RE46C129E16F by Microchip Technology

Ionization Smoke Detector ASIC

Status: Active
Series: RE46C129
RoHS: Compliant
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The RE46C129 is 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 10.5mS every 1.66 seconds to keep standby current to a minimum. A check for a low battery condition is performed every 40 seconds when in standby. An interconnect pin allows multiple detectors to be connected such that when one units alarms all units will sound. Although this device was designed for smoke detection utilizing an ionization chamber it could be used in a variety of security applications. The RE46C129 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.

Where to Buy

Prices starting from US$0.61

Distributor Stock
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Avnet America
from US$0.99
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in stock
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Farnell
from US$0.61
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Features

Guard Outputs for Ion Detector Input
+/-0.75pA Detect Input Current
Internal Reverse Battery Protection
Low Quiescent Current Consumption (<6.5uA)
Available in 16L PDIP or 16L N SOIC
ESD Protection on all Pins
Internal Low Battery Detection
Interconnect up to 40 Detectors
Compatible with Allegro A5350
Available in Standard Packaging or RoHS Compliant Pb Free Packaging.

Specifications

Type Ionization
Powerup Low Battery Test True
Internal POR False
Horn Driver Alarm Pattern Continuous Tone
Operating Voltage Min 6
Operating Voltage Max 12
Typical Iq (uA) 4
Operating Temp Min -10
Operating Temp Max 60
Chamber test False
Sensitivity Timer False
Alarm Interconnect True
Low Battery Detect True
Alarm Memory False

Last 6 months Inventory & Pricing History


Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 1.1127
Shipping Weight (kg) 1.88
Lead Count 16
Package Type PDIP
Package Width or Size .300in
Soldering Composition Matte Tin

Alternative Descriptions

IC, IONIZATION SMOKE DET 16PDIP | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a RE46C129E16F?

Additional datasheets, footprints and schematics for RE46C129E16F are listed on our Part Details page. You can also find images and similar parts to RE46C129E16F on this page.

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Is the RE46C129E16F RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for RE46C129E16F have stock available?

Authorised distributors including Avnet America and Farnell have stock available or on a lead time for RE46C129E16F.

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