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MM1357 - Control of Lithium Ion Batteries

General Description

Pin no.

Output pin for charging control An external photocoupler is controlled for constant-current, constant-voltage charging control.

2 CFB Input An external capacitor (approx.

Key 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. Features 1. Charging voltage 2. Charging current (switchable between high and low levels, variable) 3. Reference voltage : Can be set externally High : 320mV typ. Low : 145mV typ. : 1.207V typ. Package SOP-14B.

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Datasheet Details

Part number MM1357
Manufacturer Mitsumi Electric
File Size 145.20 KB
Description Control of Lithium Ion Batteries
Datasheet download datasheet MM1357 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MITSUMI Control of Lithium Ion Batteries (switching regulator secondary) (two cells) MM1357 Control of Lithium Ion Batteries (switching regulator secondary) (two cells) Monolithic IC MM1357 Outline 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. Features 1. Charging voltage 2. Charging current (switchable between high and low levels, variable) 3. Reference voltage : Can be set externally High : 320mV typ. Low : 145mV typ. : 1.207V typ.