LS7539 Datasheet PDF (TOUCH CONTROL STEP DIMMER LIGHT SWITCH WITH AUTOMATIC GAIN CONTROL (AGC))

LS7539 - TOUCH CONTROL STEP DIMMER LIGHT SWITCH WITH AUTOMATIC GAIN CONTROL (AGC)

Description

The LS7538 and LS7539 are CMOS integrated circuits which provide trigger pulses for triac phase control of incandescent lamps.

The circuits are designed to operate with a wide variety of lamp sizes ranging from small table lamps to large floor lamps.

Features

Touch Sensitivity guaranteed to 600pF Touch Plate Capacitance. Touch Operation independent of line plug polarity. Pin selection of three available Brightness Step Sequences. Minimal external components. AGC Loop stabilizes immediately after Power-Up. Brightness state is Off after AC power applied. Brightness state is unchanged if AC power interrupted for < 0.5 sec. Advanced CMOS design.

Datasheet Details

Part number	LS7539
Manufacturer	LSI Computer Systems
File Size	26.57 KB
Description	TOUCH CONTROL STEP DIMMER LIGHT SWITCH WITH AUTOMATIC GAIN CONTROL (AGC)
Datasheet	LS7539 Datasheet
Additional preview pages of the LS7539 datasheet.

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Full PDF Text Transcription

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LSI/CSI UL ® LS7538-LS7539 (631) 271-0400 FAX (631) 271-0405 LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 A3800 TOUCH CONTROL STEP DIMMER LIGHT SWITCH WITH AUTOMATIC GAIN CONTROL (AGC) December 2002 FEATURES: • • • • • • • • • • • Touch Sensitivity guaranteed to 600pF Touch Plate Capacitance. Touch Operation independent of line plug polarity. Pin selection of three available Brightness Step Sequences. Minimal external components. AGC Loop stabilizes immediately after Power-Up. Brightness state is Off after AC power applied. Brightness state is unchanged if AC power interrupted for < 0.5 sec. Advanced CMOS design for reliable operating characteristics and low power. 50/60 Hz Line Frequency. +6V to +9.5V Operation (VDD-VSS).

Published: Apr 25, 2005 |