Outline

This IC is a high precision constant voltage constant current power source controller for lithium ion batteries serving as power drivers for P-MOS FET. It was developed for use with one to three cell chargers, and the constant current value can be set freely with external resistance. It has a built-in amplifier for detecting low battery voltage. Using this IC enables the easy addition of a lithium ion battery charging function to conventional battery-charging devices.

Features

1. Output voltage (Ta=-20°C+~70°C) 3Cell : 12.3V/12.6V±150mV

2Cell : 8.2V/8.4V±100mV

1Cell : 4.1V/4.2V±50mV

2. Current consumption 250µA typ.

3. Constant current output set by external resistance

Current limit (reference voltage) 0.1V=external resistance current value

4. Low voltage detection function (LV) 2.0V/cell

Applications

1. For charging lithium ion batteries

2. High-precision

Stable power sources for all types of equipment