Datasheet > AAT8641A

AAT8641A

更新时间： 2024-01-04 11:20:38

品牌	Logo	应用领域
AAT		电池
页数	文件大小	规格书
25页	626K
描述
ONE-CELL LI-ION BATTERY PROTECTION IC

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AAT8641A 数据手册

Advanced Analog Technology, Inc.

AAT8641 Series

Product information presented is current as of publication date. Details are subject to change without notice

ONE-CELL LI-ION BATTERY PROTECTION IC

FEATURES

GENERAL DESCRIPTION

z Ideal for One-Cell Rechargeable Li-Ion

The AAT8641 series are designed for the

protection of one-cell rechargeable Li-Ion battery

pack against over charge, over discharge, over

current and short circuit. They use CMOS

process to provide high accuracy voltage

detection while consuming relatively low amount

of current.

Battery Packs

z High Accuracy Voltage Detection

z Low Current Consumption:

3μA Supply Current (Typical)

0.1μA Shutdown Current

z 3-Level Over Current Detection:

Over-Current Level 1 /Over Current Level 2

/ Short Circuit

Each of the AAT8641 devices incorporates

voltage comparators, bandgap reference voltage

generator, signal delay circuit, short circuit

detector, and digital control circuit.

z Wide Operating Temperature Range:

− 40 C to +85 ^oC

z Small SOT25 Package

During the charge process, when the battery

voltage is charged to a value higher than V_C1

(Over Charge Threshold Voltage), the output of

C_outpin switches to low level, i.e., the VN pin

PIN CONFIGURATION

level. The output of C_outpin will switch to high

level when the battery voltage is at a level lower

than V_C2(Over Charge Release Voltage), or

TOP VIEW

when the charger is disconnected from the battery

pack and the battery voltage level is in between

V_C1and V_C2.

C_OUT

During the discharge process, when the battery

voltage drops to a value lower than V_D1(Over

Discharge Threshold Voltage), the output of

D_outpin switches to low level immediately after

GND

D_OUT

the internal delay time elapses. The output of

D_outpin will switch to high level when the

battery voltage is at a level higher than V_D2

– 台灣類比科技股份有限公司 –

– Advanced Analog Technology, Inc. –

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