MAX5942B

Obsolete

IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller for Power Devices

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2
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Part Details

  • Powered Device Interface
    • Fully Integrated IEEE 802.3af-Compliant PD Interface
    • PD Detection and Programmable Classification Signatures
    • Less than 10µA Leakage Current Offset During Detection
    • Integrated MOSFET for Isolation and Inrush Current Limiting
    • Gate Output Allows External Control of the Internal Isolation FET
    • Programmable Inrush Current Control/ULVO
    • PGOOD/Active-Low PGOOD Outputs Enable PWM Controller
  • PWM Controller
    • Wide Input Range: 18V to 67V
    • Isolated (Without Optocoupler) or Nonisolated Power Supply
    • Current-Mode Control
    • Leading-Edge Blanking
    • Internally Trimmed 275kHz ±10% Oscillator
    • Soft-Start
MAX5942B
IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller for Power Devices
MAX5942A, MAX5942B: Typical Operating Circuit
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