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A5364CA Datasheet(PDF) 1 Page - Allegro MicroSystems |
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A5364CA Datasheet(HTML) 1 Page - Allegro MicroSystems |
1 / 9 page A5364 NC I/O LOW-V SET NC LED VDD TIMING RES FEEDBACK GUARD2 DETECT IN GUARD1 SENSITIVITY SET OSC CAP HORN2 HORN1 VSS To / from other units 9 10 11 12 13 14 15 16 200 kΩ 200 k Ω 200 Ω 8.2 MΩ 1 μF 0.1 μF 1.5 MΩ 220 kΩ Push to Test 0.001 μF 330 Ω 9 V A B C C C A B Use an external resistor to adjust sensitivity for a particular smoke chamber. C A resistor to VSS or VDD may be added to this pin to modify low battery voltage threshold. Value of component will vary, based on the piezoelectric horn used. 1 2 3 4 5 6 7 8 Description The A5364 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 their alarm. In addition, special features are incorporated to facilitate alignment and test of the finished smoke detector. The device is Recognized by Underwriters Laboratories for use in smoke alarms that comply with Standard UL217. The internal oscillator and timing circuitry keep standby power to a minimum by powering down the device for 1.66 seconds and sensing for smoke for only 10 ms. Every 24 on-off cycles, a check is made for a 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 A5364 is supplied in a low-cost 16-pin dual in-line plastic package (DIP). It is rated for continuous operation over the temperature range of 0°C to 50°C. The Pb (lead) free version (suffix –T) has 100% matte tin leadframe plating. 26110.7E Features and Benefits ▪ Low average standby current for long battery life ▪ Interconnect up to 125 detectors ▪ Piezoelectric horn driver ▪ Guard outputs for detector input ▪ Pulse testing for low battery ▪ Power-on reset (POR) ▪ Internal reverse battery protection ▪ Built-in hysteresis reduces false triggering ▪ Temporal horn pattern, per UL217, NFPA72, and ISO8201 ▪ UL Recognized for UL217 applications, per file # S2113 Ionization Smoke Detector with Interconnect Typical Application Not to scale A5364 Package: 16-pin DIP (suffix A) |
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