| Part Number | FOD2742B |
| Manufacturer | Fairchild Semiconductor |
| Title | OPTICALLY ISOLATED ERROR AMPLIFIER |
| Description | The FOD2742 Optically Isolated Amplifier consists of the popular KA431 precision programmable shunt reference and an optocoupler. The optocoupler i... |
| Features |
• Optocoupler, precision reference and error amplifier in single package • 2.5V reference • CTR 100% to 200% • 2,500V RMS isolation • UL approval E90700, Volume 2 • VDE approval 136616 • FOD2742A: tolerance 0.5% FOD2742B: tolerance 1% FOD2742C: tolerance 2% • BSI approval 8661, 8662 • CSA approval 11... |
| File Size | 567.59KB |
| Datasheet |
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FOD2742A : 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. FUNCTIONAL BLOCK DIAGRAM FOD2742B FOD2742C When using the FOD2742, power supply designers can reduce the c.
FOD2742C : 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. FUNCTIONAL BLOCK DIAGRAM FOD2742B FOD2742C When using the FOD2742, power supply designers can reduce the c.