Microchip Technology Inc
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RE46C190

Status: In Production

Features:

  • Two AA battery Operation
  • Low Quiescent Current Consumption
  • Internal IRED driver with Programmable IRED Current
  • Programmable Photo Amplifier
  • Programmable Smoke Sensitivity Levels
  • 9 Minute Timer for Reduced Sensitivity Operation
  • Chamber Test with Programmable Sensitivity Level
  • Internal Low Battery Test with Programmable Threshold
  • Interconnect up to 40 Detectors
  • Local Alarm Memory
  • Temporal or Continuous Horn Pattern
  • All internal Oscillator
  • Internal Power On Reset
  • Available 16L N SOIC
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The RE46C190 is not recommended for new designs. 
Please use the RE46C191 for all new designs.

The RE46C190 is a low voltage, low current programmable photoelectric smoke detector IC. This circuit will provide all the required features for a photoelectric smoke detector with minimal external components. Programmable setup, calibration and feature selection are the key to reduced component count and reduced manufacturing costs. The boost regulator insures proper operation of the infrared diode and the piezo horn under low battery conditions. The RE46C190 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.

For product comparison, please consider: RE46C191

Additional Features
    • Two AA battery Operation
    • Low Quiescent Current Consumption
    • Internal IRED driver with Programmable IRED Current
    • Programmable Photo Amplifier
    • Programmable Smoke Sensitivity Levels
    • 9 Minute Timer for Reduced Sensitivity Operation
    • Chamber Test with Programmable Sensitivity Level
    • Internal Low Battery Test with Programmable Threshold
    • Interconnect up to 40 Detectors
    • Local Alarm Memory
    • Temporal or Continuous Horn Pattern
    • All internal Oscillator
    • Internal Power On Reset
    • Available 16L N SOIC
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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Data Sheets

10/12/2017
927KB

Device Documentation

Product Selection Tools

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
Shipping Weight
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
RE46C190S16F
0.157400
0.300000
16
SOIC
.150in
Matte Tin
e3
Rohs icon
efup china icon
RE46C190S16TF
0.157400
0.307692
16
SOIC
.150in
Matte Tin
e3
Rohs icon
efup china icon
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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