RE46C143 Datasheet, PDF (7/12 Pages) Microchip Technology – CMOS Photoelectric Smoke Detector ASIC with Interconnect

RE46C143
CMOS Photoelectric Smoke Detector ASIC with Interconnect
Product Specification
R&E International
A Subsidiary of Microchip Technology Inc.
Typical Application
Figure 2
Notes:
1. C3 should be located as close as possible to the device power pins.
2. C3 is typical for an alkaline battery. This capacitance should be increased to 4.7uF or greater for a carbon battery.
3. R10, R11 and C6 are typical values and may be adjusted to maximize sound pressure.
© 2009 Microchip Technology Inc.
DS22178A-page 7