MAX14566BEETA

19-5293; Rev 1; 3/11 TION KIT EVALUA BLE ILA AVA USB Host Charger Identification Analog Switches 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 General Description 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. MAX14566E/MAX14566AE/MAX14566BE Applications Laptops Netbooks Universal Charger including iPodM/iPhoneM Chargers Ordering Information/ Selector Guide PART MAX14566EETA+ MAX14566AEETA+ MAX14566BEETA+ PINPACKAGE 8 TDFN-EP* 8 TDFN-EP* 8 TDFN-EP* CLS CONTROL CEN CEN — TOP MARK ADJ ADK BMR 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. Typical Operating Circuit EXTERNAL POWER SUPPLY 5V SWITCHING POWER SUPPLY OVERCURRENT PROTECTOR CEN USB A APPLE DOCK CONNECTOR APPLE DOCK iPod OR iPhone Li+ BATTERY LAPTOP CHIPSET USB TRANSCEIVER STANDBY TDM TDP CEN DM VBUS DDP USB D+ A CONNECTOR GND USB A MICRO B PHONE OR MP3 PLAYER MICRO-USB CONNECTOR MAX14566E CB 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. USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE 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: 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 = 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 VCB > VIH VCB = 0V (Note 3) VCB = VCC Supply Current ICC VCB = 0V Supply Current Increase POWER SUPPLY (MAX14566BE) VCB = VCC and VCB1 = VCC or VCB = VCC and VCB1 = 0V or VCB = 0V and VCB1 = VCC VCB = 0V and VCB1 = 0V (Note 3) VCB = VCC and VCB1 = VCC or VCB = VCC and VCB1 = 0V VCB = 0V and VCB1 = 0V VCB = 0V and VCB1 = VCC VCC = 3.3V VCC = 5.5V VCC = 4.75V VCC = 5.25V VCC = 5.0V for TYP VCC = 5.5V for MAX 110 120 3 1 mA 1 2.8 4.75 5.5 5.25 2 7 200 200 7 mA V V DICC VCC = 3.3V VCC = 5.5V VCC = 4.75V VCC = 5.25V 110 120 CONDITIONS MIN 2.8 4.75 TYP MAX 5.5 5.25 2 7 200 200 2 FA FA UNITS V V POWER SUPPLY (MAX14566E/MAX14566AE) Power-Supply Range VCC 0 P VCB P VIL or VIH P VCB P VCC Power-Supply Range VCC Supply Current ICC Supply Current Increase DICC VCB1 = 0V; 0 ≤ VCB ≤ VIL and VIH ≤ VCB ≤ VCC (Note 4) VCB = 0V; 0 ≤ VCB1 ≤ VIL and VIH ≤ VCB1 ≤ VCC (Note 4) 2 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 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 Turn-On Time 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 INTERNAL RESISTORS DP/DM Short Pulldown RP1/RP2 Ratio RP1 + RP2 Resistance RM1/RM2 Ratio RM1 + RM2 Resistance COMPARATORS DM1 Comparator Threshold DM1 Comparator Hysteresis DM2 Comparator Threshold DM2 Comparator Hysteresis DP Comparator Threshold VDPR DP rising 45 VDM2F DM falling 6.31 VDM1F DM falling 45 46 1 7 1 46 47 7.6 47 %VCC % %VCC % %VCC 3 RPD RTRP RRP RTRM RRM 335 1.485 95 0.843 70 500 1.5 126 0.85 94 710 1.515 176 0.865 132 kI Ratio kI Ratio kI tON tOFF tPLH, tPHL VTDP or VTDM = 1.5V, RL = 300I, CL = 35pF, Figure 1 VTDP or VTDM = 1.5V, RL = 300I, CL = 35pF, Figure 1 RL = RS = 50I Skew between DP and DM when connected to TDP and TDM, RL = RS = 50I, Figure 2 f = 1MHz f = 240MHz RL = RS = 50I (Note 4) VTDP, VDP = 0dBm, RL = RS = 50I, f = 250MHz, Figure 3 (Note 4) VTDP, VDP = 0dBm, RL = RS = 50I, f = 250MHz, Figure 3 (Note 4) 20 1 60 100 5 Fs Fs ps VDP,VDM RON DRON RFLAT RSHORT ITDPOFF, ITDMOFF IDPON,IDMON VDP = VDM = 0V to VCC, IDP = IDM = 10mA VCC = 5.0V, VDP = VDM = 400mV, IDP = IDM = 10mA VCC = 5.0V, VDP = VDM = 0 to VCC, IDP = IDM = 10mA VCB = 0V, VDP = 1V, IDP = IDM = 10mA VCC = 3.6V, VDP = VDM = 0.3V to 3.3V, VTDP = VTDM = 3.3V to 0.3V, VCB = 0V VCC = 3.6V, VDP = VDM = 3.3V to 0.3V, VCB = VCC -250 -250 0 4.0 0.1 0.1 40 70 +250 +250 VCC 6.5 V I I I I nA nA SYMBOL CONDITIONS MIN TYP MAX UNITS MAX14566E/MAX14566AE/MAX14566BE tSK(O) COFF CON BW VISO VCT 40 2.0 4.0 1000 -20 -25 5.5 ps pF pF MHz dB dB 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 DP Comparator Hysteresis LOGIC INPUT (CB, CB1) CB/CB1 Input Logic-High CB/CB1 Input Logic-Low CB/CB1 Input Leakage Current CEN/CEN OUTPUTS VBUS Toggle Time (MAX14566E/ MAX14566AE) CEN Output Logic-High Voltage CEN Output Leakage Current CEN Output Logic-Low Voltage CEN Output Leakage Current ESD PROTECTION ESD Protection Level (DP and DM Only) ESD Protection Level (All Other Pins) VESD VESD HBM HBM Q15 Q2 kV kV tVBT CB = logic 0 to logic 1 or logic 1 to logic 0 CB = logic 0 to logic 1, ISOURCE = 2mA (MAX14566E only) VCC = 5.5V, VCEN = 0V, CEN deasserted (MAX14566E only) CB = logic 0 to logic 1, ISINK = 2mA (MAX14566AE only) VCC = VCEN = 5.5V, CEN deasserted (MAX14566AE only) 0.5 VCC 0.4 1 0.4 1 1 2 s V FA V FA VIH VIL IIN VCC = 5.5V, 0V P VCB P VIL or VIH P VCB P VCC -1 1.4 0.4 +1 V V FA SYMBOL CONDITIONS MIN TYP 1 MAX UNITS % 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 MAX14566E MAX14566AE MAX14566BE VIN TD_ CB LOGIC INPUT GND D_ RL VOUT CL SWITCH OUTPUT 0V t ON IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. VOUT 0.9 x V0UT LOGIC INPUT VIH VIL 50% t r < 5 ns t f < 5 ns t OFF 0.9 x VOUT CL INCLUDES FIXTURE AND STRAY CAPACITANCE. VOUT = VIN RL RL + RON Figure 1. Switching Time 4 USB Host Charger Identification Analog Switches Test Circuits/Timing Diagrams (continued) MAX14566E/MAX14566AE/MAX14566BE IN+ RS MAX14566E MAX14566AE MAX14566BE TDP DP RL 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| OUTRL CB VCC IN- RS TDM DM 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 5 USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE Test Circuits/Timing Diagrams (continued) OFF-ISOLATION = 20log 50Ω VOUT VIN VCC 0V OR VCC CB VCC TDP MAX14566E MAX14566AE MAX14566BE VIN 50Ω NETWORK ANALYZER V CROSSTALK = 20log OUT VIN DP* VOUT MEAS 50Ω REF 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.) TDP/TDM ON-RESISTANCE vs. SUPPLY VOLTAGE MAX14566E toc01 ON-RESISTANCE vs. VTDP/TDM MAX14566E toc02 4.0 3.5 3.0 RON (I) 2.5 2.0 1.5 1.0 0.5 0 VCC = 2.8V 4.5 4.0 3.5 RON (I) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 TA = +85°C 45 40 35 RON (I) 30 25 20 15 10 5 0 VCC = 2.8V TA = +25°C VCC = 5.5V TA = -40°C VCC = 5.5V 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 (V) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VTDP/TDM (V) 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) 6 MAX14566E toc03 4.5 5.0 DP/DM SHORT ON-RESISTANCE vs. SUPPLY VOLTAGE 50 VCC = 3.3V USB Host Charger Identification Analog Switches Typical Operating Characteristics (continued) (VCC = 5V, TA = +25NC, unless otherwise noted.) MAX14566E/MAX14566AE/MAX14566BE TDP/DP LEAKAGE CURRENT vs. TEMPERATURE MAX14566E toc04 SUPPLY CURRENT vs. SUPPLY VOLTAGE CB = VCC TA = -40°C MAX14566E toc05 45 40 LEAKAGE CURRENT (nA) 35 30 25 20 15 10 5 0 VCC = 3.6V, VTDP = 3.3V ON-LEAKAGE 6 5 4 ICC (µA) 3 2 1 TA = +25°C TA = +85°C OFF-LEAKAGE 0 -45 -30 -15 0 15 30 45 60 75 90 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 MAX14566E toc06 TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE 24 22 20 18 16 14 12 10 8 6 4 2 0 2.0 MAX14566E toc07 160 140 120 ICC (µA) 100 80 60 40 20 0 VCC = 5.5V TURN-ON/TURN-OFF TIME (µs) tON tOFF 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0 3.3 LOGIC LEVEL (V) 2.5 3.0 3.5 4.0 VCC (V) 4.5 5.0 5.5 6.0 LOGIC-INPUT THRESHOLD vs. SUPPLY VOLTAGE MAX14566E toc08 AUTODETECTION MODE MAX14566E toc09 1.2 1.1 LOGIC-INPUT THRESHOLD (V) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 CB_RISING VCC = 5.0V, DP/DM HIGH IMPEDANCE, CB LOGIC 1 TO LOGIC 0 DP 1V/div DM 1V/div CB_FALLING CB 2V/div 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5 VCC (V) 10µs/div 7 USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE Typical Operating Characteristics (continued) (VCC = 5V, TA = +25NC, unless otherwise noted.) AUTODETECTION MODE MAX14566E toc10 AUTO RESET MAX14566E toc11 VCC = 5.0V, DP/DM HIGH IMPEDANCE TO 0.5V AT DM MAX14566E CEN 2V/div DP 500mV/div 0V DM 500mV/div 0V 1ms/div 2s/div CB 2V/div 0V 0V AUTO RESET MAX14566E toc12 USB EYE DIAGRAM 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 (x 10n - 9)s MAX14566E toc13 MAX14566AE DIFFERENTIAL SIGNAL (V) CEN 2V/div 0V HI-SPEED USB TRANSMIT TEMPLATE CB 500mV/div 0V 2s/div 8 USB Host Charger Identification Analog Switches Pin Configuration TOP VIEW CB 8 TDM 7 TDP 6 VCC 5 MAX14566E/MAX14566AE/MAX14566BE TOP VIEW CB 8 TDM 7 TDP 6 VCC 5 MAX14566E MAX14566AE *EP MAX14566BE *EP 1 CEN (CEN) 2 DM 3 DP 4 GND 1 CB1 2 DM 3 DP 4 GND TDFN (2mm × 2mm) *CONNECT EP TO GND. TDFN (2mm × 2mm) ( ) FOR MAX14566AE ONLY Pin Description PIN MAX14566E — MAX14566AE 1 MAX14566BE — NAME FUNCTION 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). 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). Switch Control Bit. See Table 2. USB Connector D- Connection USB Connector D+ Connection Ground Power Supply. Connect a 0.1FF capacitor between VCC and GND as close as possible to the device. Host USB Transceiver D+ Connection Host USB Transceiver D- Connection 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 Exposed Pad. Connect EP to ground. Do not use EP as the only ground connection. CEN 1 — 2 3 4 5 6 7 — — 2 3 4 5 6 7 — 1 2 3 4 5 6 7 CEN CB1 DM DP GND VCC TDP TDM 8 8 8 CB — — — EP 9 USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE Functional Diagram VCC VCC MAX14566E MAX14566AE MAX14566BE RP1 DP RP2 RM1 DM RM2 500kI DP 0.46VCC DM1 0.46VCC DM2 0.07VCC TDP TDM CB1* CONTROL LOGIC 1s VCC ONE SHOT VBIAS CEN (CEN) CB ( ) FOR MAX14566AE ONLY *FOR MAX14566BE ONLY GND 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. 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. 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 Switch Control Resistor-Dividers USB Host Charger Identification Analog Switches 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). 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. 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). MAX14566E/MAX14566AE/MAX14566BE Autodetection Automatic Peripheral Reset Table 1. Digital Input State (MAX14566E/MAX14566AE) CB 0 1 MODE AM PM DP/DM Autodetection Circuit Active Connected to TDP/TDM COMMENT Auto Mode USB Traffic Active INTERNAL RESISTOR-DIVIDER Connected Not Connected Table 2. Digital Input State (MAX14566BE) CB 0 0 1 X = Don't care. CB1 0 1 X MODE AM FM PM Auto Mode Forced Dedicated-Charger Mode: DP/DM Shorted Pass-Through (USB) Mode: Connect DP/DM to TDP/TDM STATUS USB PERIPHERAL STANDBY ATTACH PM CB CEN VBUS 5V AM tVBT AM PM USB CONNECTION CHARGING CURRENT 1000mA 500mA 1000mA 500mA 1000mA Figure 4. MAX14566E Peripheral Reset Timing Diagram 11 USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE USB TRANSCEIVER TDM TDP VCC 0.1µF GND DP DM D+ DVBUS 150µF VCC CURRENT-LIMIT SWITCH EN CEN 10kI +5V POWER SUPPLY USB CONNECTION MAX14566E VBUS CLS EN SYSTEM CONTROL CB GND STANDBY Figure 5. MAX14566E Peripheral Reset Applications Diagram USB PERIPHERAL STANDBY ATTACH PM CB CEN VBUS USB CONNECTION 5V AM tVBT AM PM CHARGING CURRENT 1000mA 500mA 1000mA 500mA 1000mA Figure 6. MAX14566AE Peripheral Reset Timing Diagram 12 USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE USB TRANSCEIVER TDM TDP VCC 0.1µF GND DP DM D+ DVBUS 150µF VCC CURRENT-LIMIT SWITCH EN 10kI +5V POWER SUPPLY USB CONNECTION MAX14566AE 1kI CEN VBUS CLS EN SYSTEM CONTROL CB GND STANDBY Figure 7. MAX14566AE VBUS Discharge Circuit 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. 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 Bus Voltage Discharge is established. CB must be set low to activate data contact detect. ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test setup, test methodology, and test results. ESD Test Conditions Data Contact Detect 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). Extended ESD Protection (Human Body Model) 13 USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE Typical Application Circuit (MAX14566BE) USB TRANSCEIVER TDM TDP VCC 0.1µF TDM TDP GND DP DM D+ DVBUS 150µF VBUS CURRENT-LIMIT SWITCH VCC +5V POWER SUPPLY EN EN USB CONNECTION MAX14566BE CB1 CB GND AM/FM PM SYSTEM CONTROL 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 8a. Human Body ESD Test Model Figure 8b. Human Body Current Waveform 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 14 USB Host Charger Identification Analog Switches MAX14566E/MAX14566AE/MAX14566BE Revision History REVISION NUMBER 0 1 REVISION DATE 10/10 3/11 Initial release 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. 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