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LS7540 - TOUCH CONTROL CONTINUOUS DIMMER

General Description

The LS7540 is a CMOS integrated circuit for controlling the brightness of incandescent lamps with momentary touch.

When its TOUCH input is connected to a lamp body, the entire lamp turns into a touch plate.

Key Features

  • Touch or pushbutton control of incandescent lamps.
  • Touch Sensitivity guaranteed to 600pF Touch Plate Capacitance.
  • Touch Operation independent of line plug polarity.
  • Minimal external components.
  • AGC Loop stabilizes immediately after Power-Up.
  • Brightness state is Off after AC power applied.
  • No change of Brightness state if AC power interrupted < 0.5 sec.
  • Advanced CMOS design for reliable operating characteristics and l.

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Datasheet Details

Part number LS7540
Manufacturer LSI
File Size 85.50 KB
Description TOUCH CONTROL CONTINUOUS DIMMER
Datasheet download datasheet LS7540 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.

View original datasheet text
www.DataSheet4U.com LSI/CSI UL ® LS7540 (631) 271-0400 FAX (631) 271-0405 LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 A3800 TOUCH CONTROL CONTINUOUS DIMMER with AUTOMATIC GAIN CONTROL (AGC) June 2006 FEATURES: • Touch or pushbutton control of incandescent lamps. • Touch Sensitivity guaranteed to 600pF Touch Plate Capacitance. • Touch Operation independent of line plug polarity. • Minimal external components. • AGC Loop stabilizes immediately after Power-Up. • Brightness state is Off after AC power applied. • No change of Brightness state if AC power interrupted < 0.5 sec • Advanced CMOS design for reliable operating characteristics and low power. • 50/60 Hz Line Frequency. • 5V Operation (VDD - VSS).