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參數(shù)資料
| 型號： | MM1292L |
| 廠商： | MITSUMI ELECTRIC |
| 英文描述： | Protection of Lithium Ion Batteries (two cells in series) |
| 中文描述： | 保護鋰離子電池（2串聯(lián)電池） |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 190K |
| 代理商： | MM1292L |
MITSUMI
Protection of Lithium Ion Batteries (two cells in series) MM1292
Protection of Lithium Ion Batteries (two cells in series)
Monolithic IC MM1292
Outline
2-Cell Protection ICs
This IC is for protecting a lithium ion battery from overcharging, excess discharging, and overcurrent. If
abnormalities occur during charging and excess voltage is applied, it has a function that turns off the external
FET switch when voltage is applied to each battery beyond a specified time (overcharging detection). It also
has a function that turns off the external FET switch when the voltage for each battery falls below a set
voltage, to prevent excess discharge when discharging the battery (discharging detection). At that time, the IC
is switched to low current consumption mode. Also, when there is a large current flow due to shorting or other
reasons, there is a function for turning off the external FET switch (overcurrent detection).
These functions comprise a protection circuit, with few external parts, for lithium ion batteries.
Model name
Overcharge protection
Detection voltage
4.25±0.05V
4.25±0.05V
4.35±0.05V
4.10±0.05V
4.35±0.05V
4.215±35V
4.30±0.05V
4.25±0.05V
4.25±0.05V
4.25±0.05V
Overdischarge protection
Detection voltage
2.3V±0.1V
2.4V±0.1V
2.4V±0.1V
2.4V±0.1V
None
2.3V±0.1V
2.05V±0.1V
2.4V±0.1V
2.4V±0.1V
2.2V±0.1V
Overcurrent
Detection voltage
220±20mV
150±15mV
150±15mV
150±15mV
None
220±20mV
170±15mV
150±15mV
150±15mV
100±10mV
Hysteresis
10mV
200mV
200mV
10mV
10mV
10mV
220mV
220mV
220mV
220mV
Hysteresis
700mV
600mV
600mV
600mV
MM1302A
MM1292C
MM1292D
MM1302E
MM1302F
MM1302G
MM1292H
MM1292J
MM1292K
MM1292L
700mV
950mV
600mV
600mV
800mV
Features
1. Current consumption (during overcharging)
2. Current consumption (normal)
3. Current consumption (during excess discharging)
4. Current consumption (during excess discharging)
5. Overcharge detection voltage (Ta=
-
20°C~+70°C)
6. Hysteresis voltage
7. Excess discharge detection voltage
8. Discharge resumption voltage
9. Overcurrent detection voltage
10.Reset after overcurrent detection
11.Operating limit voltage
V
CELL
=4.5V
V
CELL
=3.5V
V
CELL
=1.9V
V
CELL
=1.0V
80μA typ.
13μA typ.
0.5μA typ.
0.1μA max.
4.25V±50mV (detection for each cell)
200mV±60mV (detection for each cell)
2.4V±0.1V (detection for each cell)
3.0V±0.1V (detection for each cell)
150mV±15mV
load release
0.9V max.
Package
SOP-8C, SOP-8D(MM1292 F)
*
The box represents the rank resulting from the combination of protection functions.
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