EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX14576/MAX14636/ MAX14637 USB Charger Detectors General Description The MAX14576/MAX14636/MAX14637 are USB charger detectors. The MAX14576/MAX14636/MAX14637 will pass USB Battery Charger Specification Revision 1.2 (USB BC 1.2) compliance tests. The MAX14636/MAX14637 can also detect Apple chargers, and other nonstandard types. These devices are capable of detecting multiple USB battery charging methods, including standard downstream ports (SDP), charging downstream ports (CDP), and dedicated charger ports (DCP). The devices also feature USB BC 1.2 defined dead-battery option support. The MAX14576/MAX14636/MAX14637 feature analog switches that are capable of passing USB Hi-Speed, fullspeed, and low-speed signals. The switches have low onresistance (3I, typ) and low on-capacitance (4.5pF, typ). The CDN and CDP are high ESD protected up to Q15kV Human Body Model (HBM), Q15kV IEC61000-4-2 Air Gap Discharge, and Q 8kV IEC61000-4-2 Contact Discharge. The MAX14576/MAX14636/MAX14637 are available in a 10-pin (1.6mm x 2.1mm) UTQFN package and operate over the 0C to +70C extended temperature range. Applications Cell Phones Digital Cameras eReaders Benefits and Features High Level of Integration * Capability to Withstand -6V to +30V (Absolute Maximum) on VBUS Line * USB Battery Charger Detection -- Will Pass USB Battery Charger Specification Rev 1.2 Compliance Tests -- USB DCP, SDP, and CDP Detection -- Proprietary Charger Detection Capability (MAX14636/MAX14637) * USB 2.0 Hi-Speed Switch with 3 (typ) On-Resistance and 4.5pF (typ) On-Capacitance * High ESD Protection on CDP and CDN -- 15kV--HBM -- 15kV--IEC 61000-4-2 Air-Gap Discharge -- 8kV--IEC 61000-4-2 Contact Discharge * 15kV HBM ESD Protection VBUS When Bypassed with 0.1F or Greater Ceramic Capacitor Save Power in Portable Applications * Low Supply Current (150A, typ) Space Saving * 10-Pin, 1.6mm x 2.1mm, UTQFN Package Ordering Information/Selector guide appears at end of data sheet. Tablets Portable Industrial Products Functional Diagram/ Typical Application Circuit VBUS CHG_DET INTERNAL POWER VIO CHG_AL_N SW_OPEN VBUS USB/MICRO-USB D+ CONNECTOR CDN TDN CDP TDP GOOD_BAT GND 1M (MAX14636/ MAX14637) 1M (MAX14636/ MAX14637) MAX14576 MAX14636 MAX14637 GND 19-6457; Rev 4; 8/18 VIO I/O CONTROL USB CHARGER DETECTION D- VBUS PMIC 1M MICROPROCESSOR MAX14576/MAX14636/ MAX14637 USB Charger Detectors Absolute Maximum Ratings (All voltages referenced to GND.) VVBUS.......................................................................-6V to +30V CHG_AL_N............................................................-0.3V to +30V SW_OPEN, GOOD_BAT..........................................-0.3V to +6V CHG_DET (Note 1).............................. -0.3V to (VCCINT + 0.3V) TDP, TDN............................................. -0.3V to (VCCINT + 0.3V) CDP, CDN............................................................... -0.3V to +6V Continuous Current into All Terminals...............................50mA Continuous Power Dissipation (TA = +70C) UTQFN (derate 9mW/C above +70C).......................722mW Operating Temperature Range................................0C to +70C Maximum Junction Temperature......................................+150C Storage Temperature Range............................. -65C to +150C Lead Temperature (soldering, 10s).................................. +300C Soldering Temperature (reflow)........................................+260C Note 1: VCCINT = min (VVBUS, +4.2V). 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 Information PACKAGE TYPE: 10 ULTRA QFN Package Code V101A2CN+1 Outline Number 21-0610 Land Pattern Number 90-0386 THERMAL RESISTANCE, FOUR-LAYER BOARD Junction to Ambient (JA) 110.8C/W Junction to Case (JC) 62.1C/W Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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. www.maximintegrated.com Maxim Integrated 2 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Electrical Characteristics (VVBUS = 3.5V to 5.5V, TA = 0C to +70C, unless otherwise noted. Typical values are at VVBUS = 5.0V, TA = +25C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 28 V 2.2 3.15 V VVBUS = 5.5V, GOOD_BAT = 1, charger detection not running 150 300 A 10 16 mA 0.5 0.7 V DC CHARACTERISTICS Supply Voltage VBUS POR VVBUS 0 VVBUSUVLO 1.4 VBUS Supply Current IVBUS VBUS Supply Current IVBUS12 VVBUS = 12V, GOOD_BAT = 1, charger detection not running VDP_SRC Voltage VDP_SRC IDP_SRC = 0 to 250A VDAT_REF Voltage VDAT_REF 0.25 0.4 V VLGC 0.8 2.0 V CHARGER DETECTION VLGC Voltage IDP_SRC Current IDP_SRC 7 10 A CDN Pulldown Resistor RDM_DWN 14.25 24.8 k CDP Pulldown Resistor RDP_DWN 14.25 24.8 k CDP and CDN Sink Current IDP_SINK IDM_SINK 50 150 A 0.3 A CDP and CDN Weak Sink IWEAK VCDN = 3.6V VBUS_LOW VBUS Detection Ratio VBUS_MID VVBUS = 5V VBUS_HIGH CDP and CDN Overvoltage Comparator Primary Detection Voltage Source Time 27.5 42.3 47 51.7 76 80 89 tVDP_SRC_ON VBUS Attach to CHG_DET tVBUS_CHG GOOD_BAT to SW_OPEN tGOOD_SW Figure 2, Figure 3 DCD Time Out tDCD_TMO VVBDET VBUS Detect Threshold Hysteresis 25 VVBUS = 5V, no load on CHG_DET From VVBUS > VVBDET to CHG_DET change, assuming DCD delay = 0ms; Figure 1, Figure 2, Figure 3 VBUS Detect Threshold Rising 22.5 % 4.2 V 46 ms 250 ms 15 20 ms 0.7 0.8 0.89 s 3.3 3.5 4 V VVBDET_HYST 50 mV USB ANALOG SWITCHES Analog Signal Range (Note 3, Note 4) On-Resistance RONUSB ICDP, ICDN = 10mA, VCDP, VCDN = 0 to 3V On-Resistance Match Between Channels RONUSB ICDP, ICDN = 10mA, VCDP, VCDN = 0.4V (Note 4) www.maximintegrated.com 0 3 VCCINT V 6 0.5 Maxim Integrated 3 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Electrical Characteristics (continued) (VVBUS = 3.5V to 5.5V, TA = 0C to +70C, unless otherwise noted. Typical values are at VVBUS = 5.0V, TA = +25C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 0.06 0.2 On-Resistance Flatness RFLATUSB ICDP, ICDN = 10mA, VCDP, VCDN = 0 to 3.3V (Note 4) Off-Leakage Current ILUSB(OFF) Switch open, VTDN or VTDP = 0.3V, 2.5V; VCDN or VCDP = 2.5V, 0.3V -360 360 nA On-Leakage Current ILUSB(ON) Switch closed, VCDN or VCDP = 0.3V, 2.5V -360 360 nA DIGITAL SIGNALS (GOOD_BAT, CHG_DET, SW_OPEN, CHG_AL_N) GOOD_BAT Input Logic High VIH GOOD_BAT Input Logic Low VIL 1.1 GOOD_BAT Pulldown RPD CHG_DET Output Logic High VOH ISOURCE = -3mA CHG_DET Output Logic Low VOL ISINK = 3mA SW_OPEN, CHG_AL_N Output Leakage IOUTLEAK SW_OPEN, CHG_AL_N Output Logic Low VOL_OD V 0.5 1 VIO = 5V, output is in highimpedance 2 -1 ISINK = 5mA V M 4.36 V 0.4 V +1 A 0.4 V DYNAMIC PERFORMANCE GOOD_BAT Debounce Time tGBDEB 4 ms VBUS Debounce Time tCDEB 5 ms Off-Capacitance COFF 2 pF CDN, CDP connected to TDN, TDP; applied voltage = 0.5VP-P, DC bias = 0V, f = 240MHz 4.5 pF RL = 50, f = 20kHz, VCDN, VCDP = 0.5VP-P -60 dB Human Body Model 15 IEC61000-4-2 Air-Gap Discharge 15 IEC61000-4-2 Contact 8 Human Body Model 2 On-Capacitance Off-Isolation CONCOM TDN, TDP applied voltage = 0.5VP-P, DC bias = 0V, f = 240MHz ESD PROTECTION CDN, CDP All Other Pins kV kV Note 2: All devices are 100% production tested at TA = +25C. Specifications over the operating temperature range are guaranteed by design. Note 3: VCCINT = min (VVBUS, +4.2V). Note 4: Not production tested. Guaranteed by design. www.maximintegrated.com Maxim Integrated 4 MAX14576/MAX14636/ MAX14637 USB Charger Detectors GOOD_BAT VBUS tVBUS_CHG + tDCD_TMO CHG_AL_N SW_OPEN CHG_DET CHARGER DETECTION COMPLETED Figure 1. Normal Charger Detection (No Dead Battery) GOOD_BAT VBUS tVBUS_CHG + tDCD_TMO tGOOD_SW CHG_AL_N SW_OPEN CHG_DET CHARGER DETECTION COMPLETED Figure 2. Charger Detection with Dead Battery GOOD_BAT VBUS IGNORED tVBUS_CHG + tDCD_TMO tGOOD_SW CHG_AL_N SW_OPEN CHG_DET CHARGER DETECTION COMPLETED Figure 3. Charger Detection and Phone Flashing www.maximintegrated.com Maxim Integrated 5 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Typical Operating Characteristics (VVBUS = 5.0V, TA = +25C, unless otherwise noted) VBUS SUPPLY CURRENT vs. SUPPLY VOLTAGE VBUS SUPPLY CURRENT vs. SUPPLY VOLTAGE toc01 12 8 6 8 TA = +70C 6 4 4 2 0 -5 0 5 10 15 20 25 0 5 10 15 20 25 30 -5 0 5 VVBUS (V) 15 20 25 30 ANALOG SWITCH FREQUENCY RESPONSE 4.5 toc05 20 toc04 5.0 10 VVBUS (V) ANALOG SWITCH ON-RESISTANCE vs. CDN/CDP VOLTAGE 0 4.0 TA = +25C 3.0 2.5 -20 MAGNITUDE (dB) TA = +70C 3.5 TA = 0C 2.0 1.5 ON-LOSS -40 -60 OFF-ISOLATION -80 1.0 -100 0.5 0.0 0 1 2 3 4 -120 0.1 CDN.CDP LEAKAGE CURRENT vs. TEMPERATURE toc06 200 0.5 VCDN/CDP = 3.3V 180 DIFFERENTIAL SIGNAL (V) OFF-LEAKAGE 120 100 80 60 ON-LEAKAGE 40 10 100 1000 USB EYE TRANSMIT DIAGRAM (MEASURE AT TEST POINT TP3 AS DEFINED IN USB 2.0 SPECIFICATION) 0.4 160 140 1 FREQUENCY (MHz) CDN/CDP VOLTAGE (V) toc07 ON-RESISTANCE () CDP/CDN 15k TO GND GOOD_BAT = LOW 0 -5 VVBUS (V) LEAKAGE CURRENT (nA) 6 2 CDP/CDN 15k TO GND GOOD_BAT = HIGH 0 30 TA = +70C 4 2 CDP/CDN SHORTED GOOD_BAT = HIGH TA = 0C TA = +25C 10 IVBUS (mA) TA = +70C toc03 12 TA = 0C TA = +25C 10 IVBUS (mA) IVBUS (mA) 8 toc02 12 TA = 0C TA = +25C 10 VBUS SUPPLY CURRENT vs. SUPPLY VOLTAGE 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 20 0 0 10 20 30 40 TEMPERATURE (C) www.maximintegrated.com 50 60 70 -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) Maxim Integrated 6 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Pin Configuration TOP VIEW CHG_DET VBUS CDN CDP GND 9 8 7 6 MAX14576 MAX14636 MAX14637 10 1 2 SW_OPEN TDN + 3 5 GOOD_BAT 4 TDP CHG_AL_N UTQFN (1.6mm x 2.1mm) Pin Description PIN NAME FUNCTION Data Switches Open Indicator. SW_OPEN is low when switches are closed. SW_OPEN is high impedance when switches are open. SW_OPEN is an open-drain output. Connect SW_OPEN to a pullup resistor externally. 1 SW_OPEN 2 TDN USB Transceiver D- Connection 3 TDP USB Transceiver D+ Connection 4 CHG_AL_N Charging Allow Indicator. CHG_AL_N is low when VBUS is valid and charging is allowed. CHG_AL_N is an open-drain output. Connect CHG_AL_N to a pullup resistor externally. 5 GOOD_BAT Good Battery Digital Input. Set GOOD_BAT low for a dead battery and enable USB BC 1.2 compliant dead battery charging. Set GOOD_BAT high for a good battery. 6 GND Ground 7 CDP USB Connector D+ Connection 8 CDN USB Connector D- Connection 9 VBUS USB VBUS Input. Bypass VBUS to ground with a 0.1F ceramic capacitor as close to the device as possible to achieve high 15kV HBM ESD protection. 10 CHG_DET www.maximintegrated.com Charger Detection Push-Pull Output. CHG_DET indicates the capability of the connected charger type (see Tables 1, 2, 3). Maxim Integrated 7 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Detailed Description The MAX14576/MAX14636/MAX14637 detect battery charging sources as defined in USB Battery Charging Specification Rev 1.2 (USB BC 1.2). These devices are capable of detecting multiple USB battery charging methods including SDP, CDP, and DCP. The MAX14636/ MAX14637 are also capable of detecting Apple chargers, and other nonstandard types (e.g., TomTom charger, and PC PS2 adapter). The devices also feature USB BC1.2 defined dead battery option support. USB Charger Detection The charger detection starts when VBUS the threshold. After the type of charger is the MAX14576/MAX14636/MAX14637 set CHG_AL_N, and CHG_DET according to type found (Table 1, Table 2, Table 3). rises above determined, SW_OPEN, the charger In case of SDP and CDP detection, dead battery mode (DB mode) is entered if GOOD_BAT is low at the end of charger detection. After entering in DB mode, a 45 minute timer starts, VDP_SRC is set on CDP and the device is allowed to charge at a 100mA rate. During DB mode, if GOOD_BAT goes high, then DB mode ends, VDP_SRC is removed and USB switches are closed. If GOOD_BAT goes low again before the 45 minute timer expires, DB mode is entered again. If GOOD_BAT is low when the 45 minute timer expires, DB mode ends and the device is not allowed to charge until VBUS is removed and reconnected. For GOOD_BAT sensitivity in DB mode, the MAX14576/MAX14636 treat CDP as SDP and the MAX14637 treats CDP as DCP. USB Switches The switches between CDP/CDN and TDP/TDN are low capacitance and low resistance, and capable of passing Hi-Speed USB signals. The switches are normally open when no valid VBUS is present. When valid VBUS is applied, the switches act according to the charger found (Table 1, Table 2, Table 3). Table 1. Charger Detection and Events (MAX14576) INPUT ATTACHED CHARGING SOURCE GOOD_BAT OUTPUTS SW_OPEN CHG_AL_N CHG_DET USB SWITCHES SYSTEM X Hi-Z Low High Open Charge with full current High Low Low High Closed Charge with full current Low Hi-Z Low High Open Charge with full current High Low Low Low Closed Charge with 100mA Low Hi-Z Low Low Open Charge with 100mA PS2 X Hi-Z Low Low Open Charge with 100mA No Valid VBUS X Hi-Z Hi-Z Low Open X DCP CDP SDP/Apple(R) Charger/ TomTom(R) Charger* X = Don't care. *Detected as SDP after DCD timeout Apple is a registered trademark of Apple, Inc. TomTom is a registered trademark of TomTom International. www.maximintegrated.com Maxim Integrated 8 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Table 2. Charger Detection and Events (MAX14636) ATTACHED CHARGING SOURCE INPUT OUTPUTS GOOD_BAT SW_OPEN CHG_AL_N CHG_DET USB SWITCHES SYSTEM X Hi-Z Low High Open Charge with full current High Low Low High Closed Charge with full current Low Hi-Z Low High Open Charge with full current High Low Low Low Closed Charge with 100mA Low Hi-Z Low Low Open Charge with 100mA PS2 X Hi-Z Low Low Open Charge with 100mA No Valid VBUS X Hi-Z Hi-Z Low Open X DCP/Apple Charger/ TomTom Charger** CDP SDP X = Don't care. **TomTom charger detected as DCP after DCD timeout. Table 3. Charger Detection and Events (MAX14637) INPUT OUTPUTS ATTACHED CHARGING SOURCE GOOD_BAT SW_OPEN CHG_AL_N CHG_DET USB SWITCHES SYSTEM DCP/Apple Charger X Hi-Z Low High Open Charge with full current CDP X Low Low High Closed Charge with full current High Low Low Low Closed Charge with 100mA Low Hi-Z Low Low Open Charge with 100mA PS2 X Hi-Z Low Low Open Charge with 100mA No Valid VBUS X Hi-Z Hi-Z Low Open X SDP X = Don't care. www.maximintegrated.com Maxim Integrated 9 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Applications Information ESD Test Conditions Hi-Speed USB Hi-Speed USB requires careful PCB layout with 45 single-ended/90 differential controlled-impedance matched traces of equal lengths. Extended ESD Protection ESD protection structures are incorporated on all pins to protect against electrostatic discharges up to 2kV (Human Body Model) encountered during handling and assembly. CDN and CDP are further protected against ESD up to 15kV (HBM), 15kV (Air-Gap Discharge method described in IEC 61000-4-2) and 8kV (Contact Discharge Method described in IEC 61000-4-2) without damage. The VBUS input withstands up to 15kV (HBM) if bypassed with a 0.1F ceramic capacitor close to the pin. The ESD structures withstand high ESD both in normal operation and when the device is powered down. After an ESD event, the MAX14576/MAX14636/MAX14637 continue to function without latchup. RC 1M CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE CS 100pF RD 1.5k Figure 4. Human Body ESD Test Model www.maximintegrated.com Human Body Model Figure 4 shows the Human Body Model, and Figure 5 shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest that is then discharged into the device through a 1.5k resistor. IEC 61000-4-2 The IEC 61000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The major difference between tests done using the Human Body Model and IEC 61000-4-2 is higher peak current in IEC 61000-4-2 because series resistance is lower in the model. Hence, the ESD withstand voltage measured to IEC 61000-4-2 is generally lower than that measured using the Human Body Model. Figure 6 shows the IEC 61000-4-2 model, and Figure 7 shows the current waveform for the IEC 61000-4-2 ESD Contact Discharge test. IP 100% 90% DISCHARGE RESISTANCE STORAGE CAPACITOR ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test setup, test methodology, and test results. IR PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) AMPERES DEVICE UNDER TEST 36.8% 10% 0 0 tRL TIME tDL CURRENT WAVEFORM Figure 5. Human Body Current Waveform Maxim Integrated 10 MAX14576/MAX14636/ MAX14637 CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE CS 150pF RD 330 I 100% 90% DISCHARGE RESISTANCE STORAGE CAPACITOR IPEAK RC 50 to 100 USB Charger Detectors DEVICE UNDER TEST 10% tR = 0.7ns to 1ns t 30ns 60ns Figure 6. IEC 61000-4-2 ESD Test Model Figure 7. IEC 61000-4-2 ESD Generator Current Waveform Ordering Information/Selector Guide APPLE TomTom CHARGE CHARGE CURCURRENT RENT PART TEMP RANGE TOP MARK PIN-PACKAGE MAX14576CVB+T 0C to +70C 100mA MAX14636CVB+T 0C to +70C Full Current 100mA ABD 10 UTQFN Full Current ABE MAX14637CVB+T 0C to +70C Full Current 10 UTQFN Not Supported ABG 10 UTQFN MAX14576EVB+T -40C to +85C MAX14636EVB+T -40C to +85C 100mA 100mA ABD 10 UTQFN Full Current Full Current ABE MAX14637EVB+T -40C to +85C Full Current 10 UTQFN Not Supported ABG 10 UTQFN + Denotes a lead(Pb)-free package/RoHS-compliant package. T = Tape and reel Part no longer available. Replaced by MAX14xxxCVB+T Chip Information PROCESS: BiCMOS www.maximintegrated.com Maxim Integrated 11 MAX14576/MAX14636/ MAX14637 USB Charger Detectors Revision History REVISION NUMBER REVISION DATE 0 9/12 Initial release -- 1 1/13 Removed future product asterisks from the MAX14636/MAX14637 11 2 1/14 Edited Functional Diagram/Typical Application Circuit 1 3 6/18 4 8/18 PAGES CHANGED DESCRIPTION Updated temperature range, Typical Operating Characteristics, and Ordering Information table Updated Ordering Information table 1-4, 6, 11 11 For pricing, delivery, and ordering information, please visit Maxim Integrated's online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated 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 and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. (c) 2018 Maxim Integrated Products, Inc. 12 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: MAX14636EVB+T MAX14637EVB+T MAX14576EVB+T