onsemi FOD2743B

Optocoupler DC-IN 1-CH Transistor DC-OUT 8-Pin PDIP W Bulk

DIP-8 Through Hole 1 Channel 70 V 5000 Vrms Optically Isolated Error Amplifier

Transistor Output Optocoupler, 1-Element, 5000V Isolation

NPN-Output dc-Input Optocoupler,1-CHANNEL,5kV ISOLATION,DIP

ISOLATED ERROR AMPLIFIER; Channels, No. of:1; Voltage, isolation:5000V ac; Output type:Transistor; Current, input:20mA; Voltage, output max:70V; Case style:8 Pin DIL; Temperature, operating range:-40°C to +85°C; Approval Bodies:BSI, CSA, VDE; Approval category:UL Recognised; Bandwidth:50kHz; CMR:1.0kV/µs; Current, Ic max:50mA; Depth, external:6.6mm; Length / Height, external:4.31mm; Optocoupler type:Error Amplifier; Pins, No. of:8; Power dissipation:145mW; Ratio, CTR max:100%; Ratio, CTR min:50%; Temp, op. max:85°C; Temp, op. min:-40°C; Tolerance:1%; Voltage, Vceo:70V; Voltage, Vf max:1.2V; Voltage, Vf typ:1.07V; Voltage, input max:37V; Voltage, reference:2.5V; Width, external:9.65mm

The FOD2743 Optically Isolated Amplifier consists of the popular KA431 percision 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 50% to 100%. 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 FOD2743, power supply designers can reduce the component count and save space in tightly packaged designs. The tight tolerance eliminates the need for adjustments in many applications. The device comes in an 8-pin dip white package.