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
Pin Assignment
1
2
3
20 19 18 17 16 15 14 13 12 11
4
5
1 2 3 4 5 6 7 8 9 10
TSOP-20A
6
7
8
9
10
OV
N.C
CS
N.C
DCHG
N.C
CDC
COL
COV
GND
11
12
13
14
15
16
17
18
19
20
SEL
N.C
CON
N.C
V1
V2
V3
V4
N.C
V
CC
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
