RE46C166E16F IC Sensors by Microchip Technology

Photoelectric Smoke Detector ASIC

Semiconductors - ICs
> IC Sensors
> Smoke Detector
Status: Active
Series: RE46C166
RoHS: Compliant
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The RE46C166 device is a low-power, CMOS photoelectric type, smoke detector IC. With minimal external components, this circuit will provide all the required features for a photoelectric type smoke detector. Each design incorporates a gain selectable photo amplifier for use with an infrared emitter/detector pair. An internal oscillator strobes power to the smoke detection circuitry for 100 µs every 10 seconds to keep standby current to a minimum. If smoke is sensed, the detection rate is increased to verify an alarm condition. A high gain mode is available for push button chamber testing. A check for a low battery condition and chamber integrity is performed every 43 seconds when in standby. A continuous tone horn pattern is used for the alarm condition. 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. An internal 9 minute timer allows for 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 RE46C166 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.

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Prices starting from US$0.95

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Newark Electronics
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Avnet America
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TME
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Microchip Technology
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RS Americas
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element14
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Features

Continuous Tone Pattern
Alarm Memory
Sensitivity Control Times: 9 minutes
I/O Filter and Charge Dump
Interconnect up to 40 Detectors
Internal Power-on Reset
>2000V ESD Protection (HBM) on All Pins
Low Quiescent Current Consumption (<8 µA)
Internal Low Battery Detection and Chamber Test
RoHS Compliant Lead-Free Packaging

Specifications

Type Photoelectric
Powerup Low Battery Test False
Internal POR True
Horn Driver Alarm Pattern Continuous Tone
Operating Voltage Min 6
Operating Voltage Max 12
Typical Iq (uA) 4
Operating Temp Min -25
Operating Temp Max 75
Chamber test True
Sensitivity Timer True
Alarm Interconnect True
Low Battery Detect True
Alarm Memory False
Pins | Packaging 16 | PDIP
Temp Range -25C to +75C
Packing Media Tube (30)

Last 6 months Inventory & Pricing History

Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 1.1127
Shipping Weight (kg) 1.833333
Lead Count 16
Package Type PDIP
Package Width or Size .300in
Soldering Composition Matte Tin

Alternative Descriptions

Smoke Detector, 12V, 4 Ua, 16-Soic | Newark Electronics
CMOS Photoelectric Smoke Detector ASIC 16-Pin PDIP Tube | Avnet America
IC: smoke sensor | TME
Photo smoke with alarm memory | Microchip Technology
PHOTO S.D. IC W/ALARM MEM, TEMP., 16 PDIP .300IN TUBE | RS Americas
PHOTOELECTRIC SMOKE DET IC, 16PDIP | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a RE46C166E16F?

Additional datasheets, footprints and schematics for RE46C166E16F are listed on our Part Details page. You can also find images and similar parts to RE46C166E16F on this page.

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What category does RE46C166E16F fall under?

The RE46C166E16F is listed under Semiconductors - ICs > IC Sensors > Smoke Detector.

Can I view similar or alternative parts?

You can view similar parts to RE46C166E16F when available in the Smoke Detector range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the RE46C166E16F you can contact the distributor directly for product support, shipping queries etc.

Is the RE46C166E16F RoHS compliant?

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

Which authorised distributors for RE46C166E16F have stock available?

Authorised distributors including Newark Electronics, Avnet America, TME, Microchip Technology and RS Americas have stock available or on a lead time for RE46C166E16F.

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