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參數資料
| 型號： | MM1309CF |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Protection of Lithium Ion Batteries (three cells in series) |
| 中文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 137K |
| 代理商： | MM1309CF |
MITSUMI
Protection of Lithium Ion Battery (three cells in series) MM1309
Protection of Lithium Ion Batteries (three cells in series)
Monolithic IC MM1309
Outline
This is a 3-cell series protection IC is for protecting a lithium ion battery from overcharging and excess
discharging. If abnormalities occur during charging and excess voltage is applied, it has a function that turns
off the external FET switch (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.
These functions comprise a protection circuit, with few external parts, for lithium ion batteries.
Features
1. Current consumption (for V
CC
pin)
2. Current consumption (for V
CC
pin)
3. Current consumption (for V
CC
pin)
4. Current consumption (for V
CC
pin)
5. Current consumption (for BATH pin)
6. Current consumption (for BATH pin)
7. Current consumption (for BATH pin)
8. Charge prohibit voltage (Ta=
-
20°C~+70°C)
V
CELL
=4.4V
V
CELL
=4.2V
V
CELL
=3.8V
V
CELL
=2.2V
V
CELL
=4.4V
V
CELL
=3.8V
V
CELL
=2.2V
700μA typ.
300μA typ.
25μA typ.
0.1μA max.
12μA typ.
8μA typ.
1μA typ.
B : 4.35V±50mV
C : 4.25V±50mV
V
CELLU
-
45mV
B : 4.20V typ.
C : 4.10V typ.
2.40V±0.09V, 2.35V±0.09V
B : 2.65V±0.16V
C : 2.60V±0.16V
250±75mV
9. Charge prohibit release voltage
10.Charge prohibit detection function operation voltage
11.Excess discharge detection voltage
12.Discharge resumption voltage
13.Excess discharge detection hysteresis voltage
Package
SOP-8C (MM1309 F)
*
The box represents the rank resulting from the combination of protection functions.
Applications
1. Notebook PCs
2. Portable terminals
3. Others
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