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参数资料
| 型号： | AIC1821CCV |
| 厂商： | Analog Integrations Corporation |
| 英文描述： | ONE-CELL LITHIUM-ION BATTERY PROTECTION IC |
| 中文描述： | 单节锂离子电池保护IC |
| 文件页数： | 1/7页 |
| 文件大小： | 207K |
| 代理商： | AIC1821CCV |
PRELIMINARY
AIC1821
ONE-CELL LITHIUM-ION BATTERY PROTECTION IC
SPEC NO: DS-1821-P1 06/07/00
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500
FAX:(8863)577-2510
1
n
FEATURES
l
Reduction in Board Size due to Miniature Package
SOT-25 and Less External Components.
l
Ultra-Low Quiescent Current at 7
μ
A (V
CC
=3.5V).
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Ultra-Low Power-Down Current at 0.4
μ
A (V
CC
=2.3V).
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Precision Overcharge Protection Voltage
4.35V
±
30mV for the AIC1821A
4.30V
±
30mV for the AIC1821B
4.25V
±
30mV for the AIC1821C
4.20V
±
30mV for the AIC1821D
l
Built-in Delay Time Circuits for Overcharge, Over-
discharge, and Overcurrent Protection.
l
Load Detection Function during Overcharge Mode.
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Two Detection Levels for Overcurrent Protection.
n
APPLICATIONS
l
Protection IC for One-Cell Lithium-Ion Battery
Pack.
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DESCRIPTION
The AIC1821 battery protection IC is designed to
protect
lithium-ion
battery
degrading
the
lifetime
overdischarge, and/or overcurrent for one-cell
lithium-ion battery powered systems, such as
cellular phones. The ultra-small package and less
required external components make it ideal to
integrate the AIC1821 into the limited space of
battery pack.
from
damage
overcharge,
or
due
to
The accurate
voltage ensures safe and full utilization charging.
Three different specification values for overcharge
protection
voltage
are
protection requirements. The very low standby
current drains little current from the cell while in
storage.
±
30mV
overcharging
detection
provided
for
various
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TYPICAL APPLICATION CIRCUIT
BATT-
BATT+
100K
5
4
3
2
1
R2
R3
10M
FUSE
C1
0.1
μ
F
R1
100
M2 SI9926
M1
SI9926
B
OC
CS
OD
GND
VCC
AIC1821
Protection Circuit for One-Cell Lithium-Ion Battery
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