A4055 Datasheet | AiT Semiconductor

AiT Semiconductor Inc. .ait-ic. BATTERY MANAGEMENT 800mA STANDALONE LINEAR LI-ION BATTERY CHARGER DESCRIPTION The A4055 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 A4055 automatically terminates the charge cycle when the charge current drops to 1/10 the...