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LS7217 - PHOTO CONTROLLED OUTDOOR LIGHTING

General Description

The 7217 is a programmable Timer IC designed to turn on a relay at night and turn off the relay at dawn or after a selectable number of hours.

Figure 2 shows a typical application schematic.

PIN DESCRIPTION: The following describes the operation of the inputs and outputs of the IC.

Key Features

  • Input interface to a LDR or a photo transistor.
  • Programmable Duration Selection.
  • Shunt regulator.
  • 50Hz / 60Hz time base selection.
  • Relay Driver output.
  • 6.0V ± 0.75V operating voltage range (VDD.
  • VSS).
  • LS7217 (DIP), LS7217-S (SOIC).
  • See Figure 1 PIN.

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Datasheet Details

Part number LS7217
Manufacturer LSI
File Size 237.55 KB
Description PHOTO CONTROLLED OUTDOOR LIGHTING
Datasheet download datasheet LS7217 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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LSI/CSI LS7217   LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (631)271-0400 FAX (631) 271-0405                            PHOTO CONTROLLED OUTDOOR LIGHTING WITH PROGRAMMABLE TIMER Sep 2014 FEATURES: • Input interface to a LDR or a photo transistor • Programmable Duration Selection • Shunt regulator • 50Hz / 60Hz time base selection • Relay Driver output • 6.0V ± 0.75V operating voltage range (VDD – VSS) • LS7217 (DIP), LS7217-S (SOIC) – See Figure 1 PIN ASSIGNMENT APPLICATIONS Lighting control for outdoor area lighting, street lighting, parking lot lighting, billboards lighting DESCRIPTION The 7217 is a programmable Timer IC designed to turn on a relay at night and turn off the relay at dawn or after a selectable number of hours.