RE46C190
RE46C190 is a PHOTO SMOKE IC with TEN YEAR BATTERY LIFE
制造商:Microchip
产品信息
The RE46C190 is not recommended for new designs.
Please contact Marketing for information on the RE46C191
The RE46C190 is a low voltage, low current programmable photoelectric smoke detector IC. This circuit will provide all the required features for a photoelectric smoke detector with minimal external components. Programmable setup, calibration and feature selection are the key to reduced component count and reduced manufacturing costs. The boost regulator insures proper operation of the infrared diode and the piezo horn under low battery conditions. The RE46C190 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.
Two AA battery Operation
Low Quiescent Current Consumption
Internal IRED driver with Programmable IRED Current
Programmable Photo Amplifier
Programmable Smoke Sensitivity Levels
9 Minute Timer for Reduced Sensitivity Operation
Chamber Test with Programmable Sensitivity Level
Internal Low Battery Test with Programmable Threshold
Interconnect up to 40 Detectors
Local Alarm Memory
Temporal or Continuous Horn Pattern
All internal Oscillator
Internal Power On Reset
Available 16L N SOIC