BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

The S-8233C Series is a series of lithium-ion rechargeable battery protection ICs incorporating high-accuracy voltage detection circuits and delay circuits.

The S-8233C series includes the function to measure the status of battery pack.

It is suitable for a 3-serial-cell lithium-ion battery pack.

Features

(1) Internal high-accuracy voltage detection circuit

? Over charge detection voltage 3.80 ± 0.05 V to 4.40 ± 0.05 V

5 mV - step

? Over charge release voltage 3.45 ± 0.10 V to 4.40 ± 0.10 V

5 mV - step

(The over charge release voltage can be selected within the range where a difference from over

charge detection voltage is 0 to 0.35 V at 50 mV - Step)

? Over discharge detection voltage 2.00 ± 0.08 V to 2.80 ± 0.08 V

50 mV - step

? Over discharge release voltage 2.00 ± 0.10 V to 4.00 ± 0.10 V

50 mV - step

(The over discharge release voltage can be selected within the range where a difference from over

discharge detection voltage is 0 to 1.2 V at 50 mV - Step)

? Over current detection voltage 1 0.15 ± 0.015 V to 0.50 ± 0.05 V

50 mV - step

(2) High input-voltage device (absolute maximum rating: 26 V)

(3) Indicates Li-ion battery state.

(4) Wide operating voltage range: 2 V to 24 V

(5) The delay time for every detection can be set via an external capacitor.

(6) Three over current detection levels (protection for short-circuiting)

(7) Internal charge/discharge prohibition circuit via the control terminal

(8) The function for charging batteries from 0 V is available.

(9) Low current consumption

? Operation 50 μA max. (+25 °C)

? Power-down 0.1 μA max. (+25 °C)

(10) Lead-free products

Applications

Lithium-ion rechargeable battery packs