DESCRIPTION

The A4063 is a constant current, constant voltage Li-Ion battery charger that uses a current mode PWM step down switching architecture. Using DC-DC control mode, the charge current is set by an external resistor, up to 2A. With a 1.5MHz switching frequency, the A4063 provides small, simple and efficient solution to fast charge single cell Li-Ion battery.

When the input voltage is lower than 4.35V, the chip enters the SLEEP MODE, the power consumption will be reduced to 60μA. Built-in temperature protection and load short-circuit protection ensure high reliability of the IC. There are two LED can display various charging states.

The A4063 is

available in PSOP8 p acka ge.

FEATURES

? Constant current mode DC-DC PWM control

? Constant voltage LDO control

? 1.5MHz switching frequency

? Anti reverse connection

? Automatic sleep mode for low power

consumption

? Automatic recharge

? Available in PSOP8 package APPLICATION

? Mobile Phone

? Digital Camera

? Portable Devices

? Various Chargers

? Pads