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RE46C122

Status: In Production

Features:

  • >1500V ESD Protection (HBM) on all Pins
  • Guard Outputs for Ion Detector Input
  • +/-0.75pA Detect Input Current
  • Internal Reverse Battery Protection
  • Low Quiescent Current Consumption (<6.5uA)
  • Available in 16L PDIP or 16L N SOIC
  • Internal Low Battery Detection
  • Power Up Low Battery Test
  • Interconnect up to 40 Detectors
  • 10 Minute Timer for Sensitivity Control
  • Compatible with Allegro A5367
  • Available in Standard Packaging or RoHS Compliant Pb Free Packaging.
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The RE46C122 is low power CMOS ionization type smoke detector IC. With few external components this circuit will provide all the required features for an ionization type smoke detector. An internal oscillator strobes power to the smoke detection circuitry for 10.5mS every 1.66 seconds to keep standby current to a minimum. A check for a low battery condition is performed every 40 seconds when in standby. The temporal horn pattern supports the NFPA 72 emergency evacuation signal. An interconnect pin allows multiple detectors to be connected such that when one units alarms all units will sound. An internal 10 minute timer allows for a separate button to be used for reduced sensitivity mode. Although this device was designed for smoke detection utilizing an ionization chamber it could be used in a variety of security applications. The RE46C122 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.

Additional Features
  • >1500V ESD Protection (HBM) on all Pins
  • Guard Outputs for Ion Detector Input
  • +/-0.75pA Detect Input Current
  • Internal Reverse Battery Protection
  • Low Quiescent Current Consumption (<6.5uA)
  • Available in 16L PDIP or 16L N SOIC
  • Internal Low Battery Detection
  • Power Up Low Battery Test
  • Interconnect up to 40 Detectors
  • 10 Minute Timer for Sensitivity Control
  • Compatible with Allegro A5367
  • Available in Standard Packaging or RoHS Compliant Pb Free Packaging.
Parametrics
Name
Value
Type
Ionization
Horn Driver Alarm Pattern
NFPA Temporal
Low Battery Detect
True
Reverse Battery Protection
True
Alarm Interconnect
True
Sensitivty Timer
True
Powerup Low Battery
True
Operating Temperature Range (C)
-10C to 60C

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
RE46C122E16F
1.112700
1.880000
16
PDIP
.300in
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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