S-8240A Series

www.sii-ic.com

BATTERY PROTECTION IC FOR 1-CELL PACK

© SII Semiconductor Corporation, 2015-2016

1

The S-8240A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries and includes high-accuracy

voltage detection circuits and delay circuits.

The S-8240A Series is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge,

overdischarge, and overcurrent.



Features

• High-accuracy voltage detection circuit

Overcharge detection voltage

3.5 V to 4.6 V (5 mV step)

Accuracy

±20 mV

Overcharge release voltage

3.1 V to 4.6 V

*1

Accuracy

±50 mV

Overdischarge detection voltage

2.0 V to 3.4 V (10 mV step)

Accuracy

±50 mV

Overdischarge release voltage

2.0 V to 3.4 V

*2

Accuracy

±100 mV

Discharge overcurrent detection voltage

0.015 V to 0.200 V (5 mV step)

Accuracy

±5 mV

Load short-circuiting detection voltage

0.065 V to 0.500 V (25 mV step)

*3

Accuracy

±40 mV

Charge overcurrent detection voltage

−0.200 V to −0.015 V (5 mV step)

Accuracy

±5 mV

• Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).

• 0 V battery charge function is selectable:

Available, unavailable

• Power-down function is selectable:

Available, unavailable

• Release condition of discharge overcurrent status is selectable:

Load disconnection, charger connection

• Release voltage of discharge overcurrent status is selectable:

• High-withstand voltage:

VM pin and CO pin: Absolute maximum rating 28 V

• Wide operation temperature range:

Ta =

−40°C to +85°C

• Low current consumption

During operation:

1.5

μA typ., 3.0 μA max. (Ta = +25°C)

During power-down:

50 nA max. (Ta =

+25°C)

During overdischarge:

500 nA max. (Ta =

+25°C)

• Lead-free (Sn 100%), halogen-free

*1. Overcharge release voltage = Overcharge detection voltage

− Overcharge hysteresis voltage

(Overcharge hysteresis voltage can be selected from a range of 0 V to 0.4 V in 50 mV step.)

*2. Overdischarge release voltage = Overdischarge detection voltage

+ Overdischarge hysteresis voltage

(Overdischarge hysteresis voltage can be selected from a range of 0 V to 0.7 V in 100 mV step.)

*3. Load short-circuiting detection voltage = Discharge overcurrent detection voltage

+ 0.025 × n



Applications

• Lithium-ion rechargeable battery pack

• Lithium polymer rechargeable battery pack



Packages

• SOT-23-6

• SNT-6A

• HSNT-6 (1212)