MM1373 参数 Datasheet PDF下载

MITSUMI

Detection of Lithium Ion Battery Overcharging MM1373

Detection of Lithium Ion Battery Overcharging

Monolithic IC MM1373

Outline

This IC detects overcharging of lithium ion batteries. It is designed for use with three or four battery cells, and

detects battery voltages for each cell. An overcharge detection delay time can be set using an external

capacitor. The overcharge detection signal output is open-collector, and goes low when overcharging is

detected.

Features

1. Consumption current

V

CEL

=3.8V

3.0µA typ.

2. Consumption current

V

CEL

=2.3V

0.3µA typ.

3. Input current between cell pins

V

CEL

=3.8V

±0.3µA max.

4. Overcharge detection voltage

A type

4.35V±50mV

5. Overcharge detection delay time

C

T

=0.22µF

1.5S typ.

6. Detection voltage can be changed to accommodate customer needs

Package

SOP-8C

SOP-8E

Applications

1. For secondary protection of lithium ion battery packs

Overcharge Detection ICs

MM1373

Rank A

Rank B

Rank C

Rank D

Rank E

Detection voltage

4.350V

4.250V

4.225V

4.130V

4.450V

Hysteresis

250mV

250mV

None

None

100mV