A5303 Datasheet (Allegro) - Photoelectric Smoke Detector

A5303, Photoelectric Smoke Detector

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

A5303 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 rese