A5358

A5358 Photoelectric Smoke Detector with Interconnect and Timer Features and Benefits ▪ Low average standby current for long battery life ▪ Interconnect up to 50 detectors ▪ Piezoelectric horn driver ▪ Low battery detection (all internal) ▪ Chamber sensitivity test and alarm ▪ Power-on reset (POR) ▪ Internal timer and control for reduced sensitivity mode ▪ Built-in circuits to reduce false triggering ▪ 6 to 12 V operating range ▪ ESD protection circuitry on all pins Packages: 16-pin DIP (Package A) 16-pin SOICW (Package LW) Not to scale Description The A5358 is a low-current BiCMOS circuit providing all of the required features for a photoelectric type smoke detector. This device can be used with an infrared photoelectric chamber to sense scattered light from smoke particles. A networking capability allows as many as 50 units to be interconnected so that if any unit senses smoke all units will sound an alarm. Special features are incorporated in the design to fa...