S-8244 Datasheet, PDF (7/27 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)

BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
Rev.3.3_00
S-8244 Series
„ Electrical Characteristics
Table 6
(Ta = 25 °C unless otherwise specified)
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test
conditions
Test
circuit
DETECTION VOLTAGE
Overcharge detection voltage 1 ^*1
V_CU1
3.7 to 4.5 V Adjustment
V_CU1
−0.025
V_CU1
V_CU1
+0.025
V
1
1
Overcharge detection voltage 2 ^*1
V_CU2
3.7 to 4.5 V Adjustment
V_CU2
−0.025
V_CU2
V_CU2
+0.025
V
2
1
Overcharge detection voltage 3 ^*1
V_CU3
3.7 to 4.5 V Adjustment
V_CU3
−0.025
V_CU3
V_CU3
+0.025
V
3
1
Overcharge detection voltage 4 ^*1
V_CU4
3.7 to 4.5 V Adjustment
V_CU4
−0.025
V_CU4
V_CU4
+0.025
V
4
1
Overcharge hysteresis voltage 1 ^*2 V_CD1
Overcharge hysteresis voltage 2 ^*2 V_CD2
Overcharge hysteresis voltage 3 ^*2 V_CD3
Overcharge hysteresis voltage 4 ^*2 V_CD4

0.28 0.38 0.48 V
1
1

0.28 0.38 0.48 V
2
1

0.28 0.38 0.48 V
3
1

0.28 0.38 0.48 V
4
1
Detection voltage temperature
coefficient ^*3
T_COE
Ta=−40 to +85 °C
−0.4 0.0 +0.4 mV/°C 

DELAY TIME
Overcharge detection delay time t_CU
OPERATING VOLTAGE
C=0.1 µF
1.0
1.5 2.0
s
5
2
Operating voltage between VCC
and VSS ^*4
V_DSOP

3.6

24
V


CURRENT CONSUMPTION
Current consumption during normal
operation
I_OPE
V1=V2=V3=V4=3.5 V

1.5 3.0 µA
6
3
Current consumption at power down I_PDN V1=V2=V3=V4=2.3 V 
1.2 2.4 µA
6
3
VC1 sink current
I_VC1
V1=V2=V3=V4=3.5 V −0.3

0.3 µA
6
3
VC2 sink current
I_VC2
V1=V2=V3=V4=3.5 V −0.3

0.3 µA
6
3
VC3 sink current
OUTPUT VOLTAGE^*5
I_VC3
V1=V2=V3=V4=3.5 V −0.3

0.3 µA
6
3
CO “H” voltage
V_CO(H)
at I_OUT = 10 µA
V_CC
−0.05


V
7
4
CO “L” voltage
V_CO(L)
at I_OUT = 10 µA


V_SS
+0.05
V
7
4
*1. ±50 mV when Ta = −40 to +85 °C.
*2. 0.25±0.07 V, 0.13±0.04 V, 0.045±0.02 V except for 0.38 V hysteresis models.
*3. Overcharge detection voltage or overcharge hysteresis voltage.
*4. After detecting the overcharge, the delay circuit operates normally in the range of operating voltage.
*5. Output logic and CMOS or open drain output can be selected.
Seiko Instruments Inc.
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