5364 Datasheet | Allegro MicroSystems

SMOKE DETECTOR WITH INTERCONNECT The A5364CA is a low-current, CMOS circuit providing all of the required Features for an ionization-type smoke detector. A networking capability allows as many as 125 units to be interconnected so that if any unit senses smoke, all units will sound an alarm. In addition, special Features are incorporated to facilitate alignment and test of the finished smoke detector. This device is designed to ply with Underwriters Laboratories Specification UL217. The internal oscillator and timing circuitry keeps standby power to a minimum by powering down the device for 1.66 seconds and sensing smoke for only 10 ms. Every 24 on/off cycles, a check is made for low battery condition. By substituting other types of sensors, or a switch for the ionization detector, this very-low power device can be used in numerous other battery-operated safety/security applications. The A5364CA is supplied in a low-cost, 16-pin dual in-line plastic package. It is rated for continuous operation over the temperature range of 0°C to +50°C. Similar devices. with an internal timer to allow for a period of reduced sensitivity (“hush”), are available as the A5368CA. Data Sheet 26110.7A NO CONNECT. I/O LOW-V SET NO CONNECT. LED + SUPPLY TIMING RES. FEEDBACK 1 2 3 4 5 6 7 8 NC LOGIC 16 15 14 GUARD 2 DETECT. IN GUARD 1 SENSITIVITY SET OSC. CAP. HORN 2 HORN 1 - SUPPLY OSC. & TIMING 13 12 V DD HORN DRIVER 11 10 V SS 9 Dwg. PC-004-1 Features...