MITSUMI

Protection of Lithium Ion Batteries MM1414

Protection of Lithium Ion Batteries

Monolithic IC MM1414

Outline

This IC is use to protect lithium-ion batteries consisting of three or four cells. It adopts a compact package

and has the functions of previous models, with functions for overcharge detection, overdischarge detection

and overcurrent detection. A dead time can be set externally.

Features

1. Overcharge detection voltage accuracy

±25mV/cell

2. Consumption current (Vcell=4.4V)

50µA typ.

3. Consumption current (Vcell=3.5V)

23µA typ.

4. Consumption current (Vcell=1.8V)

2µA typ.

5. Overcharge sensing dead time: can be set externally

6. PF detection: warning signal when cell voltage falls

Package

TSOP-20A

Applications

IC for protection of lithium-ion batteries consisting of three or four cells

MITSUMI

Pin Assignment

1

OV

11

SEL

2

N.C

12

N.C

3

CS

13

CON

4

N.C

14

N.C

5

DCHG

15

V1

6

N.C

16

V2

7

CDC

17

V3

8

COL

18

V4

9

COV

19

N.C

10

GND

20

TSOP-20A

13

68

24 579 10

20

16

13

19

17

15 14

12

18

11