A4054A Datasheet | AiT Semiconductor

AiT Semiconductor Inc. .ait-ic. 800mA STANDALONE LINEAR Li-ion BATTERY CHARGER THERMAL REGULATION DESCRIPTION The A4054A is a plete constant current / constant voltage linear charger for single cell Lithium-Ion batteries. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The A4054A automatically terminates the charge cycle when the charge current drops to 1/10 the...