S8235A datasheet(10/24 Pages) SII

Part #	S8235A

Description	FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)

PDF	24 Pages

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Manufacturer	SII [Seiko Instruments Inc]

Direct Link	http://www.sii.co.jp

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FOR AUTOMOTIVE BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)

S-8235A Series

Rev.1.5_00

Seiko Instruments Inc.



Operation

1. Normal status

If the voltage of all the batteries is lower than "overcharge detection voltage n (VCUn)

+ overcharge hysteresis voltage n

(VHCn)", CO pin output changes to "L". This is called normal status.

2. Overcharge status

When the voltage of one of the batteries exceeds VCUn during a charging operation at normal status, and the status is

retained for overcharge detection delay time (tCU) or longer, CO pin output changes to "H". This is called overcharge

status.

VCUn

Battery voltage

CO pin

VHCn

(n = 1 to 5)

tCU

tCU or shorter

tTR or

shorter

tTR or

longer

2.0 ms typ.

Figure 5 Overcharge Detection Operation

S8235A Datasheet(PDF) 10 Page - Seiko Instruments Inc