BATTERY PROTECTION IC FOR SINGLE-CELL PACK

S-8261 Series

Seiko Instruments Inc.

9

Electrical Characteristics

1. Except Detection Delay Time (25

°C)

Table 5

(Ta

= 25 °C unless otherwise specified)

Parameter

Symbol

Test

condition

Remark

Min.

Typ.

Max.

Unit

Test

circuit

[DETECTION VOLTAGE]

Overcharge detection voltage

= 3.9 V to 4.4 V, 5 mV Step

1



−0.025

+0.025

V

1

Ta

= −5 °C to 55 °C

*1

−0.030

+0.030

Overcharge hysteresis voltage

= 0.0 V to 0.4 V, 50 mV Step

1



−0.025

+0.025

V

1

Overdischarge detection voltage

= 2.0 V to 3.0 V, 10 mV Step

2



−0.050

+0.050

V

2

Overdischarge hysteresis voltage

= 0.0 V to 0.7 V, 100 mV Step

2



−0.050

+0.050

V

2

Overcurrent 1 detection voltage

= 0.05 V to 0.3 V, 10 mV Step

3



−0.015

+0.015

V

2

Overcurrent 2 detection voltage

3



0.4

0.5

0.6

V

2

Load short-circuiting detection

voltage

3



0.9

1.2

1.5

V

2

Charger detection voltage

4



−1.0

−0.7

−0.4

V

2

[INPUT VOLTAGE, OPERATION VOLTAGE]

Operation voltage between VDD

and VSS



Internal circuit operating voltage

1.5



8

V



Operation voltage between VDD

and VM



Internal circuit operating voltage

1.5



28

V



[CURRENT CONSUMPTION]

Current consumption in normal

operation

5

1.0

3.5

7.0

µA

2

Current consumption at power

down

5





0.1

µA

2

[OUTPUT RESISTANCE]

CO pin resistance “H”

7

2.5

5

10

k

Ω

4

CO pin resistance “L”

7

2.5

5

10

k

Ω

4

DO pin resistance “H”

8

2.5

5

10

k

Ω

4

DO pin resistance “L”

8

2.5

5

10

k

Ω

4

[VM INTERNAL RESISTANCE]

Internal resistance between VM

and VDD

6

100

300

900

k

Ω

3

Internal resistance between VM

and VSS

6

10

20

40

k

Ω

3

[0 V BATTERY CHARGING FUNCTION]

0 V battery charge starting charger

voltage

11

0 V battery charging available

1.2





V

2

0 V battery charge inhibition battery

voltage

12

0 V battery charging unavailable





0.5

V

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.