S8239B datasheet(12/25 Pages) SII

Part #	S8239B

Description	OVERCURRENT MONITORING IC FOR MULTI-SERIAL-CELL PACK

PDF	25 Pages

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Manufacturer	SII [Seiko Instruments Inc]

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

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OVERCURRENT MONITORING IC FOR MULTI-SERIAL-CELL PACK

S-8239B Series

Rev.1.1_00

Seiko Instruments Inc.

5. Delay circuit

The detection delay times are determined by dividing a clock of approximately 3.5 kHz with the counter.

Remark The overcurrent 2 detection delay time (tDIOV2) starts when the overcurrent 1 detection voltage (VDIOV1) is

detected. When the overcurrent 2 detection voltage (VDIOV2) is detected over tDIOV2 after the detection of

VDIOV1, the S-8239B Series becomes the overcurrent status within tDIOV2 from the time of detecting VDIOV2.

DO pin

VINI pin

High-Z

Time

VDIOV1

VSS

VDIOV2

tDIOV2

Time

≤ tD ≤ tDIOV2

Figure 9

6. DP pin

The DP pin is a test pin for delay time measurement and it should be open in the actual application.

If a capacitor whose capacitance is 1000 pF or more or a resistor whose resistance is 1 M

Ω or less is connected to

this pin, error may occur in the delay times or in the detection voltages.

S8239B Datasheet(PDF) 12 Page - Seiko Instruments Inc