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S-8254ABBFT-TB-G Datasheet(PDF) 7 Page - Seiko Instruments Inc

Part # S-8254ABBFT-TB-G
Description  BATTERY PROTECTION IC
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Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

S-8254ABBFT-TB-G Datasheet(HTML) 7 Page - Seiko Instruments Inc

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BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK
Rev.5.2_00
S-8254A Series
7
Electrical Characteristics
Table 4 (1 / 2)
(Ta
= 25°C unless otherwise specified)
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test
circuit
[ DETECTION VOLTAGE ]
Overcharge detection voltage n
(n
= 1, 2, 3, 4)
VCUn
3.9 V to 4.4 V, Adjustable
VCUn
− 0.025
VCUn
VCUn
+ 0.025
V
2
Overcharge release voltage n
(n
= 1, 2, 3, 4)
VCLn
3.8 V to 4.4 V,
Adjustable
VCL
≠ VCU
VCLn
− 0.05
VCLn
VCLn
+ 0.05
V
2
VCL
= VCU
VCLn
− 0.025
VCLn
VCLn
+ 0.025
V
2
Overdischarge detection voltage n
(n
= 1, 2, 3, 4)
VDLn
2.0 V to 3.0 V, Adjustable
VDLn
− 0.08
VDLn
VDLn
+ 0.08
V
2
Overdischarge release voltage n
(n
= 1, 2, 3, 4)
VDUn
2.0 V to 3.4 V,
Adjustable
VDL
≠ VDU
VDUn
− 0.10
VDUn
VDUn
+ 0.10
V
2
VDL
= VDU
VDUn
− 0.08
VDUn
VDUn
+ 0.08
V
2
Overcurrent detection voltage 1
VIOV1
0.05 V to 0.3 V, Adjustable
VIOV1
− 0.025
VIOV1
VIOV1
+ 0.025
V
2
Overcurrent detection voltage 2
VIOV2
0.4
0.5
0.6
V
2
Overcurrent detection voltage 3
VIOV3
VVC1
− 1.5
VVC1
− 1.2
VVC1
− 0.9
V
2
Temperature coefficient 1
*1
TCOE1
Ta
= 0°C to 50°C
*3
− 1.0
0
1.0
mV / °C
2
Temperature coefficient 2
*2
TCOE2
Ta
= 0°C to 50°C
*3
− 0.5
0
0.5
mV / °C
2
[ DELAY TIME ]
Overcharge detection delay time
tCU
CCT pin capacitance
= 0.1 μF
0.5
1.0
1.5
s
3
Overdischarge detection
delay time
tDL
CDT pin capacitance
= 0.1 μF
50
100
150
ms
3
Overcurrent detection
delay time 1
tIOV1
CDT pin capacitance
= 0.1 μF
5
10
15
ms
3
Overcurrent detection
delay time 2
tIOV2
0.4
1
1.6
ms
3
Overcurrent detection
delay time 3
tIOV3
FET gate capacitance
= 2000 pF
100
300
600
μs
3
[ 0 V BATTERY CHARGE FUNCTION ]
0 V battery charge
starting charger voltage
V0CHA
0 V battery charging available
0.8
1.5
V
4
0 V battery charge
inhibition battery voltage
V0INH
0 V battery charging unavailable
0.4
0.7
1.1
V
4
[ INTERNAL RESISTANCE ]
Resistance between
VMP and VDD
RVMD
0.5
1
1.5
M
Ω
5
Resistance between
VMP and VSS
RVMS
450
900
1800
k
Ω
5


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