BATTERY PROTECTION IC FOR 1-CELL PACK

S-8261 Series

Seiko Instruments Inc.

8



Electrical Characteristics

1. Except Detection Delay Time (25

°C)

Table 6

(Ta

= 25°C unless otherwise specified)

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Test

Condition

Test

Circuit

DETECTION VOLTAGE

Overcharge detection voltage

= 3.9 V to 4.5 V, 5 mV Step

⎯

−0.025

+0.025

V

1

1

Ta

= −5°C to 55°C

*1

−0.030

+0.030

V

1

1

Overcharge hysteresis voltage

= 0.1 V to 0.4 V, 50 mV Step

⎯

−0.025

+0.025

V

1

1

Overdischarge detection voltage

= 2.0 V to 3.0 V, 10 mV Step

⎯

−0.050

+0.050

V

2

2

Overdischarge hysteresis voltage

= 0.0 V to 0.7 V, 100 mV Step

⎯

−0.050

+0.050

V

2

2

Overcurrent 1 detection voltage

= 0.05 V to 0.3 V, 10 mV Step

⎯

−0.015

+0.015

V

3

2

Overcurrent 2 detection voltage

⎯

0.4

0.5

0.6

V

3

2

Load short-circuiting detection voltage

⎯

0.9

1.2

1.5

V

3

2

Charger detection voltage

⎯

−1.0

−0.7

−0.4

V

4

2

INPUT VOLTAGE, OPERATION VOLTAGE

Operation voltage between VDD and VSS

1.5

⎯

8

V

⎯

⎯

Operation voltage between VDD and VM

1.5

⎯

28

V

⎯

⎯

CURRENT CONSUMPTION (with power-down function)

Current consumption in normal operation

1.0

3.5

7.0

μA

5

2

Current consumption at power down

⎯

⎯

0.1

μA

5

2

CURRENT CONSUMPTION (without power-down function)

Current consumption in normal operation

1.0

3.5

7.0

μA

5

2

Overdischarge current consumption

1.0

3.0

5.5

μA

5

2

OUTPUT RESISTANCE

CO pin resistance “H”

2.5

5

10

k

Ω

7

4

CO pin resistance “L”

2.5

5

10

k

Ω

7

4

DO pin resistance “H”

2.5

5

10

k

Ω

8

4

DO pin resistance “L”

2.5

5

10

k

Ω

8

4

VM INTERNAL RESISTANCE

Internal resistance between VM and VDD

100

300

900

k

Ω

6

3

Internal resistance between VM and VSS

10

20

40

k

Ω

6

3

0 V BATTERY CHARGE FUNCTION

0 V battery charge starting charger voltage

0 V battery charge “available”

1.2

⎯

⎯

V

11

2

0 V battery charge inhibition battery voltage

0 V battery charge “unavailable”

⎯

⎯

0.5

V

12

2

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

guaranteed by design, not tested in production.