The Microchip’s 3-V RE46C190 photo smoke-detector IC with horn driver and boost regulator is offered as the first smoke-detector IC to offer low-voltage operation with programmable calibration and operating modes enabling the desired operating modes to be selected and calibrated during manufacturing. This feature also reduces the number of external components required, as electronic programmability allows the integration of several formerly external components into the IC, which in turn reduces costs associated with manufacturing and inventory.
The part offers an operating current of 8 µA typical which enables up to 10 years of operation from a single Lithium battery. Two Alkaline batteries may also be used to power the IC. It is available in a 16-pin SOIC 150 mil, package.($0.94 ea/10,000-unit — available now.)
