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MM1357 Datasheet(PDF) 1 Page - Mitsumi Electronics, Corp.

Part No. MM1357
Description  Control of Lithium Ion Batteries Monolithic IC
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Maker  MITSUMI [Mitsumi Electronics, Corp.]
Homepage  https://www.mitsumi.co.jp/index_e.html

MM1357 Datasheet(HTML) 1 Page - Mitsumi Electronics, Corp.

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Control of Lithium Ion Batteries (switching regulator secondary) (two cells) MM1357
Control of Lithium Ion Batteries (switching regulator secondary) (two cells)
Monolithic IC MM1357
This IC is used to control two-cell chargers and the secondary side of switching regulators; it features
enhanced functions for current switching and for overcharge detection and other kinds of protection. The
control output is capable of driving a photocoupler LED. The charging current can be switched between high
and low currents, and each can also be varied externally.
1. Charging voltage
: Can be set externally
2. Charging current (switchable between high and low levels, variable)
High : 320mV typ.
Low : 145mV typ.
3. Reference voltage
: 1.207V typ.
1. Switching regulator
2. AC adapter
3. Lithium ion battery charger

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