AS3611-BDFM-A ams

austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems datasheet is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: ams sales ams.com Please visit our website at www.ams.com Datasheet AS3610/11 Switching Charger for Li-Ion/LiPo/LiFePO4 powered devices 1 General Description 2 Key Features DCDC USB Charger The AS3610/11 is a highly integrated standalone or optional IC controlled step down charger. All supervision and regulation 1.25A, 3MHz DCDC Charger functions are realized internal and independent from the processor. OTG Boost with low IQ (700A) up to 500mA The 100/500mA USB current limit can be set via a dedicated control 22V over voltage protection pin. Other limits like 900mA can be programmed in the OTP ROM. Seamless 100% Mode In addition, the Charger can generate a 5.05V output supply at VBUS for USB OTG. Reverse Polarity protection on VBUS AS3610 features an I2C interface which can be used by a micro- NTC support controller to fully control all functionality of the chip. Charging current Low side LED driver and EOC current can be set with external resistors and adjusted via register settings if needed. No external shunt resistor required AS3611 is a stand-alone version of this charger IC. Charging and No Battery operation without voltage drop EOC current is set by resistor only. Functions like OTG boost mode Package: MLPD14 3x3mm or max current limit for wall adapter mode can be enabled using dedicated pins. 3 Application The device is ideal as 1 Cell LiIon, LiPo or LiFePO4 charger for Figure 1. AS3610/11 Block Diagram mobile phones and portable devices. www.austriamicrosystems.com/Battery-Chargers/AS3610 1.01 1 - 25 ams AG Technical content still valid