S-8242B Datasheet, PDF (6/30 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK

BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8242B Series
Rev.1.4_00
„ Electrical Characteristics
Table 6
Item
Symbol
Condition
Min.
[DETECTION VOLTAGE]
Overcharge detection voltage n
VCUn
3.90 to 4.50 V, Adjustable
VCUn
–0.025
Overcharge release voltage n
VCLn
3.80 to 4.50 V, Adjustable
VCLn
–0.05
Overdischarge detection voltage n
VDLn
2.0 to 3.0 V, Adjustable
VDLn
–0.05
Overdischarge release voltage n
VDUn
2.0 to 3.40 V, Adjustable
VDUn
–0.10
Overcurrent detection voltage 1
VIOV1
0.05 to 0.30 V, Adjustable ^VIOV1
–0.015
Overcurrent detection voltage 2
Charger detection voltage
Temperature coefficient 1
Temperature coefficient 2
VIOV2

0.9
VCHA

–1.0
TCOE1
Ta=0 to 50°C^*1
–1.0
TCOE2
Ta=0 to 50°C^*2
–0.5
[DELAY TIME]
Overcharge detection delay time
tCU

0.92
Overdischarge detection delay time
tDL
Overcurrent detection delay time 1
tIOV1

115

7.2
Overcurrent detection delay time 2
tIOV2 FET gate capacitance =2000 pF 220
[0 V BATTERY CHARGE FUNCTION]
0 V charge starting charger voltage
V0CHA
0 V charge available
1.2
0 V battery charge inhibition battery voltage V0INH
0 V charge unavailable

[INTERNAL RESISTANCE]
Resistance between VM and VDD
RVMD
V1=V2=1.5 V, VVM=0 V
100
Resistance between VM and VSS
RVMS
V1=V2=3.5 V, VVM=1.0 V
5
[INPUT VOLTAGE]
Operating voltage between VDD and VSS VDSOP1 Internal circuit operating voltage 1.5
Operating voltage between VDD and VM
VDSOP2 Internal circuit operating voltage 1.5
[INPUT CURRENT]
Current consumption during operation IOPE
V1=V2=3.5 V, VVM=0 V

Current consumption at power down
IPDN
V1=V2=1.5 V, VVM=3.0 V

VC pin current
IVC
V1=V2=3.5 V, VVM=0 V
–0.3
[OUTPUT RESISTANCE]
CO pin H resistance
RCOH
VCO=VDD–0.5 V
2
CO pin L resistance
RCOL
VCO=VVM+0.5 V
2
DO pin H resistance
RDOH
VDO=VDD–0.5 V
2
DO pin L resistance
RDOL
VDO=VSS +0.5 V
2
*1. Voltage temperature coefficient 1: Overcharge detection voltage
*2. Voltage temperature coefficient 2: Overcurrent detection voltage 1
Typ.
VCUn
VCLn
VDLn
VDUn
VIOV1
1.2
–0.7
0
0
1.15
144
9
300


300
10


5

0
4
4
4
4
(Ta=25°C unless otherwise specified)
Max. Unit
Test
Test
condition circuit
VCUn
V
1
1
+0.025
VCLn
V
1
1
+0.05
VDLn
V
2
2
+0.05
VDUn
V
2
2
+0.10
VIOV1
V
3
2
+0.015
1.5
V
3
2
–0.4
V
4
2
1.0 mV/°C 

0.5 mV/°C 

1.38
s
9
2
173 ms
9
2
11
ms
10
2
380
µs
10
2

V
0.5
V
11
2
12
2
900 kΩ
6
3
20
kΩ
6
3
10
V
28
V




10
µA
5
3
0.1
µA
5
3
0.3
µA
5
3
8
kΩ
7
4
8
kΩ
7
4
8
kΩ
8
4
8
kΩ
8
4
6
Seiko Instruments Inc.