MM1412 查看數據表（PDF） - Mitsumi
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MM1412 Datasheet PDF : 9 Pages
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MITSUMI
Protection of Lithium Ion Batteries MM1414
Protection of Lithium Ion Batteries
Monolithic IC MM1414
Outline
This IC protects lithium ion batteries in the event of overcharge, overdischarge and overcurrent. It has the
following two functions: an overcurrent detection function that turns the external FET-SW off when a problem
occurs during charging, etc. and excess voltage is impressed on each battery for longer than a certain time,
and an overdischarge detection function that turns the external FET-SW off when battery voltage drops below
a certain voltage during discharge, in order to prevent battery overdischarge. When these functions operate,
the IC is put into low consumption current mode. It also has an overcurrent detection function that turns the
FET-SW off when excess current flows due to a short or the like.
Series Table
Temperature conditions A: Ta=-25 ~ 75°C, B: Ta=-20 ~ 70°C, C: Ta=0 ~ 50°C,
D: Ta=0 ~ 40°C, E: Ta=-20 ~ 25°C
Package Overcharge
Model
detection
TSOP-20A voltage (V)
AV
CV
MM1414 DV
FV
GV
4.350±0.025
4.350±0.025
4.250±0.025
4.325±0.025
4.295±0.025
Overcharge
detection voltage
temperature
conditions
C
C
C
C
C
Overcharge
detection
hysteresis
voltage (V)
200±60
200±60
200±60
200±60
8±8
Overdischarge Overdischarge Overcurrent
detection
resumption detection
voltage (V)
voltage (V) voltage (mV)
2.00±0.10
2.30±0.10
2.30±0.10
2.30±0.10
2.30±0.10
3.00±0.15
3.00±0.15
3.00±0.15
3.00±0.15
3.00±0.15
150±15
150±15
150±15
100±15
150±15
Features
1. Consumption current (during overcharge)
VCELL = 4.4 CON = 0V
2. Consumption current (normal)
VCELL = 3.5V CON = 0V
3. Consumption current (during overdischarge) VCELL = 1.9V CON = 0V
4. Consumption current (during overdischarge) VCELL = 1.0V CON = VCC
5. Overcharge detection voltage (Ta = 0°C ~ 50°C)
55µA typ.
15µA typ.
0.5µA typ.
0.1µA max.
A, C, D, G; Load open 500kΩ or hight
F; Load open 1MEGΩ or hight
Package
TSOP-20A
Applications
IC for protection of lithium-ion batteries consisting of three or four cells
Notebook PC lithium - ion battery packs
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