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參數(shù)資料
| 型號： | AAT8661I |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | ONE-CELL LI-ION BATTERY PROTECTION IC |
| 中文描述： | 單節(jié)鋰離子電池保護(hù)IC |
| 文件頁數(shù)： | 1/25頁 |
| 文件大小： | 568K |
| 代理商： | AAT8661I |
Advanced Analog Technology, Inc.
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臺灣類比科技股份有限公司
–
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Advanced Analog Technology, Inc
.
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Page 1 of 25
V2.0
AAT8661 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
Battery Packs
z
High Accuracy Voltage Detection
z
Low Current Consumption:
3
μ
Supply Current (Typical)
A
A
1
μ
Shutdown Current
z
3-Level Over Current Detection:
Over-Current Level 1 /Over Current Level 2
/ Short Circuit
z
Wide
Operating
C
85
to
C
40
Temperature
Range:
ο
ο
z
Small SOT26 Package
PIN CONFIGURATION
NULL
out
D
VN
out
C
GND
DD
V
The AAT8661 series are designed to protect
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 and low current
consumption.
Each of the AAT8661 devices incorporates
voltage comparators, bandgap reference voltage
generator, signal delay circuit, short circuit
detector, and digital control circuit.
In the charge process, when the battery voltage is
charged to a value greater than
Threshold Voltage), the output of
V (Over-Charge
C
out
pin
switches to the low level, i.e., the
VN
pin level.
The output of
out
C
pin will switch to high level
when the battery voltage falls lower than V
C2
(Over-Charge Release Voltage), or when the
charger is disconnected from the battery pack and
the battery voltage level ranges between V
C1
and
V
C2
.
During the discharge process, when the battery
voltage drops to a value lower than
1
D
V
(Over-Discharge Threshold Voltage), the output
of
out
D
pin switches to low level immediately
after the internal delay time elapses. The output
of
out
D
pin will switch to high level when the
battery voltage is at a level higher than
2
D
V
(Over-Discharge Release Voltage).
Over current level 1 voltage (
1
OC
V
) is used to
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