OPTOELECTRONIC SWITCH - TWILIGHT SENSOR

Designed for use in twilight sensing applications and in emergency and outdoor lighting, the ULN3390T optoelectronic switch is a monolithic integrated circuit containing a photodiode, low-level amplifier, comparator, voltage regulator, and output driver. The comparator is fabricated to give the sensor a built-in typical hysteresis value of 50 percent.

FEATURES
◾ Photodiode with On-Chip
   Amplifier
   Comparator
   Output Driver
   Voltage Regulator
◾ 50% Hysteresis
◾ Temperature Compensation