General Description:

The RE46C145 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.

The design incorporates a gain-selectable photo amplifier for use with an infrared emitter/detector pair.

Features:

• Internal Power On Reset

• Low Quiescent Current Consumption

• ESD Protection on all Pins

• Interconnect up to 40 Detectors

• 10 Minute Timer for Sensitivity Control

• Temporal Horn Pattern

• Internal Low Battery and Chamber Test

• Compatible with Allegro A5366

• Alternate Diagnostic Mode

• UL Recognized per File S24036