S-8254AANFT-TB-G Datasheet, PDF (7/29 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK

Rev.5.0_01
BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK
S-8254A Series
„ Electrical Characteristics
Item
[ DETECTION VOLTAGE ]
Overcharge detection voltage n
(n = 1, 2, 3, 4)
Overcharge release voltage n
(n = 1, 2, 3, 4)
Symbol
V_CUn
V_CLn
Overdischarge detection voltage n
(n = 1, 2, 3, 4)
V_DLn
Overdischarge release voltage n ^VDUn
(n = 1, 2, 3, 4)
Overcurrent detection voltage 1 V_IOV1
Overcurrent detection voltage 2 V_IOV2
Overcurrent detection voltage 3 V_IOV3
Temperature coefficient 1 ^*1
Temperature coefficient 2 ^*2
T_COE1
T_COE2
[ DELAY TIME ]
Overcharge detection delay time t_CU
Overdischarge detection
delay time
t_DL
Overcurrent detection
delay time 1
t_IOV1
Overcurrent detection
delay time 2
t_IOV2
Overcurrent detection
delay time 3
t_IOV3
[ 0 V BATTERY CHARGE FUNCTION ]
0 V battery charge
starting charger voltage
V_0CHA
0 V battery charge
inhibition battery voltage
V_0INH
[ INTERNAL RESISTANCE ]
Resistance between
VMP and VDD
R_VMD
Resistance between
VMP and VSS
R_VMS
Table 4 (1 / 2)
Conditions
3.9 V to 4.4 V, Adjustable
3.8 V to 4.4 V,
Adjustable
V_CL ≠ V_CU
V_CL = V_CU
2.0 V to 3.0 V, Adjustable
2.0 V to 3.4 V,
Adjustable
V_DL ≠ V_DU
V_DL = V_DU
0.05 V to 0.3 V, Adjustable
⎯
⎯
Ta = 0°C to 50°C ^*3
Ta = 0°C to 50°C ^*3
CCT pin capacitance = 0.1 μF
CDT pin capacitance = 0.1 μF
CDT pin capacitance = 0.1 μF
⎯
FET gate capacitance = 2000 pF
0 V battery charging available
0 V battery charging unavailable
⎯
⎯
(Ta = 25°C unless otherwise specified)
Min. Typ. Max.
Unit
Test
circuit
V_CUn
− 0.025
V_CUn
V_CUn
+ 0.025
V
2
V_CLn
− 0.05
V_CLn
V_CLn
+ 0.05
V
2
V_CLn
− 0.025
V_CLn
V_CLn
+ 0.025
V
2
V_DLn
− 0.08
V_DLn
V_DLn
+ 0.08
V
2
V_DUn
− 0.10
V_DUn
V_DUn
+ 0.10
V
2
V_DUn
− 0.08
V_DUn
V_DUn
+ 0.08
V
2
V_IOV1
− 0.025
V_IOV1
V_IOV1
+ 0.025
V
2
0.4 0.5 0.6
V
2
V_VC1
− 1.5
V_VC1
− 1.2
V_VC1
− 0.9
V
2
− 1.0 0
1.0 mV / °C 2
− 0.5 0
0.5 mV / °C 2
0.5 1.0 1.5
s
3
50 100 150
ms
3
5
10
15
ms
3
0.4
1
1.6
ms
3
100 300 600
μs
3
⎯
0.8
1.5
V
4
0.4 0.7 1.1
V
4
0.5
1
1.5
MΩ
5
450 900 1800
kΩ
5
Seiko Instruments Inc.
7