DESCRIPTION

The HCPL-3700 voltage/current threshold detection optocoupler consists of an AlGaAs LED connected to a threshold sensing input buffer IC which are optically coupled to a high gain darlington output. The input buffer chip is capable of controlling threshold levels over a wide range of input voltages with a single resistor. The output is TTL and CMOS compatible.

FEATURES

• AC or DC input

• Programmable sense voltage

• Logic level compatibility

• Threshold guaranteed over temperature (0°C to 70°C)

• Optoplanar™ construction for high common mode immunity

• UL recognized (file # E90700)

APPLICATIONS

• Low voltage detection

• 5 V to 240 V AC/DC voltage sensing

• Relay contact monitor

• Current sensing

• Microprocessor Interface

• Industrial controls