onsemi FOD2742BR2

Transistor Output Optocouplers Error amplifier Optocoupler

FOD2742B Series 2500 Vrms 100 % CTR Optically Isolated Error Amplifier - SOIC-8

8-PIN SOIC Error Amplifier Optocoupler

OPTOCOUPLER, SO-8, ERROR AMP, SMD; No. of Channels:1; Isolation Voltage:2.5kV; Optocoupler Output Type:Phototransistor; Input Current:10mA; Output Voltage:70V; Opto Case Style:SOIC; No. of Pins:8; MSL:MSL 1 - Unlimited

The FOD2742 Optically Isolated Amplifier consists of the popular KA431 precision programmable shunt reference and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. It comes in 3 grades of reference voltage tolerance = 2%, 1%, and 0.5%. The Current Transfer Ratio (CTR) ranges from 100% to 200%. It also has an outstanding temperature coefficient of 50 ppm/°C. It is primarily intended for use as the error amplifier/reference voltage/optocoupler function in isolated ac to dc power supplies and dc/dc converters. When using the FOD2742, power supply designers can reduce the component count and save space in tightly packaged designs. The tight tolerance reference eliminates the need for adjustments in many applications. The device comes in a 8-pin small outline package.