PoE+ Circuit Delivers 13W to 70W for Powered Devices (PDs)

Reference Design using part MAX5941B by Analog Devices

Manufacturer

Analog Devices
  • Application Category
    Power Drivers
  • Product Type
    Ethernet Power Driver

Associated Documents

For End Products

  • Ethernet Switch
  • Industrial Ethernet
  • Power Over Ethernet

Description

  • Application note presents a simple, cost-effective, pre-IEEE 802.3at PoE+ Powered Decice (PD) solution that employs the MAX5941B. The preliminary requirements of PoE+ PDs are discussed, as is the advantage of extending the existing MAX5941B circuit to implement a PoE+ PD. Test results including inrush-current limit, efficiency, output ripple and dynamic response are presented for 3.3V, 30W PD

Key Features

  • Input Voltage
    3.3 V
  • Output Voltage
    -48 V

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