FAN54511 - ON Semiconductor

FAN54511 Switch Mode Charger

The FAN5451x family of chargers includes an I2C controlled 3.2 A USB−compliant switch−mode charger. To facilitate fast system startup, the IC includes an optimized Power Path circuit which also accurately measures battery currents during charging and provides low impedance during discharge. The charging parameters and operating modes are programmable through.

Features

 Fully Integrated, High−Efficiency Charger for Single−Cell Li−Ion and Li−Polymer Battery Packs
 Power Path Circuit ensures Fast System Startup with a Dead Battery
 95% Charge Efficiency
 Charge Current Programmable up to 3.2 A
 10 mV Float Voltage Accuracy
 5% Charge Current Regulation Accuracy
 5 V, 1.5 A Boost Mode for USB OTG
 22 V DC Withstand Voltage on VBUS
 13.25 V Maximum Input Operating Voltage
 −2 V Input Reverse Polarity Protection www.onsemi.com VIN CIN VBUS CBUS SYS USB PHY D+ / GPO1 D−/ GPO2 VSYS D1 RD /STAT Processor ILIM DIS SDA SCL /INT /BUSOK /INOK F.