5350

    The A5350CA is a low-current, CMOS circuit providing all of the required features for an ionization-type smoke det-ector.  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 of A5350CA are incorporated to facilitate alignment and test of the finished smoke detector.  This A5350CA is designed to comply with Underwriters Laboratories Specification UL217.

    The internal oscillator and timing circuitry keeps standby power to a minimum by powering down the A5350CA 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 sub-stituting other types of sensors, or a switch for the ionization detector, this A5350CA very-low power device can be used  in nu-merous other battery-operated safety/security applications.

    The A5350CA 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.