U217B - Zero-Voltage Switch

Description

The integrated circuit, U217B, is designed as a zerovoltage switch in bipolar technology.

It is used to control resistive loads at mains by a triac in zero-crossing mode.

Features

D Direct supply from the mains D Current consumption ≤ 0.5 mA D Very few external components D Full-wave drive.
no DC current component in the load circuit D Negative output current pulse typ. 100 mA.
short-circuit protected D Simple power control D Ramp generator D Reference voltage.

Atmel

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Datasheet Details

Part number	U217B
Manufacturer	ATMEL
File Size	80.47 KB
Description	Zero-Voltage Switch
Datasheet	U217B Datasheet
Additional preview pages of the U217B datasheet.

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Full PDF Text Transcription

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Zero-Voltage Switch with adjustable Ramp U217B Description The integrated circuit, U217B, is designed as a zerovoltage switch in bipolar technology. It is used to control resistive loads at mains by a triac in zero-crossing mode. A ramp generator allows power control function by period group control, whereas full-wave logic guarantees that full mains cycles are used for load switching. Features D Direct supply from the mains D Current consumption ≤ 0.5 mA D Very few external components D Full-wave drive – no DC current component in the load circuit D Negative output current pulse typ.

Published: Jun 22, 2018 |