Microchip RE46C181E16

Manufacturer No:

RE46C181E16

Manufacturer:

Microchip

Package:

Description:

RE46C180 is a CMOS Programmable Ion Smoke Detector ASIC

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RE46C181E16 information

Microchip RE46C181E16 technical specifications, attributes, parameters and parts with similar specifications to Microchip RE46C181E16.

Type
Parameter

Type
Ionization

Typical Standby Iq (uA)
3.8

UL-217 Ed 9 & UL-268 Ed 7 Compatible
False

Operating Voltage Min
6

Operating Voltage Max
12

Operating Temp Min
-10

Operating Temp Max
60

CO Monitor
False

Download datasheets and manufacturer documentation for Microchip RE46C181E16.

The RE46C181 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 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. A Chamber Monitor function checks for ionization chamber degradation.

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

Programmable Low Battery Set Point

Local Alarm Memory

9 Minute Hush Timer

Temporal Horn Pattern

Interconnect up to 40 Detectors

IO Filter and Charge Dump

10-Year End-of-Life Indication

Chamber Monitor Warning

User Guide

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