ordering information appears at end of data sheet. general description the max14746/max14747 are a series of usb charger detectors with an integrated smart power selector? linear charger solutions that provide a single-chip solution for charging and charger detection. the max14746/max14747 charger detectors are compliant to usb battery charger detection rev 1.2* and 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 detect common proprietary charge adapters, including those from apple. the max14746/max14747 battery chargers feature smart power selector operation, allowing operation with dead or no battery present. the devices limit usb v bus current based on the detect charger source type. if the charger power source is unable to supply the entire system load, the smart-power control circuit supplements the system load with current from the battery. the devices protect against overvoltage faults up to 28v. this series of usb charger detectors are available with several options, with slight variations in, for example, power-up states. these variations are noted throughout this data sheet. there are five options available, with slight variations in, for example, power-up states (see ordering information ). the devices are available in a 25-ball, 0.4mm pitch wafer- level package (wlp), and are specified over the -40c to +85c extended temperature range. applications portable consumer devices portable digital cameras portable digital video cameras portable industrial devices benefts and features flexible system design to operate with any usb charger source ? compliant to usb battery charger rev 1.2 specifcation* ? supports proprietary usb charging sources, including apple ? d+/d- bias voltage supported easy to implement li+ battery charging ? smart power selector ? fully compliant with dead battery/weak battery charging according to usb 2.0 specifcation ? jeita charge protection ? thermal protection ? internal usb d+/d- switch to manage connection integrates high level of protection ? 28v tolerant input on vb ? 15kv human body model esd protection on cdp and cdn *except dcd timeout extended from 900ms to 2s for the max14746/max14747. smart power selector? is a trademark of maxim integrated products, inc. 19-8036; rev 0; 11/15 evaluation kit available max14746/max14747 usb detection with smart power selector li+ chargers abridged data sheet
chip information process: bicmos package 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. +denotes a lead(pb)-free/rohs-compliant package. *future productcontact factory for availability. part temp range bump-package max14746 bewa+ -40c to +85c 25 wlp max14747 ewa+* -40c to +85c 25 wlp package type package code outline no. land pattern no. 25 wlp w252j2+1 21-0453 refer to application note 1891 max14746/max14747 bat thm cap sys uok2/ext sfout gnd 10f 1f battery pack system load nvp cdn cdp vb 10f 1f c v bus v bus * *optional pmosfet for negative v bus protection ** *optional pmosfet connects sys and bat tdn d- tdp scl sda int d+ v io 1f usb 2.0 hi-speed host d+ d- idef optional inputs optional open-drain outputs fsus ctyp uok1 led micro-usb connector maxim integrated g 40 ordering information typical operating circuit max14746/max14747 usb detection with smart power selector li+ chargers www.maximintegrated.com abridged data sheet
revision number revision date description pages changed 0 11/15 initial release ? 2015 maxim integrated products, inc. 41 revision history 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 specifcations 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. max14746/max14747 usb detection with smart power selector li+ chargers for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com. abridged data sheet
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