BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK

S-8252 Series

Seiko Instruments Inc.

9

2. Ta =

−40°C to +85°C

*1

Table 10

(Ta =

−40°C to +85°C

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Test

Circuit

DETECTION VOLTAGE

Overcharge detection voltage n (n = 1, 2)

−

V

1

Overcharge release voltage n (n = 1, 2)

+ 0.040

V

1

+ 0.030

V

1

−

+ 0.060

V

2

Overdischarge release voltage n (n =1, 2)

V

2

V

2

Discharge overcurrent detection voltage

−

2

Load short-circuiting detection voltage

−

0.40

0.50

0.60

V

2

DETECTION VOLTAGE (WITH CHARGE OVERCURRENT DETECTION FUNCTION)

Charge overcurrent detection voltage

−

2

DETECTION VOLTAGE (WITHOUT CHARGE OVERCURRENT DETECTION FUNCTION)

Charger detection voltage

−

−1.2

−0.7

−0.2

V

2

0 V BATTERY CHARGE FUNCTION

0 V battery charge function

"available"

0.0

0.7

1.5

V

2

0 V battery charge function

"unavailable"

0.3

0.8

1.3

V

2

INTERNAL RESISTANCE

Resistance between VM pin and VDD pin

V1 = V2 = 1.8 V, V3 = 0 V

78

300

1310

k

Ω

3

Resistance between VM pin and VSS pin

V1 = V2 = 3.5 V, V3 = 1.0 V

7.2

20

44

k

Ω

3

INPUT VOLTAGE

Operation voltage between VDD pin and

VSS pin

−

1.5

−

10

V

−

INPUT CURRENT (WITH POWER-DOWN FUNCTION)

Current consumption during operation

V1 = V2 = 3.5 V, V3 = 0 V

−

4.5

8.5

μA2

Current consumption during power-down

V1 = V2 = 1.5 V, V3 = 3.0 V

−

−

0.15

μA

2

VC pin current

V1 = V2 = 3.5 V, V3 = 0 V

0.0

1.2

2.0

μA

2

INPUT CURRENT (WITHOUT POWER-DOWN FUNCTION)

Current consumption during operation

V1 = V2 = 3.5 V, V3 = 0 V

−

4.5

8.5

μA2

V1 = V2 = 1.5 V, V3 = 3.0 V

−

2.5

5.5

μA2

VC pin current

V1 = V2 = 3.5 V, V3 = 0 V

0.0

1.2

2.0

μA

2

OUTPUT RESISTANCE

CO pin resistance "H"

V1 = V2 = 3.5 V,

V3 = 0 V, V4 = 6.5 V

1.2

5

15

k

Ω

4

CO pin resistance "L"

V1 = V2 = 4.7 V,

V3 = 0 V, V4 = 0.5 V

1.2

5

15

k

Ω

4

DO pin resistance "H"

V1 = V2 = 3.5 V,

V3 = 0 V, V5 = 6.5 V

2.4

10

30

k

Ω

4

DO pin resistance "L"

V1 = V2 = 1.8 V,

V3 = 3.6 V, V5 = 0.5 V

2.4

10

30

k

Ω

4

DELAY TIME

Overcharge detection delay time

−

× 0.3

× 2.0

−

5

Overdischarge detection delay time

−

× 0.3

× 2.0

−

5

−

× 0.3

× 2.0

−

5

Load short-circuiting detection delay time

−

−

5

Charge overcurrent detection delay time

−

× 0.3

× 2.0

−

5

*1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed by

design, not tested in production.