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參數資料
| 型號： | MM1291AF |
| 廠商： | MITSUMI ELECTRIC CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Protection of Lithium Ion Batteries (one cell) |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 172K |
| 代理商： | MM1291AF |
MITSUMI
Protection of Lithium Ion Batteries (one cell) MM1291
Protection of Lithium Ion Batteries (one cell)
Monolithic IC MM1291
Outline
1-Cell Protection ICs
This is a protection IC for one-cell series that protects lithium ion batteries during excess charging,
discharging, or 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 functions for turning off the external FET switch
(overcurrent detection). These function comprise a protection circuit, with few external parts, for lithium ion
batteries.
Package
Overcharge
detection
Hysteresis
Dead time
voltage
4.35V
200mV
4.25V
200mV
4.10V
25mV
4.35V
25mV
4.35V
27mV
4.225V
27mV
4.35V
200mV
4.25V
270mV
4.25V
200mV
4.30V
270mV
Overdischarge
Release
detection
*
2.6V 2.4V
*
2.6V 2.4V
*
2.6V 2.4V
*
2.6V 2.4V
*
2.6V 2.4V
*
2.6V 2.4V
*
2.6V 2.4V
2.3V
2.3V
2.3V
Overcurrent detection
voltage
Delay
SOP-8
MM1291AF
VSOP-8
AW
BW
Overcurrent Detec time
100mV
100mV
150mV
100mV
100mV
100mV
50mV
125mV
50mV
125mV
shot-mode
No
No
No
No
No
No
0.45V
0.45V
0.9V
0.45V
2.9V
2.9V
2.9V
2.9V
2.9V
2.9V
2.9V
2.9V
2.9V
2.9V
BF
CF
DF
EF
GF
HF
HW
JW
KF
MW
at
Ctd=
0.082μF
min. 0.5S
typ. 1S
max. 1.5S
min. 5mS
typ. 10mS
max. 15mS
min. 5mS
typ. 10mS
max. 15mS
Note : Under open-load conditions, returns to normal mode from overcurrent mode.
(For MM1291A to G, J, M, 5M
or higher; for MM1291H, K, 50M
or higher)
相關PDF資料 |
PDF描述 |
|---|---|
| MM1293 | Protection of Lithium Ion Batteries (three cells in series) |
| MM1294 | Protection of Lithium Ion Batteries (four cells in series) |
| MM1304 | Variable Gain Amplifier (built-in Y LPF, C BPF) Monolithic IC MM1304 |
| MM1305 | Remaining Battery Power Display |
| MM1309BF | Protection of Lithium Ion Batteries (three cells in series) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MM1292 | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Protection of Lithium Ion Batteries (two cells in series) |
| MM1292C | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Protection of Lithium Ion Batteries (two cells in series) |
| MM1292D | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Protection of Lithium Ion Batteries (two cells in series) |
| MM1292H | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Protection of Lithium Ion Batteries (two cells in series) |
| MM1292J | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Protection of Lithium Ion Batteries (two cells in series) |
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