19-5957; Rev 0; 6/11
MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
General Description
The MAX14600–MAX14605 are third-generation USB 2.0 host charger identification devices that combine USB Hi-Speed analog switches with a USB adapter emulator circuit. 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 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 support remote wake-up in standby mode. The MAX14602/MAX14605 offer backwardcompatible CDP emulation upgrade to the MAX14566E. The MAX14600–MAX14605 are available in an 8-pin (2mm x 2mm) TDFN package, and are specified over the -40NC to +85NC extended temperature range.
Benefits and Features
S Improved 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 S Greater User Flexibility CB0 and CB1 Pins Control Multiple Automatic and Manual Charger States S High Level of Integrated Features Supports Remote Wake-Up (MAX14603/ MAX14604/MAX14605) Low-Capacitance USB 2.0 Hi-Speed Switch to Change Charging Modes Automatic Current-Limit Switch Control S Save Space on Board 2mm x 2mm, 8-Pin TDFN Package
Applications
USB Host Data/Chargers including: Laptop and Desktop Computers USB Hubs Flat-Panel Displays with USB Media Players Game Consoles
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.
Typical Operating Circuit
5V SWITCHING POWER SUPPLY Li+ BATTERY EMBEDDED CONTROLLER STANDBY CDP/FM CB0 CB1 OVERCURRENT PROTECTOR CEN USB A APPLE DOCK CONNECTOR APPLE DOCK iPod® OR iPhone®
EXTERNAL POWER SUPPLY
CEN DM DP
VBUS DUSB A D+ CONNECTOR USB A MICRO B
PHONE OR MP3 PLAYER MICRO-USB CONNECTOR
MAX14600
LAPTOP CHIPSET USB TRANSCEIVER TDM TDP
GND
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 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 POWER SUPPLY Power-Supply Range VCC VCB0 > VIH VCB0 = 0V (Note 3) VCB0 = VCB1 = VCC = 5.25V, CM mode VCB0 = VCC = 5.25V, VCB1 = 0V, PM mode VCB0 = 0V, VCB1 = VCC = 5.25V, FM mode VCB0 = VCB1 = 0V, AM mode ANALOG SWITCH Analog-Signal Range On-Resistance TDP/TDM Switch On-Resistance Match Between Channels TDP/TDM Switch On-Resistance Flatness TDP/TDM Switch On-Resistance of DP/DM Short Off-Leakage Current On-Leakage Current DYNAMIC PERFORMANCE (Note 4) Turn-On Time tON VTDP or VTDM = 1.5V, RL = 300I, CL = 35pF, VIH = VCC, VIL = 0V, Figure 1 300 800 Fs VDP, VDM RON DRON RFLAT RSHORT ITDPOFF, ITDMOFF IDPON, IDMON VTDP = VTDM = 0V to VCC, ITDP = ITDM = 10mA VCC = 5.0V, VDP = VDM = 400mV, IDP = IDM = 10mA VCC = 5.0V, VDP = VDM = 0 to VCC, IDP = IDM = 10mA VCB0 = 0V, VCB1 = VCC, VDP = 1V, RDM = 20kW VCC = 3.6V, VDP = VDM = 0.3V to 3.3V, VTDP = VTDM = 3.3V to 0.3V VCC = 3.6V, VDP = VDM = 3.3V to 0.3V, VCB_ = VCC -250 -250 0 3.5 0.1 0.1 70 120 +250 +250 VCC 6.5 V I I I I nA nA 3.0 4.75 50 4 10 130 5.5 5.25 100 20 50 200 FA V SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Current
ICC
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MAX14600–MAX14605 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 Turn-Off Time TDP, TDM Switch Propagation Delay Output Skew TDP, TDM Off-Capacitance DP, DM On-Capacitance (Connected to TDP, TDM) -3dB Bandwidth Off-Isolation Crosstalk DPC INTERNAL RESISTORS DP/DM Short Pulldown RP1/RP2 Ratio RP1 + RP2 Resistance RM1/RM2 Ratio RM1 + RM2 Resistance DPC COMPARATORS (Note 4) DM1 Comparator Threshold DM1 Comparator Hysteresis DM2 Comparator Threshold DM2 Comparator Hysteresis DP Comparator Threshold DP Comparator Hysteresis CDP INTERNAL RESISTORS DP Pulldown Resistor DM Pulldown Resistor VDM_SRC Voltage VDAT_REF Voltage VLGC Voltage IDP_SINK Current RDP_DWN RDM_DWN VDM_SRC VDAT_REF VLGC IDP_SINK VDP = 0.15V to 3.6V ILOAD = 0 to 200FA, TA = +25°C 0.5 0.25 0.8 50 14.25 14.25 24.8 24.8 0.7 0.4 2.0 150 kI kI V V V FA VDPR DP rising 45 VDM2F DM falling 6.31 VDM1F DM falling 40 41 1 7 1 46 1 47 7.6 42 %VCC % %VCC % %VCC % RPD RTRP RRP RTRM RRM 320 1.4 85 0.85 60 500 1.5 125 0.86 93 730 1.55 170 0.87 125 kI — kI — kI SYMBOL tOFF tPLH, tPHL tSK COFF CON BW VISO VCT CONDITIONS VTDP or VTDM = 1.5V, RL = 300I, CL = 35pF, VIH = VCC, VIL = 0V, Figure 1 (Note 5) RL = RS = 50I Skew between DP and DM when connected to TDP and TDM, RL = RS = 50I, Figure 2 f = 1MHz, VBIAS = 0V, VIN = 500mVP-P f = 240MHz, VBIAS = 0V, VIN = 500mVP-P RL = RS = 50I VTDP or VDP = 0dBm, RL = RS = 50I, f = 250MHz, Figure 3 VTDP or VDP = 0dBm, RL = RS = 50I, f = 250MHz, Figure 3 MIN TYP 1 MAX 5 UNITS Fs
60
ps
40 2.0 4.0 1000 -20 -25 5.5
ps pF pF MHz dB dB
CDP LOW-SPEED COMPARATORS
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MAX14600–MAX14605 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 LOGIC INPUTS (CB0, CB1) CB0/CB1 Input Logic-High CB0/CB1 Input Logic-Low CB0/CB1 Input Leakage Current CEN/CEN OUTPUTS VBUS Toggle Time CEN Output Logic-High Voltage CEN Output Leakage Current CEN Output Logic-Low Voltage CEN Output Leakage Current ESD PROTECTION ESD Protection Level 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 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. tVBT CB0 = VIL to VIH or VIH to VIL CB0 = VIL to VIH, ISOURCE = 2mA VCC = 5.5V, VCEN = 0V, CEN deasserted CB0 = VIL to VIH, ISINK = 2mA VCC = VCEN = 5.5V, CEN deasserted 1 VCC 0.4 1 0.4 1 2 3 s V FA V FA VIH VIL IIN VCC = 5.5V, 0V P VIN P VIL or VIH P VIN P VCC -1 1.4 0.4 +1 V V FA SYMBOL CONDITIONS MIN TYP MAX UNITS
Test Circuits/Timing Diagrams
VCC VCC MAX14600– MAX14605 VIN TD_ CB0 LOGIC INPUT CB1* D_ RL GND VOUT CL SWITCH OUTPUT 0V t ON IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. *NOT AVAILABLE ON MAX14602/MAX14605. VOUT LOGIC INPUT VIH VIL 50% t r < 5 ns t f < 5 ns
t OFF 0.9 x V0UT 0.9 x VOUT
CL INCLUDES FIXTURE AND STRAY CAPACITANCE. VOUT = VIN
RL RL + RON
Figure 1. Switching Time
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
Test Circuits/Timing Diagrams (continued)
MAX14600– MAX14605 IN+ RS TDP DP RL RS TDM DM RL CB0 VCC CB1* *NOT AVAILABLE ON MAX14602/MAX14605. OUT+ RISE-TIME PROPAGATION DELAY = tPLHX OR tPLHY FALL-TIME PROPAGATION DELAY = tPHLX OR tPHLY tSK = |tPLHX - tPLHY| OR |tPHLX - tPHLY|
IN-
OUT-
tINRISE V+ VIN+ 0V V+ VIN0V tOUTRISE tPLHX V+ VOUT+ 0V V+ VOUT0V tPHLY tPLHY 50% 50% 50% 50% 10% tPHLX 90% 50% 50% 50% 50% 10%
tINFALL
90%
90% 10%
tOUTFALL
90% 10%
Figure 2. Output Signal Skew
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
Test Circuits/Timing Diagrams (continued)
V OFF-ISOLATION = 20log OUT VIN 50Ω V CROSSTALK = 20log OUT VIN
VCC 0V OR VCC CB0 CB1** MAX14600– MAX14605 VCC TDP VIN 50Ω
NETWORK ANALYZER
DP*
VOUT
MEAS 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 USB Host Charger Identification/Adapter Emulators
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
TDP/TDM ON-RESISTANCE vs. SUPPLY VOLTAGE
MAX14600 toc01
ON-RESISTANCE vs. VTDP/ TDM
MAX14600 toc02
DP/DM SHORT ON-RESISTANCE vs. VDP
80 70 60 RON (I) VCC = 4.75V IDP = 10mA
MAX14600 toc03 MAX14600 toc09 MAX14600 toc06
5.0 4.5 4.0 3.5 RON (I) 3.0 2.5 2.0 1.5 1.0 0.5 0 VCC = 2.8V
ITD_ = 10mA
5.0 4.5 4.0 3.5 RON (I) 3.0 2.5 2.0 1.5 1.0 0.5 0 TA = +85°C
VCC = 3.3V, ITD_ = 10mA
90
TA = +25°C
50 40 30 20 10 0
VCC = 5.5V
VCC = 5.5V
TA = -40°C
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 VTDP/ TDM (V)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
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)
VTDP/ TDM (V)
DP/ DM SHORT ON-RESISTANCE vs. TEMPERATURE
MAX14600 toc04
TDP/ DP LEAKAGE CURRENT vs. TEMPERATURE
MAX14600 toc05
SUPPLY CURRENT vs. SUPPLY VOLTAGE
70 CB0 = CB1 = VCC 60 50 ICC (µA) 40 30 20 10 TA = +25°C TA = -40°C TA = +85°C
100 90 80 70 RON (I) 60 50 40 30 20 10 0 0
VCC = 5.5V, ID_ = 10mA TA = +85°C
80 70 LEAKAGE CURRENT (nA) 60 50 40 30 20 10
VCC = 3.6V, VTDP = 3.3V ON-LEAKAGE
TA = +25°C
TA = -40°C
1
2
3 VDP/DM (V)
4
5
6
0 -45 -30 -15 0 15 30
OFF-LEAKAGE 45 60 75 90
0 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5 VCC (V)
TEMPERATURE (°C)
SUPPLY CURRENT vs. LOGIC LEVEL
MAX14600 toc07
TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE
450 TURN-ON/ TURN-OFF TIME (µs) 400 350 300 250 200 150 100 50 0 tOFF tON
MAX14600 toc08
LOGIC-INPUT THRESHOLD vs. SUPPLY VOLTAGE
1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 CB_ FALLING CB_ RISING
180 160 140 120 ICC (µA) 100 80 60 40 20 0 0 0.5 1.0 1.5 2.0
VCC = 5.5V
500
LOGIC-INPUT THRESHOLD (V)
2.5
3.0
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5 VCC (V)
2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5 VCC (V)
LOGIC LEVEL (V)
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
EYE DIAGRAM
MAX14600 toc10
AUTODETECTION MODE
MAX14600 toc11
0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 TIME (ns)
CB0:CB1 CHANGE FROM 11 to 00 DM
DIFFERENTIAL SIGNAL (V)
2V/div
DP
CB0:CB1 250µs/div
AUTODETECTION MODE
MAX14600 toc12
REMOTE WAKE-UP SUPPORT
MAX14600 toc13
CB0 = CB1 = 0V DM 2V/div DP 1V/div CB0 AND CB1 CHANGE FROM 11 TO 00 WITH A MOUSE CONNECTED. DP 5V/div CEN 5V/div DM CB0:CB1 5V/div 1ms/div 10ms/div
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
Pin Configurations
TOP VIEW
CB0 8 TDM 7 TDP 6 VCC 5 CB0 8 TDM 7 TDP 6 VCC 5 CB0 8 TDM 7 TDP 6 VCC 5
MAX14600 MAX14603
*EP
MAX14601 MAX14604
*EP
MAX14602 MAX14605
*EP
1 CEN
2 DM
3 DP
4 CB1
1 CEN
2 DM
3 DP
4 CB1
1 CEN
2 DM
3 DP
4 I.C.
TDFN
*CONNECT EP TO GND.
TDFN
TDFN
Pin Descriptions
PIN MAX14600/ MAX14603 1 MAX14601/ MAX14604 — MAX14602/ MAX14605 1 NAME FUNCTION 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. nMOSFET Open-Drain Output, CLS Control Output. When CB0 changes from VIL to VIH or from VIH to VIL, CEN is low. USB Connector D- Connection USB Connector D+ Connection Switch Control Bit. See Table 1. Internally Connected. Do not externally connect. Power Supply. Connect a 0.1FF capacitor between VCC and ground as close as possible to the device. Host USB Transceiver D+ Connection Host USB Transceiver D- Connection Switch Control Bit. See Table 1. Exposed Pad. Connect EP to ground. For enhanced thermal dissipation, connect EP to a copper area as large as possible.
CEN
— 2 3 4 — 5 6 7 8 —
1 2 3 4 — 5 6 7 8 —
— 2 3 — 4 5 6 7 8 —
CEN DM DP CB1 I.C. VCC TDP TDM CB0 EP
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
Functional Diagram
VCC VCC
MAX14600–MAX14605
CHARGING DOWNSTREAM PORT EMULATION STATE MACHINE RM1 RP1 RM2
RP2
DP TDP
DM TDM DP 0.46VCC 0.41VCC 500kI DM2 0.07VCC
DM1 POR
CB0 CB1*
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 USB Host Charger Identification/Adapter Emulators
Detailed Description
The MAX14600–MAX14605 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 4I (typ) on-resistance. DP and DM can handle signals between 0V and 6V with any supply voltage. The MAX14600–MAX14605 family features an internal resistor-divider for biasing data lines to provide support for Apple-compliant devices. When the MAX14600– MAX14605 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. The MAX14600–MAX14605 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. In CDP emulation mode, the peripheral device with CDP detection capability draws the charging current up to 1.5A immediately without USB enumeration. The MAX14602/MAX14605 have CB0 digital input control only (Table 2). 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.
Switch Control
Resistor-Dividers
Table 1. Digital Input State for MAX14600/MAX14601/MAX14603/MAX14604
CB0 0 0 1 1 CB1 0 1 0 1 CHARGER/USB Charger Charger USB USB MODE AM FM PM CM Autodetection Charger Mode Force Dedicated Charger Mode: DP/DM shorted. USB Pass-Through Mode: DP/DM connected to TDP/TDM. USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to TDP/TDM depending on CDP status. STATUS
Table 2. Digital Input State for MAX14602/MAX14605
CB0 0 1 CHARGER/USB Charger USB MODE AM CM Autodetection Charger Mode USB Pass-Through Mode with CDP Emulation: Auto connects DP/DM to TDP/TDM depending on CDP status. STATUS
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
The MAX14600–MAX14605 family features autodetection charger mode for dedicated chargers and USB masters. Both CB0 and CB1 must be set low to activate autodetection charger mode. 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. 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
The MAX14600–MAX14605 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, 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.
Auto Peripheral Reset
The MAX14600–MAX14605 family features a passthrough mode with CDP emulation. This is to support the higher charging current capability during the passthrough mode in normal USB operation (S0 state). The peripheral device equipped with CDP detection capability could draw a charging current as defined
USB Pass-Through Mode with CDP Emulation
USB TRANSCEIVER TDM TDP
VCC 0.1µF
TDM
TDP DP DM
GND D+ DVBUS 150µF VBUS CURRENT-LIMIT SWITCH EN VCC +5V POWER SUPPLY USB CONNECTION
MAX14600 MAX14603
1kΩ
CEN
10kΩ
PS EN CB0 GND CB1 PM/AM CM/FM SYSTEM CONTROL
Figure 4. MAX14600/MAX14603 Peripheral Reset Applications Diagram
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
USB TRANSCEIVER TDM TDP VCC 0.1µF
TDM
TDP DP DM
GND D+ DVBUS 150µF VBUS CURRENT-LIMIT SWITCH EN VCC +5V POWER SUPPLY USB CONNECTION
MAX14601 MAX14604
33kΩ 1kΩ
CEN PS EN CB0 GND CB1 PM/AM CM/FM SYSTEM CONTROL
Figure 5. MAX14601/MAX14604 Peripheral Reset Applications Diagram
Table 3. Different Power States
STATE S0 S1 S2 S3 S4 S5 System on. Power to the CPU(s) and RAM is maintained; devices that do not indicate they must remain on can be powered down. CPU is powered off. Standby (suspend to RAM). System memory context is maintained, and all other system context is lost. Hibernate. Platform context is maintained. Soft off. DESCRIPTION
The MAX14601/MAX14604 auto current-limit switchcontrol 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.) The MAX14600–MAX14605 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 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.
Bus Voltage Discharge
Data Contact Detect Support
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 3 shows the different power states of S0–S5.
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
USB TRANSCEIVER TDM TDP VCC 0.1µF
TDM
TDP DP DM
GND D+ DVBUS 150µF VBUS CURRENT-LIMIT SWITCH EN VCC +5V POWER SUPPLY USB CONNECTION
MAX14601 MAX14604
1kΩ
CEN CB0 GND CB1 PS EN PM/AM CM/FM
SYSTEM CONTROL
Figure 6. MAX14601/MAX14604 VBUS Discharge Circuit
The MAX14603/MAX14604/MAX14605 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 MAX14600 maintains 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.
Remote Wake-Up Support
ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test methodology and results.
ESD Test Conditions
Backward Compatibility The MAX14602/MAX14605 offer easy backward-compatible CDP emulation upgrade to the MAX14566E.
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).
Extended ESD Protection (Human Body Model)
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
RC 1MΩ CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE RD 1.5kΩ DISCHARGE RESISTANCE DEVICE UNDER TEST IPEAK (AMPS) 100% 90% Ir PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE)
CS 100pF
STORAGE CAPACITOR
36.8% 10% 0
0
TIME tRL tDL
Figure 7a. Human Body ESD Test Model
Figure 7b. Human Body Current Waveform
Ordering Information/Selector Guide
PART MAX14600ETA+T MAX14601ETA+T** MAX14602ETA+T MAX14603ETA+T** MAX14604ETA+T MAX14605ETA+T** TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C MODE CONTROL CB0, CB1 CB0, CB1 CB0 CB0, CB1 CB0, CB1 CB0 CLS CONTROL CEN CEN CEN CEN CEN CEN REMOTE WAKE-UP No No No Yes Yes Yes PIN-PACKAGE 8 TDFN-EP* 8 TDFN-EP* 8 TDFN-EP* 8 TDFN-EP* 8 TDFN-EP* 8 TDFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad. **Future product—contact factory for availability.
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 8 TDFN-EP PACKAGE CODE T822+1 OUTLINE NO. 21-0168 LAND PATTERN NO. 90-0064
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MAX14600–MAX14605 USB Host Charger Identification/Adapter Emulators
Revision History
REVISION NUMBER 0 REVISION DATE 6/11 Initial release DESCRIPTION PAGES CHANGED —
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.
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16
2011 Maxim Integrated Products
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