S-8232NIFT-T2-G Ver la hoja de datos (PDF) - Seiko Instruments Inc

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S-8232NIFT-T2-G

BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK

Seiko Instruments Inc 

BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK

S-8232 Series

„ Block Diagram

Rev.5.4_00

VCC

SENS

Reference

voltage 1

−

+

Auxiliary

overcharge

detector 1

Overcharge

− detector 1

+ Over-

discharge

DO

Delay circuit

− detector 1

control signal

+

Control

logic

VC

VSS

Over-

discharge

+ detector 2

−

Overcharge

detector 2

+

−

Delay circuit control signal

Over current

detection circuit

Delay circuit

+

−

Auxiliary

Reference

voltage 2

overcharge

detector 2

Delay circuit

control signal

control signal

Delay circuit

DO, CO control signal

CO

RCOL

VM

ICT

Remark Resistor (RCOL) is connected to the Nch transistor although CO pin serves as a CMOS output.

For this, impedance becomes high when outputting “L” from CO pin. Refer to the “„ Electrical

Characteristics” for the impedance value.

Figure 1

2

Seiko Instruments Inc.

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