FEATURES
Seamless Transition Between Power Sources: Li-Ion
Battery, USB, and 6V to 36V External Supply
n High Effi ciency 1.2A Charger from 6V to 36V Input
n Load Dependent Charging from USB Input
Guarantees Current Compliance
n 215mΩ Internal Ideal Diode plus Optional External
Ideal Diode Controller Provides Low Loss Power
Path When External Supply/USB Not Present
n Constant-Current/Constant-Voltage Operation with
Thermal Feedback to Maximize Charging Rate
without Risk of Overheating
n Selectable 100% or 20% Current Limit (e.g., 500mA/
100mA) from USB Input
n Preset 4.1V Charge Voltage with 0.8% Accuracy
n C/10 Charge Current Detection Output
n NTC Thermistor Input for Temperature Qualifi ed
Charging
n Tiny (6mm × 3mm × 0.75mm) 22-Pin DFN Package
