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參數(shù)資料
| 型號(hào)： | AIC1811 |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | One-Cell Lithium-Ion Battery Protection IC |
| 中文描述： | 單節(jié)鋰離子電池保護(hù)IC |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 118K |
| 代理商： | AIC1811 |
AIC1811
One-Cell Lithium-Ion Battery Protection IC
DS-1811-00 June 7, 00
www.analog.com.tw
1
n
FEATURES
l
Reduction in Board Size due to Miniature
Package
SOT-23-5
and
Less
External
Components.
l
Ultra-Low Quiescent Current at 7
μ
A (V
CC
=3.5V).
l
Ultra-Low Power-Down Current at 0.4
μ
A (V
CC
=2.3V).
l
Precision Overcharge Protection Voltage
4.35V
±
50mV for the AIC1811A
4.30V
±
50mV for the AIC1811B
4.25V
±
50mV for the AIC1811C
l
Built-in Delay Time Circuits for Overcharge,
Over-discharge, and Overcurrent Protection.
l
Load Detection Function during Overcharge
Mode.
l
Two Detection Levels for Overcurrent Protection.
n
APPLICATIONS
l
Protection IC for One-Cell Lithium-Ion Battery
Pack.
n
TYPICAL APPLICATION CIRCUIT
n
DESCRIPTION
The AIC1811 battery protection IC is designed to
protect lithium-ion battery from damage or
degrading the lifetime due to overcharge,
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 AIC1811 into the limited space of
battery pack.
The accurate
±
50mV overcharging detection
voltage ensures safe and full utilization charging.
Three different specification values for overcharge
protection voltage are provided for various
protection requirements. The very low standby
current drains little current from the cell while in
storage.
BATT-
BATT+
51K
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
AIC1811
Protection Circuit for One-Cell Lithium-Ion Battery
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