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 detecti...

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