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RE46C194

Status: In Production

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Overview
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Development Environment
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RoHS Information
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Device Overview

Summary

The RE46C194 is a low power, low voltage CMOS photoelectric type smoke detector ASIC. With minimal external components, this circuit will provide all the required functions and features for a photoelectric smoke detector.  Programmable setup, calibration and feature selection are the key to reduced component count and reduced manufacturing costs.  The low average operating current of the RE46C194 allows smoke detectors to achieve 10-year operation with lithium ion batteries.  The boost regulator insures proper operation of the infrared diode and the piezoelectric horn under low battery conditions.  The design incorporates a programmable gain integrating photo amplifier for use with an infrared emitter diode.  The infrared emitter drive current is programmable along with smoke alarm limits which provides the designer with exceptional flexibility when designing a smoke detector.  Smart IO with CO temporal horn pattern allows the RE46C194 to be used in combined CO and photoelectric smoke detectors.

Additional Features
  • • 3V Lithium or two AA Battery Operation
  • • Low Quiescent Current Consumption
  • • Programmable IRED Drive Current
  • • Programmable Photo Amp Setup
  • • Programmable Alarm Limits
  • • Long Term Drift Adjustment
  • • Chamber Test
  • • 9 Minute Timer for Hush Operation
  • • Programmable Feature Selection
  • • Low Battery Test
  • • Temporal or Continuous Horn Pattern
  • • Horn Synchronization
  • • Auto Alarm Locate
  • • Local Alarm Memory
  • • Remote CO Alarm Response
  • • Compatible with the RE46C191
Parametrics
Name
Value
Type
Photoelectric
Horn Driver Alarm Pattern
NFPA Temporal or Continuous Tone
Low Battery Detect
True
Reverse Battery Protection
False
Alarm Interconnect
True
Sensitivty Timer
True
Powerup Low Battery
False
Alternate Diagnostics Mode
False
Chamber Test
True
Internal POR
True
Operating Temperature Range (C)
-10C to 60C

Documents

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Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
RE46C190 Demo Board
RE46C190 Demo Board ( ADM00344 )

The demo board is a complete stand-alone smoke detector application with a smoke chamber emulator. The demo board allows evaluation of all the functions of the RE46C190. Key test points of the device are available at the bottom edge of the demo board. It is designed for battery operation using a CR123A battery or can be operated using a power supply. The RE46C190 application circuit is on the...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
RE46C194S16T
0.157400
0.307692
16
SOIC
.150in
Matte Tin
e3
RE46C194S16
0.157400
0.300000
16
SOIC
.150in
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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