Datasheet > MM1291AF

MM1291AF

更新时间： 2024-01-30 15:40:53

品牌	Logo	应用领域
三美电机 - MITSUMI		电池
页数	文件大小	规格书
7页	172K
描述
Protection of Lithium Ion Batteries (one cell)

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技术参数
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MM1291AF 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

MM1291AF 数据手册

Protection of Lithium Ion Batteries (one cell) MM1291

MITSUMI

Protection of Lithium Ion Batteries (one cell)

Monolithic IC MM1291

Outline

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.

1-Cell Protection ICs

Overcharge

Package

SOP-8

Overdischarge Release

Overcurrent detection

detection Hysteresis Dead time

Delay

detection voltage

VSOP-8 voltage

Overcurrent Detec time shot-mode

MM1291AF

4.35V 200mV

4.25V 200mV

2.6V 2.4V

2.3V

2.9V

100mV

150mV

100mV

50mV

125mV

50mV

125mV

Ctd=

0.082µF

4.10V

4.35V

25mV

27mV

min. 5mS

typ. 10mS

max. 15mS

min. 5mS

typ. 10mS

max. 15mS

min. 0.5S

typ. 1S

4.225V 27mV

4.35V 200mV

4.25V 270mV

4.25V 200mV

4.30V 270mV

0.45V

0.9V

0.45V

2.3V

max. 1.5S

Note : Under open-load conditions, returns to normal mode from overcurrent mode.

(For MM1291A to G, J, M, 5MΩ or higher; for MM1291H, K, 50MΩ or higher)

12 3 4 5 6 7

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与MM1291AF相关器件

型号	品牌	获取价格	描述	数据表
MM1292	MITSUMI	获取价格	Protection of Lithium Ion Batteries (two cells in series)
MM1292C	MITSUMI	获取价格	Protection of Lithium Ion Batteries (two cells in series)
MM1292D	MITSUMI	获取价格	Protection of Lithium Ion Batteries (two cells in series)
MM1292H	MITSUMI	获取价格	Protection of Lithium Ion Batteries (two cells in series)
MM1292J	MITSUMI	获取价格	Protection of Lithium Ion Batteries (two cells in series)
MM1292K	MITSUMI	获取价格	Protection of Lithium Ion Batteries (two cells in series)
MM1292L	MITSUMI	获取价格	Protection of Lithium Ion Batteries (two cells in series)
MM1293	MITSUMI	获取价格	Protection of Lithium Ion Batteries (three cells in series)
MM1294	MITSUMI	获取价格	Protection of Lithium Ion Batteries (four cells in series)
MM12D12-1250	WALL	获取价格	Single and Dual Output