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MITSUMI
Lithium-Ion Battery Charge Control (with timers) MM1639
Lithium-Ion Battery Charge Control (with timers)
Monolithic IC MM1639
Outline
This is a lithium-ion battery charge control IC. It incorporates constant-voltage and constant-current circuits for easy implementation of lithium-ion battery charge. It includes functions to disable charging to overdischarged batteries, disable charging due to abnormal temperature, etc., and timer functions. It is also equipped with a 2-channel LED driver to allow the charge status to be displayed.
Features
1. Operating supply voltage
2.7~5.9V
2. Operating ambient temperature
-20~70ºC
3. Current consumption
5.0mA typ.
4. Low voltage detection voltage
2.0V typ.
5. BAT pin output voltage
4.20±0.03V (Ta=0~50ºC)
6.
MM1639 Datasheet
