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參數資料
| 型號： | MM1248 |
| 廠商： | MITSUMI ELECTRIC |
| 英文描述： | Control of Lithium Ion Battery Charging and Discharging |
| 中文描述： | 控制的鋰離子電池充放電 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 210K |
| 代理商： | MM1248 |
MITSUMI
Control of Lithium Ion Battery Charging and Discharging MM1248
Control of Lithium Ion Battery Charging and Discharging
Monolithic IC MM1248
Outline
This IC was developed for use in controlling charging and discharging of lithium ion batteries (battery modules
with three cells connected in series). In charging control, the voltage of the battery module as a whole is
controlled in constant-voltage control. Discharge control and monitoring of overvoltage rely on monitoring of
the voltages of individual cells.
Features
1. Charging control voltage
2. Overcharge detection voltage
3. Internal circuit for setting dead time (for overvoltage detection, discharge control)
4. Low consumption current on overdischarge
5. High-precision internal overvoltage detection startup circuit (cell voltage 4.2V or higher at end of charging)
V
BATH
=12.465V±1.5% (Ta=
-
20°C~70°C)
V
CELL
=4.335V±1.5% (Ta=
-
20°C~70°C)
I
BATH
3=1μA typ.
Package
SOP-16B (MM1248XF)
Absolute Maximun Ratings
(Except where noted otherwise, Ta=25°C)
Item
Symbol
Ratings
Units
Storage temperature
T
STG
-
40~+125
°C
Operating temperature
T
OPR
-
20~+70
°C
Input voltage
V
IN
max.
18
V
Charge voltage
V
BAT
max.
15
V
Power supply voltage
V
CC
max.
15
V
Voltage applied to OV2 pin
V
O
2 max.
10
V
Allowable loss
Pd
350
mW
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