MM1332

MITSUMI Control of Lithium Ion Batteries Charging MM1332 Control of Lithium Ion Batteries Charging Monolithic IC MM1332 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 250µA typ. set by external resistance 0.1V=external resistance current value 2.0V/cell 2. Current consumption 3. Constant current output Current limit (reference voltage) 4. Low voltage detection function (LV) Package SOP-8C, SOP-8E (MM1332 F) The box represents the output (charging) voltage rank. * Applications 1. For charging lithium ion batteries 2. High-precision Stable power sources for all types of equipment Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Output voltage SW input voltage (Ta=25°C) Symbol TSTG TOPR VCC max. VO max. VSW Pd Rating -40~+125 -20~+70 -0.3~+18 -0.3~VCC -0.3~VCC+0.3 300 Units °C °C V V V mW Allowable power dissipation MITSUMI Control of Lithium Ion Batteries Charging MM1332 Electrica...