVP-P
4.0
-3dB Bandwidth
BW
Off-Isolation
VISO
RL = RS = 50I
VTDP or VDP = 0dBm, RL = RS = 50I,
f = 250MHz, Figure 3
Crosstalk
VCT
VTDP or VDP = 0dBm, RL = RS = 50I,
f = 250MHz, Figure 3
5.5
pF
1000
MHz
-20
dB
-25
dB
DPC INTERNAL RESISTORS
DP/DM Short Pulldown
RPD
320
500
730
kI
RP1/RP2 Ratio
RTRP
1.4
1.5
1.55
—
RP1 + RP2 Resistance
RRP
85
125
170
kI
RM1/RM2 Ratio
RTRM
0.85
0.86
0.87
—
RM1 + RM2 Resistance
RRM
60
93
125
kI
41
42
%VCC
7.6
%VCC
47
%VCC
DPC COMPARATORS (Note 4)
DM1 Comparator Threshold
VDM1F
DM falling
40
VDM2F
DM falling
6.31
7
VDPR
DP rising
45
46
DM1 Comparator Hysteresis
1
DM2 Comparator Threshold
DM2 Comparator Hysteresis
%
1
DP Comparator Threshold
DP Comparator Hysteresis
%
1
%
CDP INTERNAL RESISTORS
DP Pulldown Resistor
RDP_DWN
14.25
24.8
kI
DM Pulldown Resistor
RDM_DWN
14.25
24.8
kI
0.5
0.7
V
CDP LOW-SPEED COMPARATORS
VDM_SRC Voltage
VDM_SRC
VDAT_REF Voltage
VDAT_REF
0.25
0.4
V
VLGC
0.8
2.0
V
50
150
FA
VLGC Voltage
IDP_SINK Current
IDP_SINK
ILOAD = 0 to 200FA
VDP = 0.15V to 3.6V
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.0V 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
LOGIC INPUTS (CB0, CB1)
CB0/CB1 Input Logic-High
VIH
CB0/CB1 Input Logic-Low
VIL
1.4
CB0/CB1 Input Leakage Current
IIN
VCC = 5.5V, 0V P VIN P VIL or
VIH P VIN P VCC
-1
tVBT
CB0 = VIL to VIH or VIH to VIL
1
V
0.4
V
+1
FA
3
s
CEN/CEN OUTPUTS
VBUS Toggle Time
2
VCC 0.4
CEN Output Logic-High Voltage
CB0 = VIL to VIH, ISOURCE = 2mA
CEN Output Leakage Current
CEN Output Logic-Low Voltage
VCC = 5.5V, VCEN = 0V, CEN deasserted
CB0 = VIL to VIH, ISINK = 2mA
CEN Output Leakage Current
VCC = VCEN = 5.5V, CEN deasserted
V
1
FA
0.4
V
1
FA
ESD PROTECTION
ESD Protection Level
VESD
HBM
kV
Q2
Note 2: All units are 100% production tested at TA = +25NC. Specifications over temperature are guaranteed by design.
Note 3: The device is operational from 3.0V to 5.5V. However, to have the valid Apple resistor-divider network, the VCC supply
must stay within 4.75V to 5.25V.
Note 4: Guaranteed by design.
Note 5: Does not include the delay by the state machine.
Test Circuits/Timing Diagrams
VCC
VCC
VIN
MAX14600–
MAX14605/MAX14618
D_
TD_
CB0
LOGIC
INPUT
LOGIC
INPUT
CB1*
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
RL + RON
VIL
50%
VOUT
RL
VOUT = VIN
t r < 5ns
t f < 5ns
VIH
t OFF
CL
VOUT
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.
*NOT AVAILABLE ON MAX14602/MAX14605.
Figure 1. Switching Time
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Test Circuits/Timing Diagrams (continued)
MAX14600–
MAX14605/MAX14618
RS
IN+
TDP
DP
OUT+
RISE-TIME PROPAGATION DELAY = tPLHX OR tPLHY
FALL-TIME PROPAGATION DELAY = tPHLX OR tPHLY
tSK = |tPLHX - tPLHY| OR |tPHLX - tPHLY|
RL
RS
IN-
TDM
DM
OUTRL
CB0
*NOT AVAILABLE ON MAX14602/MAX14605.
CB1*
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
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Test Circuits/Timing Diagrams (continued)
VCC
0V OR VCC
VCC
CB0
TDP
CB1**
MAX14600–
MAX14605/MAX14618
V
OFF-ISOLATION = 20log OUT
VIN
NETWORK
ANALYZER
DP*
50Ω
VIN
VOUT
MEAS
50Ω
V
CROSSTALK = 20log OUT
VIN
50Ω
REF
50Ω
GND
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.
**NOT AVAILABLE ON MAX14602/MAX14605.
Figure 3. Off-Isolation and Crosstalk
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VTDP/ TDM
4.0
2.0
VCC = 5.5V
2.5
2.0
TA = -40°C
1.5
50
30
1.0
20
0.5
0.5
10
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
1.0
1.5
2.0
2.5
TDP/ DP LEAKAGE CURRENT
vs. TEMPERATURE
50
TA = -40°C
30
20
60
VDP (V)
0
1
2
3
4
5
ON-LEAKAGE
70
CB0 = CB1 = VCC
60
50
50
40
30
TA = +85°C
40
TA = -40°C
30
20
20
TA = +25°C
10
OFF-LEAKAGE
0
6
SUPPLY CURRENT vs. SUPPLY VOLTAGE
VCC = 3.6V, VTDP = 3.3V
10
10
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
MAX14600 toc05
70
4.0
ICC (µA)
60
TA = +25°C
80
LEAKAGE CURRENT (nA)
70
-45 -30 -15
0
15
30
45
60
75
0
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
85
VCC (V)
SUPPLY CURRENT vs. LOGIC LEVEL
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
LOGIC-INPUT THRESHOLD
vs. SUPPLY VOLTAGE
140
120
100
80
60
40
400
350
300
250
150
100
50
0
0
1.0
1.5
2.0
LOGIC LEVEL (V)
2.5
3.0
tOFF
200
20
0.5
tON
450
1.2
LOGIC-INPUT THRESHOLD (V)
160
500
TURN-ON/ TURN-OFF TIME (µs)
VCC = 5.5V
MAX14600 toc08
TEMPERATURE (°C)
MAX14600 toc07
VDP/DM (V)
180
0
3.5
DP/ DM SHORT ON-RESISTANCE
vs. TEMPERATURE
80
0
3.0
VTDP/ TDM (V)
TA = +85°C
40
0.5
VTDP/ TDM (V)
VCC = 5.5V, ID_ = 10mA
90
0
MAX14600 toc04
100
VCC = 5.5V
40
1.0
0
RON (I)
TA = +25°C
MAX14600 toc06
2.5
60
TA = +85°C
3.0
IDP = 10mA
VCC = 4.75V
70
RON (I)
3.0
1.5
ICC (µA)
80
3.5
VCC = 2.8V
RON (I)
RON (I)
3.5
VCC = 3.3V, ITD_ = 10mA
4.5
1.1
1.0
CB_ RISING
0.9
MAX14600 toc09
4.0
DP/DM SHORT ON-RESISTANCE vs. VDP
90
MAX14600 toc02
ITD_ = 10mA
4.5
5.0
MAX14600 toc01
5.0
MAX14600 toc03
TDP/TDM ON-RESISTANCE
vs. SUPPLY VOLTAGE
0.8
0.7
CB_ FALLING
0.6
0.5
0.4
0.3
0.2
0.1
0
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
VCC (V)
VCC (V)
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
AUTODETECTION MODE
EYE DIAGRAM
MAX14600 toc11
DIFFERENTIAL SIGNAL (V)
MAX14604 toc10
CB0:CB1 CHANGE FROM 11 to 00
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
DM
2V/div
DP
CB0:CB1
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
TIME (ns)
250µs/div
AUTODETECTION MODE
REMOTE WAKE-UP SUPPORT
MAX14600 toc12
MAX14600 toc13
CB0 = CB1 = 0V
DM
2V/div
DP
CB0 AND CB1 CHANGE FROM 11 TO 00
WITH A MOUSE CONNECTED.
DP
5V/div
CEN
5V/div
1V/div
DM
CB0:CB1
5V/div
1ms/div
10ms/div
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Pin Configurations
TOP VIEW
CB0
TDM
TDP
VCC
CB0
TDM
TDP
VCC
CB0
TDM
TDP
VCC
8
7
6
5
8
7
6
5
8
7
6
5
MAX14601
MAX14604
MAX14618
MAX14600
MAX14603
MAX14602
MAX14605
*EP
*EP
*EP
1
2
3
4
1
2
3
4
1
2
3
4
CEN
DM
DP
CB1
CEN
DM
DP
CB1
CEN
DM
DP
I.C.
TDFN
TDFN
TDFN
*CONNECT EP TO GND.
Pin Descriptions
PIN
MAX14600/
MAX14603
MAX14601/
MAX14604/
MAX14618
MAX14602/
MAX14605
NAME
FUNCTION
1
—
1
CEN
Active-Low pMOSFET Open-Drain Output, Current-Limit Switch
(CLS) Control Output. When CB0 changes from VIL to VIH or VIH to
VIL, CEN is high.
—
1
—
CEN
nMOSFET Open-Drain Output, CLS Control Output. When CB0
changes from VIL to VIH or from VIH to VIL, CEN is low.
2
2
2
DM
USB Connector D- Connection
3
3
3
DP
USB Connector D+ Connection
4
4
—
CB1
Switch Control Bit. See Table 1.
—
—
4
I.C.
Internally Connected. Do not externally connect.
5
5
5
VCC
Power Supply. Connect a 0.1FF capacitor between VCC and
ground 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
CB0
Switch Control Bit. See Table 1.
—
—
—
EP
Exposed Pad. Connect EP to ground. For enhanced thermal dissipation, connect EP to a copper area as large as possible.
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Functional Diagram
VCC
VCC
MAX14600–MAX14605
RM1
CHARGING
DOWNSTREAM PORT
EMULATION STATE
MACHINE
RP1
RM2
RP2
DP
TDP
DM
TDM
DP
0.46VCC
DM1
0.41VCC
500kI
POR
DM2
CB0
CB1*
0.07VCC
CONTROL LOGIC
VCC
ONE SHOT
VBIAS
CEN
(CEN)
( ) FOR MAX14601 AND MAX14604 ONLY.
*CB1 IS NOT AVAILABLE ON MAX14602 AND MAX14605.
GND
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MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Detailed Description
The MAX14600–MAX14605 and MAX14618 adapter
emulator family has 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 Hi-Speed USB
switches feature low 4pF (typ) on-capacitance and low
3.5I (typ) on-resistance. DP and DM can handle signals
between 0V and 6V with any supply voltage.
Resistor-Dividers
The MAX14600–MAX14605/MAX14618 family features
an internal resistor-divider for biasing data lines to provide support for Apple-compliant devices. When the
MAX14600–MAX14605/MAX14618 family is not operated with the resistor-divider, the device disconnects
the resistor-dividers from the supply voltage to minimize
supply current requirements. The resistor-dividers are not
connected in pass-through mode.
Switch Control
The MAX14600–MAX14605/MAX14618 family features
dual digital inputs, CB0 and CB1, for mode selection.
For the MAX14600/MAX14601/MAX14603/MAX14604,
connect CB0 and CB1 to a logic-level low voltage for
autodetection charger mode (AM). Change only CB1 to a
logic-level high for forced dedicated charger mode (FM).
Change only CB1 to a logic-level low for normal highspeed pass-through mode (PM). Connect CB0 and CB1
to a logic-level high for high-speed pass-through mode
with CDP emulation (CM). See Table 1.
For the MAX14618, connect CB0 to a logic-level low voltage for autodetection charger mode (AM). Change CB0
to a logic-level high voltage and CB1 to a logic-level low
voltage to place the MAX14618 in normal high-speed
pass-through charger mode (PM). Connect CB0 and
CB1 to a logic-level high for high-speed pass-through
mode with CDP emuation (CM). See Table 2.
In CDP emulation mode, the peripheral device with
CDP detection capability draws the charging current
Table 1. Digital Input State for MAX14600/MAX14601/MAX14603/MAX14604
CB0
CB1
CHARGER/USB
MODE
0
0
Charger
AM
Autodetection Charger Mode
STATUS
0
1
Charger
FM
Force Dedicated Charger Mode: DP/DM shorted.
1
0
USB
PM
USB Pass-Through Mode: DP/DM connected to TDP/TDM.
1
1
USB
CM
USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to
TDP/TDM depending on CDP status.
Table 2. Digital Input State for MAX14618
CB0
CB1
CHARGER/USB
MODE
STATUS
0
X
Charger
AM
Auto detection Charger Mode with Remote Wake-Up
1
0
USB
PM
USB Pass-Through Mode: DP/DM connected to TDP/TDM.
1
1
USB
CM
USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to
TDP/TDM depending on CDP status.
Table 3. Digital Input State for MAX14602/MAX14605
CB0
CHARGER/USB
MODE
0
Charger
AM
Autodetection Charger Mode
STATUS
1
USB
CM
USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to TDP/TDM
depending on CDP status.
���������������������������������������������������������������� Maxim Integrated Products 11
MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
up to 1.5A immediately without USB enumeration. The
MAX14602/MAX14605 have CB0 digital input control
only (Table 3). The MAX14602/MAX14605 are pin-to-pin
compatible with the MAX14566E, and CB0 and CB1
are connected together internally, which makes these
devices easy upgrades for CDP emulation.
Also, 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.
Autodetection
Auto Peripheral Reset
The MAX14600–MAX14605/MAX14618 family features
autodetection charger mode for dedicated chargers and
USB masters. Both CB0 and CB1 must be set low to activate autodetection charger mode.
The MAX14600–MAX14605/MAX14618 family features
an auto current-limit switch-control output. This feature
resets the peripheral connected to VBUS in the event
the USB host switches to or from standby mode. CEN or
CEN provide a 2s (typ) pulse on the rising or falling edge
of CB0 (Figure 4 and Figure 5.) With the MAX14603/
MAX14604/MAX14605/MAX14618, the auto peripheral
reset is suspended in case of CB0 and CB1 transition
from 11 to 00 as long as the peripheral remains connected. See the Remote Wake-Up Support section for
more information.
In autodetection charger mode, the device monitors the
voltages at DM and DP to determine the type of device
attached. If the voltage at DM is 2.05V (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 2.05V (typ) threshold, the internal switch disconnects DM and DP from the resistor-divider and DP and
DM are shorted together for dedicated charging mode.
USB
TRANSCEIVER
TDM
TDP
TDM
TDP
VCC
0.1µF
GND
DP
D+
DM
D-
USB
CONNECTION
VBUS
MAX14600
MAX14603
150µF
VBUS
1kΩ
VCC
CURRENT-LIMIT
SWITCH
EN
+5V POWER
SUPPLY
CEN
10kΩ
PS EN
GND
CB0
PM/AM
CB1
CM/FM
SYSTEM CONTROL
Figure 4. MAX14600/MAX14603 Peripheral Reset Applications Diagram
���������������������������������������������������������������� Maxim Integrated Products 12
MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
USB
TRANSCEIVER
TDM
TDP
TDM
TDP
VCC
0.1µF
GND
DP
D+
DM
D-
USB
CONNECTION
VBUS
MAX14601
MAX14604
MAX14618
150µF
VBUS
VCC
CURRENT-LIMIT
SWITCH
EN
+5V POWER
SUPPLY
33kΩ
1kΩ
CEN
PS EN
GND
CB0
PM/AM
CB1
CM/FM
SYSTEM CONTROL
Figure 5. MAX14601/MAX14604/MAX14618 Peripheral Reset Applications Diagram
Table 4. Different Power States
STATE
DESCRIPTION
S0
System on.
S1
Power to the CPU(s) and RAM is maintained;
devices that do not indicate they must remain on
can be powered down.
S2
CPU is powered off.
S3
Standby (suspend to RAM). System memory
context is maintained, and all other system
context is lost.
S4
Hibernate. Platform context is maintained.
S5
Soft off.
USB Pass-Through Mode
with CDP Emulation
The MAX14600–MAX14605/MAX14618 family features
a pass-through mode with CDP emulation. This is to
support the higher charging current capability during the pass-through mode in normal USB operation
(S0 state). The peripheral device equipped with CDP
detection capability could draw a charging current as
defined in USB Battery Charger Specification 1.2 when
the charging host supports the CDP mode. This is a
useful feature since most host USB transceivers do
not have the CDP function. Table 4 shows the different
power states of S0–S5.
Bus Voltage Discharge
The MAX14601/MAX14604/MAX14618 auto 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 is desired, the CEN output can be
used to discharge the VBUS (Figure 6.)
Data Contact Detect Support
The MAX14600–MAX14605/MAX14618 family 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
���������������������������������������������������������������� Maxim Integrated Products 13
MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
USB
TRANSCEIVER
TDM
TDP
TDM
TDP
VCC
0.1µF
GND
DP
D+
DM
D-
USB
CONNECTION
VBUS
MAX14601
MAX14604
MAX14618
150µF
VCC
VBUS
CURRENT-LIMIT
SWITCH
EN
+5V POWER
SUPPLY
1kΩ
CEN
GND
CB0
PS EN
PM/AM
CB1
CM/FM
SYSTEM CONTROL
Figure 6. MAX14601/MAX14604/MAX14618 VBUS Discharge Circuit
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.
CB0 and CB1 must be set low to activate data contact
detect support.
Remote Wake-Up Support
The MAX14603/MAX14604/MAX14605/MAX14618 feature remote wake-up if pass-through mode with CDP
emulation is used prior to transitioning to auto mode
in standby state (S3). If the peripheral device is connected and remains in the USB port during S0 state, the
MAX14603/MAX14604/MAX14605/MAX14618 maintain
the pass-through mode until it is removed. If this feature
is not needed, such as in battery-powered mode, the
embedded control could cancel the remote wake-up by
toggling the VBUS as it moves into the standby state.
Backward Compatibility
The MAX14602/MAX14605 offer easy backward-compatible CDP emulation upgrade to the MAX14566E.
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents test
methodology and results.
Extended ESD Protection
(Human Body Model)
ESD-protection structures are incorporated on all pins
to protect against electrostatic discharges up to Q2kV
(Human Body Model) encountered during handling and
assembly. 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 7a and Figure 7b).
���������������������������������������������������������������� Maxim Integrated Products 14
MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
RC
1MΩ
RD
1.5kΩ
CHARGE-CURRENTLIMIT RESISTOR
DISCHARGE
RESISTANCE
HIGHVOLTAGE
DC
SOURCE
CS
100pF
STORAGE
CAPACITOR
IPEAK (AMPS)
DEVICE
UNDER
TEST
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
Ir
100%
90%
36.8%
10%
0
Figure 7a. Human Body ESD Test Model
0
TIME
tRL
tDL
Figure 7b. Human Body Current Waveform
Ordering Information/Selector Guide
TEMP RANGE
MODE
CONTROL
CLS
CONTROL
REMOTE
WAKE-UP
MAX14600ETA+T
-40°C to +85°C
CB0, CB1
8 TDFN-EP*
-40°C to +85°C
CB0, CB1
CEN
CEN
No
MAX14601ETA+T**
No
8 TDFN-EP*
MAX14602ETA+T
-40°C to +85°C
CB0
CEN
No
8 TDFN-EP*
MAX14603ETA+T**
-40°C to +85°C
CB0, CB1
Yes
8 TDFN-EP*
MAX14604ETA+T
-40°C to +85°C
CB0, CB1
CEN
CEN
Yes
8 TDFN-EP*
MAX14605ETA+T**
-40°C to +85°C
CB0
Yes
8 TDFN-EP*
MAX14618ETA+T†
-40°C to +85°C
CB0, CB1
CEN
CEN
Yes
8 TDFN-EP*
PART
PIN-PACKAGE
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*EP = Exposed pad.
**Future product—contact factory for availability.
†Refer to Table 2 for differences in digital input.
Chip Information
PROCESS: BiCMOS
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+2
21-0168
90-0065
���������������������������������������������������������������� Maxim Integrated Products 15
MAX14600–MAX14605/MAX14618
USB Host Charger Identification/Adapter Emulators
Revision History
REVISION
NUMBER
REVISION
DATE
0
6/11
Initial release
1
9/11
Added MAX14618 to data sheet; corrected Conditions on VDM_SRC Voltage in the
Electrical Characteristics; corrected x-scale labels on TOC5 in the Typical Operating
Characteristics
2
10/11
Corrected package code and land pattern number in the Package Information
15
3
5/12
Relabeled TOC 10
9
DESCRIPTION
PAGES
CHANGED
—
1–7, 9, 11–15
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
© 2012
Maxim Integrated Products 16
Maxim is a registered trademark of Maxim Integrated Products, Inc.