photoelectric smoke detector ic microchip re46c191s16tf with two aa battery operation and internal oscillator
Microchip RE46C191: CMOS Low-Voltage Photoelectric Smoke Detector ASIC
Product Overview
The Microchip RE46C191 is a low-power, low-voltage CMOS photoelectric smoke detector Integrated Circuit (IC) designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217. With minimal external components, this circuit provides essential features for a photoelectric smoke detector, including local alarm memory, interconnect capability for up to 40 detectors, and adjustable sensitivity controls. It operates on two AA batteries and features low quiescent current consumption, making it suitable for battery-operated smoke detection systems. The device incorporates a gain-selectable photo amplifier for use with an infrared emitter/detector pair and includes an internal oscillator to minimize standby current.
Product Attributes
- Brand: Microchip Technology Inc.
- Part Number: RE46C191
- Technology: CMOS
- Compliance: Underwriters Laboratory Specification UL217
Technical Specifications
| Feature | Specification |
|---|---|
| Battery Operation | Two AA Battery Operation |
| Quiescent Current | Low Quiescent Current Consumption |
| Interconnect Capacity | Up to 40 Detectors |
| Sensitivity Control | Nine-Minute Timer for Sensitivity Control |
| Horn Pattern | Temporal or Continuous Horn Pattern |
| Internal Features | Low Battery and Chamber Test, Internal Oscillator, Internal Infrared Emitter Diode (IRED) Driver |
| Adjustable Features | Adjustable IRED Drive Current, Adjustable Hush Sensitivity |
| Low Battery Set Point | Two Percent Low Battery Set Point |
| Compatibility | Pin-for-Pin Compatible with RE46C190 |
| Supply Voltage (VDD) | 2.0V to 5.0V |
| Boost Voltage (VBST) | 3.0V to 4.2V (Typical), 8.5V to 10.7V (Typical) |
| Operating Temperature Range | -10C to +60C |
| Storage Temperature Range | -55C to +125C |
| Package Types | SOIC (16-Lead), SSOP (20-Lead) |
| Standby Current (Typical) | 1 A |
| IRED Current Options | 50 mA, 100 mA, 150 mA, 200 mA |
| Integration Time Options | 100 s, 200 s, 300 s, 400 s |
| Low Battery Trip Point Options | 2.1V to 2.8V (in 100 mV increments) |
2410121849_MICROCHIP-RE46C191S16TF_C457345.pdf
Our mission is to offer "High Quality" & "Good Service" & "Fast Delivery" to help our clients to gain more profits.
