S-8223A/B/C/D Series

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BATTERY PROTECTION IC FOR 2-SERIAL / 3-SERIAL CELL PACK

(SECONDARY PROTECTION)

© SII Semiconductor Corporation, 2017

1

The S-8223A/B/C/D Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates

high-accuracy voltage detection circuits and delay circuits.

Short-circuits between cells accommodate series connection of two cells or three cells.

The S-8223B/D Series limits its CO pin output voltage to 11.5 V max., so an FET with the gate withstand voltage of 12 V can be

used.



Features

• High-accuracy voltage detection circuit for each cell

Overcharge detection voltage n (n = 1 to 3)

3.600 V to 4.700 V (50 mV step)

Accuracy

±20 mV (Ta = +25°C)

Accuracy

±25 mV (Ta = −10°C to +60°C)

Overcharge hysteresis voltage n (n = 1 to 3)

*1

0.0 mV to

−550 mV (50 mV step)

−300 mV to −550 mV

Accuracy

±20%

−100 mV to −250 mV

Accuracy

±50 mV

−50 mV

Accuracy

±25 mV

0.0 mV

Accuracy

−25 mV to +20 mV

• Delay times for overcharge detection are generated only by an internal circuit (external capacitors are unnecessary)

Overcharge detection delay time is selectable:

1 s, 2 s, 4 s, 6 s, 8 s

Overcharge release delay time is selectable:

2 ms, 64 ms

• Built-in timer reset delay circuit

• Output form is selectable (S-8223A/C Series):

CMOS output, Nch open-drain output

• Output logic is selectable (S-8223A/C Series):

Active "H", active "L"

• CO pin output voltage is limited to 11.5 V max. (S-8223B/D Series)

*2

• High-withstand voltage:

Absolute maximum rating 28 V

• Wide operation voltage range:

3.6 V to 28 V

• Wide operation temperature range:

Ta =

−40°C to +85°C

• Low current consumption

− 1.0 V for each cell):

0.25

μA typ., 0.5

× 0.5 V for each cell):

0.3

μA max. (Ta = +25°C)

• Lead-free (Sn 100%), halogen-free

*1. Select the overcharge hysteresis voltage calculated as the following formula.

(Overcharge detection voltage n)

+ (Overcharge hysteresis voltage n) ≥ 3.4 V

*2. Only output logic active "H" is available.



Application

• Lithium-ion rechargeable battery packs (for secondary protection)



Package

• SNT-6A