ELM337 - Light Switch
The ELM337 provides a convenient means to interface standard photocells or light dependent resistors (LDRs) to digital logic circuits.
It provides an input comparator with hysteresis, line frequency filtering, digital delays, and high current output drivers all within the one 8 pin package.
Three mo
ELM337 Features
* Low power CMOS design - typically 1mA at 5V
* Operates from 3V to 5.5V
* No external timing elements required
* Low parts count
* Digitally selected delays of up to 10 minutes
* Pulsed or continuous outputs
* Internal line frequency filtering
