Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

RE46C162

Status: In Production

Features:

  • Pin Selectable Horn Patterns
  • Alarm Memory
  • Sensitivity Control Timer: 8 minutes
  • >1500V ESD Protection (HBM) on All Pins
  • Guard Outputs for Ion Detector Input
  • ±0.75 pA Detect Input Current
  • Internal Reverse Battery Protection
  • Low Quiescent Current Consumption (<6.5 µA)
  • I/O Filter and Charge Dump
  • Internal Low Battery Detection
  • Power-up Low Battery Test
  • Interconnect up to 66 Detectors
  • RoHS Compliant, Lead Free Packaging
View More
Overview
Documents
Development Environment
Similar Devices
RoHS Information
Add To Cart

Device Overview

Summary

The RE46C162 device is a 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 10.5 ms every 1.67 seconds to keep standby current to a minimum. A check for a low battery condition is performed every 40 seconds when in standby. An external pin enables the selection of a continuous tone or NFPA temporal horn pattern. An interconnect pin allows multiple detectors to be connected so 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 8 minute timer allows for a single button, push-to-test to be used for a reduced sensitivity mode. An alarm memory feature allows the user to determine if the unit has previously entered a local alarm condition. Utilizing low-power CMOS technology, the RE46C162 device is designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.

Additional Features
  • Pin Selectable Horn Patterns
  • Alarm Memory
  • Sensitivity Control Timer: 8 minutes
  • >1500V ESD Protection (HBM) on All Pins
  • Guard Outputs for Ion Detector Input
  • ±0.75 pA Detect Input Current
  • Internal Reverse Battery Protection
  • Low Quiescent Current Consumption (<6.5 µA)
  • I/O Filter and Charge Dump
  • Internal Low Battery Detection
  • Power-up Low Battery Test
  • Interconnect up to 66 Detectors
  • RoHS Compliant, Lead Free Packaging
Parametrics
Name
Value
Type
Ionization
Horn Driver Alarm Pattern
NFPA Temporal or Continuous Tone
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

Jump to:

Data Sheets


Development tools data is currently unavailable.

Similar Devices

Product
Horn Driver Alarm Pattern
Price 5K
NFPA Temporal or Continuous Tone
$0.54
NFPA Temporal
$0.54
NFPA Temporal
$0.57
Continuous Tone
$0.54
Continuous Tone
$0.57
Continuous Tone
$0.57
NFPA Temporal
$0.60
NFPA Temporal
$0.60
Continuous Tone
$0.60
Continuous Tone
$0.60
NFPA Temporal
$0.76
NFPA Temporal or Continuous Tone
$0.54
NFPA Temporal or Continuous Tone
 
NFPA Temporal or Continuous Tone
 
NFPA Temporal
 
Continuous Tone
$0.71
NFPA Temporal
 
Continuous Tone
 
NFPA Temporal or Continuous Tone
$0.83
NFPA Temporal or Continuous Tone
$0.94
NFPA Temporal or Continuous Tone
$0.94
NFPA Temporal or Continuous Tone
$0.88
NFPA Temporal or Continuous Tone
$0.81

Rohs data is currently unavailable.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy