S-8233BRFT-TB-G Ver la hoja de datos (PDF) - Seiko Instruments Inc

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componentes Descripción

Fabricante

S-8233BRFT-TB-G

BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

Seiko Instruments Inc 

BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

S-8233B Series

„ Block Diagram

Rev.4.2_00

VCC

CD1

Reference

voltage 1

+

−

Battery 1

Over charge

+

−

Battery 1

Over discharge

Over current

2,3 delay circuit

Over current

detection

VMP

c ircuit

Over current1,

delay circuit

COVT

VC1

Battery 1

Over discharge

delay circuit

CDT

Over charge

+

Control

Logic

−

Battery 2

Over charge

CD2

+

Over charge

delay circuit

CCT

−

Battery 2

Over discharge

Reference

voltage 2

VC2

Battery 2

Over charge

DOP

+

−

Battery 3

Over charge

CD3

+

COP

−

Battery 3

Over discharge

Reference

voltage 3

VSS

Battery 3

Over charge

Floating

CTL

detection circuit

Figure 1

Remark The delay time for over current detection 2 and 3 is fixed by an internal IC circuit. The delay

time cannot be changed via an external capacitor.

2

Seiko Instruments Inc.

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