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
-20~70ÂșC
3.
Current consumption
5.
0mA typ.
4.
Low
voltage detecti...