MAX14667 Dual USB Charger Adapter Emulator General Description Benefits and Features The MAX14667 is a dual USB charger adapter emulator with automatic host charger identification circuitry for USB dedicated chargers. ● Optimized for Charging Adapters • Flexible Device and Adapter Connection Order ● Faster Charging • Apple 2A Charging Capability • Samsung Galaxy Tablet 2A Charging Capability The device allows USB wall adapters, travel chargers, and other dedicated chargers to identify themselves as a USB dedicated charger to USB devices, an Apple charger to Apple products, and a Samsung Galaxy Tablet dedicated charger port to Samsung Galaxy Tablet devices. ● The device features a control input that allows for charger mode selection. The MAX14667 supports USB Battery Charger (BC) revision 1.2 specification compliant devices, including all major brand USB devices from Samsung, Nokia, Blackberry, LG, Apple devices, and Samsung Galaxy devices in autodetection 1A or autodetection 2A modes. Improved Charger Interoperability • Meets New USB BC Revision 1.2 Specification • Supports Samsung Galaxy Smartphones • Backwards Compatible with Previous USB BC Revisions • Meets China YD/T1591-2009 Charging Specification ● Greater User Flexibility • CB_ Pins Control Charger Mode ● Saves Space on Board • 2.9mm x 1.6mm, 8-Pin SOT23 Package • High-ESD Human Body Model (HBM) Protection on DP and DM The MAX14667 is available in an 8-pin (2.9mm x 1.6mm) SOT23 package, and is specified over the -40°C to +85°C extended temperature range. Applications ● USB Wall Charger and Travel Adapter ● USB Car Charger and Cigarette Lighter Adapter ● Universal Charger Including iPod®/iPad®/iPhone® iPod®/iPad®/iPhone® are registered trademarks of Apple, Inc. Ordering Information appears at end of data sheet. Typical Operating Circuit DC-DC VCC VCC 0.1µF GND VCC CB1 DP1 D+ DM1 D150µF MAX14667 GND USB A CONNECTOR VBUS GND DP2 D+ DM2 D- CB2 USB A CONNECTOR VBUS 150µF For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX14667.related. 19-6729; Rev 0; 6/13 MAX14667 Dual USB Charger Adapter Emulator Absolute Maximum Ratings (All voltages referenced to GND.) VCC, CB_, DP_, DM_...............................................-0.3V to +6V Continuous Current into Any Terminal...............................±50mA Continuous Power Dissipation (TA = +70ºC) SOT23 (derate 5.2mW/ºC above +70ºC) .................412.4mW Operating Temperature Range.............................-40°C to +85ºC Maximum Junction Temperature...................................... +150ºC Storage Temperature Range..............................-65ºC to +150ºC Lead Temperature (soldering, 10s).................................. +300ºC Soldering Temperature (reflow) ....................................... +260ºC 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) SOT23 Junction-to-Ambient Thermal Resistance (θJA).........194ºC/W Junction-to-Case Thermal Resistance (θJC)................70ºC/W Note 1: 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. Electrical Characteristics (VCC = 3.0V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +5.0V, TA = +25°C, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX 3 5.5 4.75 5.5 UNITS POWER SUPPLY Operating Power-Supply Range VCC Supply Current VCC ICC Apple/Samsung divider valid range V VCC = 5.0V 45 65 µA Power-On Reset POR 1.5 V POR Delay tPOR 100 ms VDP_, VDM_ 0 VCC V VDP__ = 0.7V, IDM_SINK = 100µA to GND 4.5 11 Ω tON CB_ = VCC to 0, 0 to VCC 4 µs RPD 350 500 700 kΩ ANALOG SWITCH Analog Signal Range On-Resistance of DP_/DM_ Short RSHORT DYNAMIC CB_ Switching Time INTERNAL RESISTORS DP_/DM_ Short Pulldown 40 VCC Bias VAP1(2)A_P(M) VCC = 4.75V, 5.5V 39 40 41 %Vcc 54 VCC Bias VAP1(2)A_M(P) VCC = 4.75V, 5.5V 52.6 53.6 54.6 %Vcc 25 VCC Bias VSSG_P/M VCC = 4.75V, 5.5V 24 25 26 %Vcc www.maximintegrated.com Maxim Integrated │ 2 MAX14667 Dual USB Charger Adapter Emulator Electrical Characteristics (continued) (VCC = 3.0V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +5.0V, TA = +25°C, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN CB_ Input Logic High VIH CB_ Input Logic Low VIL TYP MAX UNITS 1.4 V 0.4 V µA LOGIC INPUT (CB) CB_ Input Leakage Current ICB_ VIN = 0, VIL, VIH, 5.5V -1 +1 Human Body Model ±15 Contact Model ±6 ESD PROTECTION ESD Protection Level (DP_ and DM_ Only) VESD kV Comparator Characteristics (Note 4) (VCC = 4.75V to 5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +5.0V, TA = +25°C, unless otherwise noted.) (Note 2) PARAMETER SYMBOL DM1 Comparator Threshold VDM1F DM1 Comparator Hysteresis DM2 Comparator Threshold VDM2F DM2 Comparator Hysteresis DP Comparator Threshold VDPR DP Comparator Hysteresis DM_ falling CONDITIONS MIN TYP MAX Autodetection 1A 40 41 42 Autodetection 2A 31 32 33 1 %VCC 6.31 7 7.62 %VCC %VCC DM_ falling DP_ rising 1 Autodetection 1A 45 46 47 Autodetection 2A 57 58 59 1 UNITS %VCC %VCC %VCC Note 2: All units are 100% production tested at TA = +25°C. Specifications over operating temperature range are guaranteed by design. Note 3: The device is operational from 3.0V to 5.5V. For the resistor-divider equivalent network to function properly, keep VCC within the 4.75V to 5.5V range. Note 4: The comparators are disabled during the POR delay. www.maximintegrated.com Maxim Integrated │ 3 MAX14667 Dual USB Charger Adapter Emulator Typical Operating Characteristics (VCC = 5.0V, TA = +25°C, unless otherwise noted.) 6 4 VCC = 3.0V 2 0 VCC = 5.5V VDP_ (V) LOGIC-INPUT THRESHOLD vs. SUPPLY VOLTAGE MAX14667 toc04 1.8 LOGIC-INPUT THRESHOLD (V) 70 60 50 TA = +85°C 40 30 20 TA = +25°C 1.6 0 3.5 4.0 120 VCC = 5.5V VCB1 OR VCB2 = 0V 100 80 60 40 20 TA = -40°C 3.0 140 SUPPLY CURRENT vs. LOGIC LEVEL 4.5 5.0 5.5 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VCC (V) VCB_ USB-COMPLIANT DEVICE ATTACH EVENT CB LOGIC HIGH TO LOGIC LOW EVENT MAX14667 toc05 MAX14667 toc06 TRACE 1: CB_ TRACE 2: DP_ TRACE 3: DM_ PURPLE LINE = DP_ BLUE LINE = DM_ 1.4 CH1 Ampl 5.30V CB_ RISING 1.2 MAX14667 toc03 CB_ = VCC 10 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.0 80 SUPPLY CURRENT (µA) ON-RESISTANCE (Ω) 8 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX14667 toc02 IDP_ = 10mA SUPPLY CURRENT (µA) 10 MAX14667 toc01 DP_/DM_ SHORT ON-RESISTANCE vs. VDP_ 1.0 CH2 Ampl 680mV 0.8 0.6 CB_ FALLING 0.4 0.2 0 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) www.maximintegrated.com 5.0 5.5 1ms/div 10µs/div Maxim Integrated │ 4 MAX14667 Dual USB Charger Adapter Emulator Pin Configuration TOP VIEW + DP1 1 8 DM1 GND 2 CB2 3 6 DP2 4 5 DM2 MAX14667 7 CB1 VCC SOT23 Pin Description PIN NAME FUNCTION 1 DP1 USB D+ Connection for Connector One 2 GND IC Ground; Return to the Transformer Output 3 CB2 Control Bit for Connector Two 4 DP2 USB D+ Connection for Connector Two 5 DM2 USB D- Connection for Connector Two 6 VCC CB1 Power Supply. Bypass VCC with a 0.1µF ceramic capacitor as close as possible to the pin. 7 8 DM1 USB D- Connection for Connector One www.maximintegrated.com Control Bit for Connector One Maxim Integrated │ 5 MAX14667 Dual USB Charger Adapter Emulator Functional Diagram VCC VCC MAX14667 DP1 DM1 500kΩ VDP DP CB1 VDM1 DM1 VDM2 DM2 CONTROL LOGIC CONNECTOR 1 POR CB2 CONTROL LOGIC CONNECTOR 2 VCC VDP DP VDM1 DM1 VDM2 DM2 DP1 DM1 500kΩ www.maximintegrated.com Maxim Integrated │ 6 MAX14667 Dual USB Charger Adapter Emulator Detailed Description The MAX14667 is a dual USB host adapter emulator with automatic host charger identification circuitry for USB dedicated chargers. The device allows USB wall adapters, travel chargers, and other dedicated chargers to identify themselves as a USB-dedicated charger to USB devices, an Apple charger to Apple products, and a Samsung Galaxy tablet dedicated charger port to Samsung Galaxy tablet devices. Resistor-Dividers The MAX14667 features internal resistor-divider equivalent networks for biasing data lines to provide support for Apple-compliant devices as well as Samsung Galaxy Tablets. Mode Control The device features two digital inputs, CB1 and CB2, for mode selection. Connect CB_ to a logic-level high voltage to place the corresponding channel in autodetection 2A charger mode or to a logic-level low voltage to place the corresponding channel in autodetection 1A charger mode. See Table 1. Autodetection The MAX14667 features Autodetection 1A and autodetection 2A for dedicated chargers in which the device monitors the voltages at DM_ and DP_ to determine the type of device attached. When the voltage at DM_ is VDM1F or higher, and the voltage at DP_ is VDPR or lower, the voltage remains unchanged. If the voltage at DM_ is forced below the VDM1F threshold, the internal switch disconnects DM_ and DP_ from the resistor-dividers and DM_ and DP_ are shorted together for USB-dedicated charging mode. If the Samsung Galaxy Tablet device is connected, DM_ and DP_ are shorted together and connected to the correct resistor-divider for Samsung Galaxy Tablet dedicated charging mode. Once the charging voltage is removed, the short between DP_ and DM_ is disconnected. ±15kV ESD Protection As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic discharges encountered during handling and assembly. The DP_ and DM_ lines have extra protection against static electricity. Maxim’s engineers have developed state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD structures withstand high ESD in normal operation and while the device is powered down. After an ESD event, the MAX14667 continues working without latchup, whereas competing products can latch and must be powered down to remove latchup. ESD protection can be tested in various ways. The DP_ and DM_ lines of this product family are characterized for protection to the following limits: 1) ±15kV using the Human Body Model 2) ±6kV using the Contact Discharge method 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. Table 1. Digital Input State for MAX14667 CB USB B.C. 1.2 Specification Samsung Galaxy Tablet Apple 1 Autodetection 2A Supports all compliant devices Charge at 2A Appears as Apple 2A charger 0 Autodetection 1A Supports all compliant devices Charge at 2A Appears as Apple 1A charger www.maximintegrated.com Maxim Integrated │ 7 MAX14667 Dual USB Charger Adapter Emulator Package Information Ordering Information PART TEMP RANGE PINPACKAGE TOP MARK MAX14667EKA+T -40°C to +85°C 8 SOT23 AETH +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Chip Information 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. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 8 SOT23 K8+2 21-0078 90-0176 PROCESS: BiCMOS www.maximintegrated.com Maxim Integrated │ 8 MAX14667 Dual USB Charger Adapter Emulator Revision History REVISION NUMBER REVISION DATE 0 6/13 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. 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. © 2013 Maxim Integrated Products, Inc. │ 9