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參數(shù)資料
| 型號： | AIC1802BCS |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | CMOS Differential 4-Channel Analog Multiplexer/Demultiplexer with Logic-Level Conversion 16-PDIP -55 to 125 |
| 中文描述： | 雙鋰離子電池保護(hù)IC |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 132K |
| 代理商： | AIC1802BCS |
AIC1802
Two-Cell Lithium-Ion Battery Protection IC
DS-1802-03 July 13, 00
www.analog.com.tw
1
n
FEATURES
l
Ultra-Low Quiescent Current at 10
μ
A (V
CC
=7V,
V
C
=3.5V).
l
Ultra-Low Power-Down Current at 0.2
μ
A (V
CC
=3.8V, V
C
=1.9V).
l
Wide Supply Range: 2 to 18V.
l
Precision Overcharge Protection Voltage
4.35V
±
30mV for the AIC1802A
4.30V
±
30mV for the AIC1802B
4.25V
±
30mV for the AIC1802C
l
Built-in Delay Circuits for Overcharge, Over-
discharge and Overcurrent Protection.
l
Overcharge and Overdischarge Delay Time
can be Extended by External Capacitors.
l
Built-in Cell-balancing Bleeding Network under
Overcharge Condition.
n
APPLICATIONS
l
Protection IC for Two-Cell Lithium-Ion Battery
Pack.
n
TYPICAL APPLICATION CIRCUIT
n
DESCRIPTION
The AIC1802 battery protection IC is designed
to protect lithium-ion batteries from damage due
to
overcharging,
overdischarging,
overcurrent for two series cells in portable
phones and laptop computers. It can be a part of
the low-cost charge control system within a two-
cell lithium-ion battery pack.
and
Safe and full utilization charging is ensured by
the accurate
±
30mV overcharge detection.
Three
different
specification
overcharge protection voltage are provided for
various protection requirements. The very low
standby current drains little current from the
cells while in storage.
values
for
5
3
7
4
2
1
6
8
AIC1802
*C
TC
& C
TD
are optional for delay time adjustment.
**R1 & R2: Refer application informations.
C2
1
μ
F
*C
TC
CEM9926
*C
TD
VCC
TC
VC
TD
GND
OC
OD
CS
BATTERY 1
BATTERY 2
M1
CEM9926
C1
1
μ
F
R6
1K
M2
V
BAT
+
V
BAT
-
R4
1M
Q1
R5
1M
R3
1M
**R1
**R2
C3
0.01
μ
F
Protection Circuit for Two-Cell Lithium-Ion Battery Pack
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