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AAT8660

AAT
Part Number AAT8660
Manufacturer AAT
Description ONE-CELL LI-ION BATTERY PROTECTION IC
Published Apr 30, 2007
Detailed Description Advanced Analog Technology, Inc. AAT8660 Series Details are subject to change without notice. ONE-CELL LI-ION BATTERY P...
Datasheet PDF File AAT8660 PDF File

AAT8660
AAT8660

Overview
Advanced Analog Technology, Inc.
AAT8660 Series Details are subject to change without notice.
ONE-CELL LI-ION BATTERY PROTECTION IC FEATURES z z z Ideal for One-Cell Rechargeable Li-Ion Battery Packs GENERAL DESCRIPTION z z z The AAT8660 series are designed to protect one-cell rechargeable Li-Ion battery pack against High Accuracy Voltage Detection over-charge, over-discharge, over-current and Low Current Consumption: short circuit.
They use CMOS process to provide 3µA Supply Current (Typical) high accuracy voltage detection and low current consumption.
0.
1µA Shutdown Current Each of the AAT8660 devices incorporates 3-Level Over Current Detection: voltage comparators, bandgap reference voltage Over-Current Level 1 /Over Current Level 2 / Short Circuit generator, signal delay circuit, short circuit detector, and digital control circuit.
Wide Operating Temperature Range: o o In the charge process, when the battery voltage is − 40 C to + 85 C www.
DataSheet4U.
com charged to a value greater than VC1 (Over-Charge Small SOT26 Package Threshold Voltage), the output of C out pin switches to the low level, i.
e.
, the VN pin level.
The output of C out pin will switch to high level PIN CONFIGURATION D out GND VN V DD NULL when the battery voltage falls lower than VC2 (Over-Charge Release Voltage), or when the charger is disconnected from the battery pack and the battery voltage level ranges between VC1 and VC2.
During the discharge process, when the battery voltage drops to a value lower than VD1 C out (Over-Discharge Threshold Voltage), the output of D out pin switches to low level immediately after the internal delay time elapses.
The output of D out pin will switch to high level when the battery voltage is at a level higher than VD 2 (Over-Discharge Release Voltage).
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0 Advanced Analog Technology, Inc.
AAT8660 Series Over current level 1 voltage ( VOC1 ) is used to monitor the amou...


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