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