CPC7512Z datasheet(8/18 Pages) IXYS

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INTEGRATED CIRCUITS DIVISION

CPC7512

www.ixysic.com

R01

1.10 Truth Table

The truth table and block diagram are shown for Switch 1. Operation is the same for both switches, S1 and S2. Refer

to accompanying block diagram.

LATCH1

S1IN1

S1IN0

TSD

SW1A

SW1B

SW1C

Switch State

Z 2

OFF

All-Off: All switches are open (Off) 1

OFF

BC: S1B connected to S1C

OFF

AB: S1A connected to S1B

OFF

C: S1C connected S1COM

Unchanged

Latest switch state persists

0 3

OFF

Thermal shutdown active,

all switches are open (Off)

0 4,5

OFF

All-Off: All switches are open (Off)

1 Default state following power up and after an under-voltage lock out event.

2 Z = High Impedance with a weak internal pull-up. Because TSD has an internal pull-up, it should be controlled with an open-collector or open-drain type device.

3 TSD outputs a logic low.

4 TSD driven to a logic low by an external device. External device output should be an open-collector or an open-drain type.

5 When TSD is released, the switches revert back to their previous state.

COM

LATCH

IN0

IN1

Switch 1

Control

Logic

TSD

SW1

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