UA742 - ZERO-CROSSING AC TRIGGER-TRIGAC

Fairchild (now onsemi)

General Description

- The p.A742 is a monolithic Zero-Crossing AC Trigger (TRIGAC) utilizing the Fairchild Planar

Epitaxial Process.

It is intended for use in ae power control circuits for operation directly off the ac line or with a separate ac or de power supply.

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UA742 zero-crossing ac trigger-trigac by Fairchild (now onsemi) - Datasheet Preview

Datasheet Details

Part number	UA742
Manufacturer	Fairchild (now onsemi)
File Size	275.37 KB
Description	ZERO-CROSSING AC TRIGGER-TRIGAC
Datasheet	UA742 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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p.A742 ZERO-CROSSING AC TRIGGER-TRIGAC FAIRCHILD LINEAR INTEGRATED CIRCUITS GENERAL DESCRIPTION - The p.A742 is a monolithic Zero-Crossing AC Trigger (TRIGAC) utilizing the Fairchild Planar* Epitaxial Process. It is intended for use in ae power control circuits for operation directly off the ac line or with a separate ac or de power supply. The TRIGAC functions as a threshold detector and a driver for triacs and SCA's. As a threshold detector, it senses level changes at the inputs and as a driver it supplies high energy pulses for thyristor triggering.