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FOD2742A - Optically Isolated Error Amplifier

General Description

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.

Key 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.
  • BSI approval 8661, 8662.
  • VDE approval 136616.
  • CSA approval 1113643.
  • Low temperature coefficient 50 ppm/°C max.
  • FOD2742A: tolerance 0.5% FOD2742B: tolerance 1% FOD2742C: tolerance 2%.

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Other Datasheets by Fairchild (now onsemi)

Part Number Description
FOD2742B Optically Isolated Error Amplifier
FOD2742C Optically Isolated Error Amplifier
FOD2741A Optically Isolated Error Amplifier
FOD2741B Optically Isolated Error Amplifier
FOD2741C Optically Isolated Error Amplifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FOD2742A, FOD2742B, FOD2742C — Optically Isolated Error Amplifier FOD2742A, FOD2742B, FOD2742C Optically Isolated Error Amplifier April 2009 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 ■ BSI approval 8661, 8662 ■ VDE approval 136616 ■ CSA approval 1113643 ■ Low temperature coefficient 50 ppm/°C max. ■ FOD2742A: tolerance 0.5% FOD2742B: tolerance 1% FOD2742C: tolerance 2% Applications ■ Power supplies regulation ■ DC to DC converters Description The FOD2742 Optically Isolated Amplifier consists of the popular KA431 precision programmable shunt reference and an optocoupler.