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S-8253A Datasheet, PDF (7/32 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK | |||
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Rev.3.7_00
BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK
S-8253A/B Series
 Electrical Characteristics
1. Except Detection Delay Time
Table 6 (1/2)
Item
DETECTION VOLTAGE
Overcharge detection voltage n
Overcharge release voltage n
Overdischarge detection voltage n
Overdischarge release voltage n
Symbol
Conditions
VCUn 3.90 to 4.40 V, Adjustable
VCL â VCU
VCLn 3.80 to 4.40 V, Adjustable
VCL = VCU
VDLn 2.0 to 3.0 V, Adjustable
VDL â VDU
VDUn 2.0 to 3.40 V, Adjustable
VDL = VDU
Overcurrent detection voltage 1
VIOV1 0.05 to 0.30 V, Adjustable
Overcurrent detection voltage 2
VIOV2

Overcurrent detection voltage 3
VIOV3
Temperature coefficient 1 *1
Temperature coefficient 2 *2
0 V BATTERY CHARGE FUNCTION
TCOE1
TCOE2
0 V battery charge starting charger voltage V0CHA
0 V battery charge inhibition battery voltage V0INH
INTERNAL RESISTANCE
Resistance between VMP and VDD
RVMD
Resistance between VMP and VSS
RVMS

Ta = 0 to 50 °C
Ta = 0 to 50 °C
0 V battery charging available
0 V battery charging unavailable
V1 = V2 = V3*3 = 3.5 V, VVMP = VSS
V1 = V2 = V3*3 = 1.8 V, VVMP = VDD
(Ta = 25 °C unless otherwise specified)
Test Test
Min.
Typ.
Max.
Unit
condi-
tion
circuit
VCUn
â0.025
VCUn
VCUn
+0.025
V
1
1
VCLn
â0.05
VCLn
VCLn
+0.05
V
1
1
VCLn
â0.025
VCLn
VCLn
+0.025
V
1
1
VDLn
â0.080
VDLn
VDLn
+0.080
V
1
1
VDun
â0.10
VDun
VDun
+0.10
V
1
1
VDun
â0.08
VDun
VDun
+0.08
V
1
1
VDD
âVIOV1
â0.025
VDD
âVIOV1
VDD
âVIOV1
+0.025
V
2
1
VDD
â0.60
VDD
VDD
â0.50 â0.40
V
2
1
VDD
VDD
VDD
â1.5 â1.2 â0.9
V
2
1
â1.0
0
1.0 mV / °C 

â0.5
0
0.5 mV / °C 


0.8 1.5
V
12
5
0.4
0.7 1.1
V
12
5
70
95 120 kâ¦
6
2
450 900 1800 kâ¦
6
2
Seiko Instruments Inc.
7
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