Features: Interconnect Up to 125 DetectorsPiezoelectric Horn DriverGuard Outputs for Detector InputPulse Testing for Low BatteryPower-ON ResetInternal Timer & Control for Reduced SensitivityBuilt-In Hysteresis Reduces False TriggeringPinoutSpecificationsSupply Voltage Range,VDD ..................
5347: Features: Interconnect Up to 125 DetectorsPiezoelectric Horn DriverGuard Outputs for Detector InputPulse Testing for Low BatteryPower-ON ResetInternal Timer & Control for Reduced SensitivityBuil...
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The A5347CA is a low-current, CMOS circuit providing all of the required features for an ionization-type smoke deector. 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 A5347CA are incorporated to facilitate alignment and test of the finished smoke detector. This A5347CA 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 A5347CA 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 A5347CA very-low power device can be used in numerous other battery-operated safety/security applications.
The A5347CA is supplied in a low-cost, 16-pin dual in-line plastic package. It is rated for continuous operation over he temperature range of 0°C to +50°C.