AiT Semiconductor has unveiled the A4063, 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 2 A. With a 1.5 MHz switching frequency, the A4063 provides a small, simple and efficient solution to fast charge single-cell Li-Ion battery.
When the input voltage is lower than 4.35 V, the chip enters the SLEEP MODE, the power consumption will be reduced to 60 μA. Built-in temperature protection and load short-circuit protection ensure the high reliability of the IC. Two LEDs can display various charging states.
The A4063 is available in the PSOP8 package.
Key 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
Key Applications
- Mobile Phone
- Digital Camera
- Portable Devices
- Various Chargers
- Pads
