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PDF AIC1803CCS Data sheet ( Hoja de datos )
| Número de pieza | AIC1803CCS | |
| Descripción | Three-Cell Lithium-Ion Battery Protection IC | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC1803
Three-Cell Lithium-Ion Battery Protection IC
n FEATURES
n DESCRIPTION
l Ultra-Low Quiescent Current at 13µA (VCELL=3.5V).
l Ultra-Low Power-Down Current at 1.3µA (VCELL=2.3V)
l Wide Supply Voltage Range: 2V to 18V.
l Precision Overcharge Protection Voltage:
4.35V± 30mV for the AIC1803A
4.30V± 30mV for the AIC1803B
4.25V± 30mV for the AIC1803C
4.20V± 30mV for the AIC1803D
l Externally Set Overcharge, Overdischarge and
Overcurrent Delay Time.
l Built-in Cell-balancing Bleeding Network under
Overcharge Condition.
l Three Detection Levels for Overcurrent Protection.
n APPLICATIONS
l Protection IC for Three-Cell Lithium-Ion Battery Pack.
The AIC1803 is designed to protect the lithium-
ion battery from damage or degrading the lifetime
due to overcharging, overdischarging and
overcurrent for three-cell lithium-ion battery
powered systems such as notebook PCs. It can
also provide the cell-balancing “bleeding” function
to automatically discharge the overcharged cell
until the overcharge condition is released.
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.
n TYPICAL APPLICATION CIRCUIT
R8
1K
1 OC
2
CS
3
OD
4
NC
VCC 16
15
VC1
14
UD1
13
VC2
CTD
82nF
5 TD
6 TI
UD2 12
11
VC3
CTI
2.2nF
CTC
82nF
7
TC
8
NC
UD3 10
9
GND
AIC1803
R4 1K
C4
0.1µF
C1 R1 2K
0.1µF
R2 2K
C2
0.1µF
R3 33K
C3
0.1µF
M1
M2
BAT1
Q1
FUSE
R5
1M
BATT+
BAT2
BAT3
R7
1M
R6
1M
BATT-
Protection Circuit for Three-Cell Lithium-Ion Battery Pack
DS-1803-01 July 14, 00
www.analog.com.tw
1
1 page  
AIC1803
n TYPICAL PERFORMANCE CHARACTERISTICS (CONTIONED)
Vcc Pin Input Current vs. Temperature
16
VCELL =3.5V
15
14
Vcc Pin Power-Down Current vs. Temperature
2.0
1.8
VCELL=2.3V
1.6
13 1.4
12 1.2
11 1.0
10
-20 -10
0
10 20 30 40 50 60 70
Temperature (°C)
0.8 -20 -10
0
10 20 30 40 50 60 70
Temperature (°C)
Overcharge Protection Voltage vs. Temperature
4.30
AIC1803C
4.28
4.26
4.24
4.22
4.20-20
0 20 40
Temperature (°C)
60 70
Overcurrent Protection Voltage vs. Temperature
152.0
151.5
151.0
V CELL=3.5V
150.5
150.0
149.5
149.0
148.5
148.0
-20
-10
0
10 20 30 40 50 60 70
Temperature(°C)
Overdischarge Protection Voltage vs. Temperature
2.42
2.41
2.40
2.39
2.38
2.37
2.36
-20 -10
0
10 20 30 40 50 60 70
Temperature (°C)
Overcharge/Overdischarge Delay Time vs. Temperature
26
24 CTC /CTD=1nF
22
20
18
16
14
-20
-10
0
10 20 30 40 50 60 70
Temperature(°C)
5
5 Page 
n TIMING DIAGRAM
l Overcharge and Overdischarge Protection (VCS=VCC)
V OCP
-VOCP VHYS
VCELL
V ODR
V ODP
TOC
V BAT1
<TOC
V BAT2
TOD
VOC
Hi-Z
0V
Hi-Z
VOD
V CC
0V
l Overcurrent Protection (VCELL=3.5V)
VCC
VCC- 0.15V
VCC - 0.3V
>256ms
VCS VCC - 1V
0V
TOI1
<TOI2
VOD
VCC
0V
<256ms
VOC
<256ms
TOI3
256ms
Hi-Z
AIC1803
V BAT3
<T OD
<TOI1
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AIC1803CCS.PDF ] | |
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