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Details for RE46C165S16F by Microchip Technology
Electronic & Electrical Components > Sensors & Transducers > Sensors
PHOTOELECTRIC SMOKE DET IC 16SOIC
RE46C165S16F image

RE46C165S16F by Microchip Technology

PHOTOELECTRIC SMOKE DET IC 16SOIC
Features
1.2 minutes (RE46C167/8)
9 minutes (RE46C165/6)
>2000V ESD Protection (HBM) on All Pins
Alarm Memory
I/O Filter and Charge Dump
Interconnect up to 40 Detectors
Internal Low Battery Detection and Chamber
Internal Power-on Reset
Low Quiescent Current Consumption (<8 u00b5A)
Sensitivity Control Times:
Part Information
RE46C165S16F image
RoHS Compliant
Description
The RE46C165/6/7/8 devices are low-power, CMOS photoelectric type, smoke detector ICs. With minimal external components, these circuits 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. The temporal horn pattern supports the NFPA 72 emergency evacuation signal. 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 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 RE46C165/6/7/8 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268. CMOS Photoelectric Smoke Detector ASIC with Interconnect, Timer Mode and Alarm Memory
Specifications
Input Voltage:
12V
IC Output Type:
Open Drain
Sensor Case Style:
SOIC
No. of Pins:
16Pins
Supply Voltage Min:
6V
Supply Voltage Max:
12V
Operating Temperature Min:
-25°C
Operating Temperature Max:
75°C
Product Range:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (15-Jan-2018)
Brief Features:
Temporal Horn Pattern Alarm Memory 9 minute Control Timer I/O Filter and Charge Dump
IC Function:
Photoelectric Smoke Detector IC with Interconnect & Timer Mode & Alarm Memory
Operating Temperature Range:
-25°C to +75°C
Supply Current:
4µA
Supply Voltage Range:
6V to 12V
Alternate Descriptions
Photo Smoke Detector w/Alarm Memory Allied Electronics & Automation