RE46C180

The RE46C180 is a next generation low power programmable CMOS ionization type smoke detector IC. 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 standby current to a minimum. A check for a low battery condition is performed every 80 seconds and ionization chamber test is performed once every 320 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 unit alarms all units will sound. A charge dump feature will quickly discharge the interconnect line when exiting a local alarm. The interconnect input is also digitally filtered. An internal 9 minute or 80s timer can be used for a reduced sensitivity mode. A local alarm memory feature allows the user to determine if the unit has previously entered a local alarm condition. Utilizing low power CMOS technology the RE46C180 is designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.

Features
  • 6 -12V Operation
  • Low Quiescent Current Consumption
  • +/- 0.75pA Detect Input Current
  • Guard Outputs for Ion Detector Input
  • Programmable Standby Sensitivity
  • Programmable Hush Sensitivity
  • Programmable Hysteresis
  • Programmable Chamber Voltage for Push-to-Test
  • Low Battery Set Point
  • Local Alarm Memory
  • Auto Alarm Locate
  • Horn Synchronization
  • 9 Minute or 80 Second Hush Timer
  • Temporal or Continuous Horn Pattern
  • Interconnect up to 40 Detectors
  • IO Filter and Charge Dump
  • 10-Year End-of-Life Indication
Parameter
Parameter Name Value Value
Type Ionization Ionization
Horn Driver Alarm Pattern NFPA Temporal or Continuous Tone NFPA Temporal or Continuous Tone
Low Battery Detect True True
Reverse Battery Protection False False
Alarm Interconnect True True
Sensitivty Timer True True
Powerup Low Battery True True
Alternate Diagnostics Mode True True
Chamber Test True True
Internal POR True True
Operating Temperature Range (C) -10C to 60C -10C to 60C
Documents
RE46C180 - CMOS Programmable Ionization Smoke Detector ASIC with Interconnect, TData Sheets09/14/2011851KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
RE46C180E16F16PDIP-10C to +60CCTUBE1.241.040.940.910.90
RE46C180S16F16SOIC-10C to +60CTUBE1.150.960.870.840.83
RE46C180S16TF16SOIC-10C to +60CT/R1.150.960.870.840.83
Similar Devices
ProductHorn Driver Alarm PatternPrice5K
RE46C120NFPA Temporal or Continuous Tone$0.54
RE46C121NFPA Temporal$0.54
RE46C122NFPA Temporal$0.57
RE46C126Continuous Tone$0.54
RE46C127Continuous Tone$0.57
RE46C129Continuous Tone$0.57
RE46C140NFPA Temporal$0.60
RE46C141NFPA Temporal$0.60
RE46C143Continuous Tone$0.60
RE46C144Continuous Tone$0.60
RE46C145NFPA Temporal$0.76
RE46C152NFPA Temporal or Continuous Tone$0.54
RE46C162NFPA Temporal or Continuous Tone$0.89
RE46C163NFPA Temporal or Continuous Tone$0.89
RE46C165NFPA Temporal$0.71
RE46C166Continuous Tone$0.71
RE46C167NFPA Temporal$0.71
RE46C168Continuous Tone$0.72
RE46C180NFPA Temporal or Continuous Tone$0.83
RE46C190NFPA Temporal or Continuous Tone$0.94
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
RE46C180E16F1.1127002.04166716PDIP.300inMatte Tine3
RE46C180S16TF0.1574000.30769216SOIC.150inMatte Tine3
RE46C180S16F0.1574000.30000016SOIC.150inMatte Tine3
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