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A5303 Datasheet Photoelectric Smoke Detector

Manufacturer: Allegro MicroSystems

Overview: A5303 Photoelectric Smoke Detector with Interconnect, Timer, and Latching Alarm.

General Description

The A5303 is a low-current BiCMOS photoelectric smoke detector circuit with ultra-low standby current and can operate for 10 years powered by inexpensive batteries.

This device can be used with an infrared optical chamber to sense light scattered from smoke particles.

A networking capability allows units to be interconnected so that if any unit senses smoke all units will sound an alarm.

Key Features

  • Low average standby current allows 10-year battery life.
  • 2.3 to 5.5 V operating range.
  • Interconnect option.
  • Logic outputs to control an external sound IC.
  • Low battery detection and warning.
  • Chamber sensitivity test and warning.
  • Triple horn-chirp to distinguish chamber warning.
  • Power-on reset (POR).
  • Digital filter on I/O provides significant noise immunity.
  • Timer (hush) mode for enabling reduced sensitivity period.
  • Built-in circuits to reduc.

More Datasheets from Allegro MicroSystems

Part Number Description
A5348 Ionization Smoke Detector
A5350 Ionization Smoke Detector
A5358 Photoelectric Smoke Detector
A5364 Ionization Smoke Detector
A5366 Photoelectric Smoke Detector
A5367 Ionization Smoke Detector

A5303 Distributor