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Analog Devices / Maxim Integrated MAX5980EVKIT Evaluation Kit

Analog Devices MAX5980EVKIT Evaluation Kit is a fully assembled and tested surface-mount circuit board featuring the MAX5980. The Analog Devices MAX5980 is an Ethernet 4-port power-sourcing equipment (PSE) circuit for -48V or -54V supply rail systems. The IEEE® 802.3af/at-compliant MAX5980 PSE controller, in a 32-pin TQFN-EP package, and four n-channel power MOSFETs are used to form the main PSE circuit on the evaluation kit. The IC is used in Power-over-Ethernet (PoE) applications requiring DC power over four Ethernet network ports.

The evaluation kit provides optical isolation for the I2C-compatible 3-wire interface. The isolated interface can connect to a PC's USB port through an onboard USB interface circuit. The evaluation kit can easily be reconfigured for interfacing with a user's stand-alone microcontroller for isolated or nonisolated operation. In stand-alone operation, the user must supply a separate 3.3V power supply (concerning VEE) capable of supplying 100mA for the evaluation kit's +3.3V optically isolated 3-wire interface.

Features

  • IEEE 802.3af/at-Compliant PSE Circuit
  • High-Power Mode (Programmable Up to 30W per Port or Up to 60W in a 2 x 2 Pair Configuration)
  • Port Current Readout Through the I2C Interface
  • Input Voltages
    • -32V to -60V Providing 4A (-48V/-54V Power Circuit, 1A/Port)
  • Ethernet Network Ports
    • Four RJ45 10/100/1000BASE-TX Ethernet Network Input Ports
    • Four RJ45 10/100/1000BASE-TX Ethernet Network Output PoE Ports
  • Demonstrates PD Detection and Classification
  • Demonstrates Four Separate Independent Power Switch Controllers
  • DC Load Removal Detection and Disconnect Monitoring
  • Convenient Voltage and Current Test Points
  • Four Output-Port LED Status Indicators
  • Optically Isolated I2C-Compatible 3-Wire PC Interface
  • Reconfigurable for Stand-Alone Operation or with an External Microcontroller (Requires a +3.3V, 100mA Supply)
  • Windows XP-, Windows Vista-, and Windows 7-Compatible Software
  • Proven PCB Layout
  • Fully Assembled and Tested

Kit Contents

  • -32V to -60V, 4A-capable DC power supply
  • User-supplied Windows XP, Windows Vista, or Windows 7 PC with a spare USB port
  • USB I/O extension cable, straight-through, and male-to-female cable
  • Voltmeter for confirming output voltages

Board Layout

Mechanical Drawing - Analog Devices / Maxim Integrated MAX5980EVKIT Evaluation Kit
發佈日期: 2016-08-31 | 更新日期: 2023-04-12