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參數(shù)資料
| 型號： | AIC1804CCS |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | Three- Or Four-Cell Lithium-Ion Battery Protection IC |
| 中文描述： | 三或四節(jié)鋰離子電池保護IC |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 170K |
| 代理商： | AIC1804CCS |
AIC1804
Three- Or Four-Cell Lithium-Ion Battery
Protection IC
DS-1804-01 July 13, 00
www.analog.com.tw
1
n
FEATURES
l
Cell Number Selection Function to Select 3 or 4
cells Protection.
l
Ultra-Low Quiescent Current at 17
μ
A (4-Cell,
V
CELL
=3.5V).
l
Ultra-Low Power-Down Current at 2.2
μ
A (4-Cell,
V
CELL
=2.3V)
l
Wide Supply Voltage Range: 2V to 18V.
l
Precision Overcharge Protection Voltage:
4.35V
±
30mV for the AIC1804A
4.30V
±
30mV for the AIC1804B
4.25V
±
30mV for the AIC1804C
4.20V
±
30mV for the AIC1804D
l
Externally Set Overcharge,
Overcurrent Delay Time.
Overdischarge and
l
Built-in Cell-balancing Bleeding Network under
Overcharge Condition.
l
Three Detection Levels for Overcurrent Protection.
n
APPLICATIONS
l
Protection IC for Three- or Four-Cell Lithium-Ion
Battery Packs.
n
TYPICAL APPLICATION CIRCUIT
n
DESCRIPTION
The AIC1804 is designed to protect the lithium-
ion battery from damage or degrading the lifetime
due
to
overcharging,
overcurrent for three- or four-cell lithium-ion
battery powered systems such as notebook PCs.
It can also provide the cell-balancing “bleeding”
function
to
automatically
overcharged cell until the overcharge condition is
released.
overdischarging
and
discharge
the
Safe and full utilization charging is ensured by
the accurate
±
30mV overcharge detection. Four
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.
0.1
μ
F
C4
0.1
μ
F
C2
0.1
μ
F
C3
0.1
μ
F
C1
R6
1M
1M
R5
R7
1M
BATT-
AIC1804
1
16
6
7
8
5
4
OC
CS
2
3
OD
TD
TI
TC
GND
9
10
13
12
15
14
UD4
R4
33K
R3
2K
UD3
11
VC3
BAT4
R2
2K
200
R1
UD2
VC2
BAT3
UD1
VC1
VCC
BAT1
BAT2
1K
R8
NSL
BATT+
FUSE
M2
M1
SI4435
SI4435
2
Q
C
TC
82nF
C
82nF
C
TI
2.2nF
Protection Circuit for Four-Cell Lithium-Ion Battery Pack
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