Reference Circuit 4940

High-Performance Class 2 Powered Device (PD) is Customizable for Class 3 Designs



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 REFERENCE SCHEMATIC 4940: High-Performance Class 2 Powered Device (PD) is Customizable for Class 3 Designs (PDF, 461kB)

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MAX5974A
Active-Clamped, Spread-Spectrum, Current-Mode PWM Controllers

  • Peak Current-Mode Control, Active-Clamped Forward PWM Controller
  • Regulation Without Optocoupler (MAX5974A/MAX5974B)
  • Internal 1% Error Amplifier

MAX5969B
IEEE 802.3af/at-Compliant, Powered Device Interface Controllers with Integrated Power MOSFET

  • IEEE 802.3af/at Compliant
  • 2-Event Classification
  • Simplified Wall Adapter Interface