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MICROCHIP RE46C180E16F

Smoke Detector Sensor, CMOS Programmable, Open Drain, DIP, 16 Pins, 6 V, 12 V

MICROCHIP RE46C180E16F
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Manufacturer:
MICROCHIP MICROCHIP
Manufacturer Part No:
RE46C180E16F
Newark Part No.:
58T9977
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Technical Datasheet:
RE46C180E16F   Datasheet
ECAD / MCAD
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Product Overview

The RE46C180E16F is a next generation Smoke Detector IC with low power, CMOS ionization. With minimal external components this circuit will provide all the required features for an ionization-type smoke detector. An on-chip oscillator strobes power to the smoke detection circuitry for 5ms every 10 seconds to keep the standby current to a minimum. A check for a Low Battery condition is performed every 80s and an ionization chamber test is performed once every 320s when in Standby. The temporal horn pattern complies with the National Fire Protection Association NFPA 72® National Fire Alarm and Signalling Code® for emergency evacuation signals. An interconnect pin allows multiple detectors to be connected, such that when one unit alarms, all units will sound. A charge dump feature quickly discharges the interconnect line when exiting a Local Alarm condition. The interconnect input is also digitally filtered.
  • Low quiescent current consumption
  • Programmable standby sensitivity
  • Programmable HUSH sensitivity
  • Programmable chamber voltage for Push-to-Test (PTT) and chamber test
  • Programmable ±150mV Low battery set point
  • Internal ionization chamber test
  • Internal low battery test
  • Internal power-ON reset and power-up low battery test
  • Alarm memory
  • Auto alarm locate
  • Horn synchronization
  • IO filter and charge dump
  • Smart interconnect
  • Interconnect up to 40 detectors
  • ±5% All internal oscillator
  • 9 Minute or 80 second timer for sensitivity control
  • Temporal or continuous horn pattern
  • Guard outputs for ion detector input
  • ±0.75pA Detect input current

Applications

Sensing & Instrumentation

Product Information

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:
-V

:
Open Drain

:
DIP

:
16Pins

:
6V

:
12V

:
-10°C

:
60°C

:
-

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Technical Documents (3)

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