DC1788B-B, Demo Board Using LT4275BIDD PoE+ PD Controller, IEEE 802.3at/IEEE 802.3af Compliant

Reference Design using part LT4275BIDD by Analog Devices

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Efficiency vs. Load Current (Sheet 1 of 3)
DC1788B Schematic (Sheet 2 of 3)
DC1788B Schematic (Sheet 3 of 3)
Image 1 / 3

Manufacturer

Analog Devices
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

Associated Documents

For End Products

  • PoE Power Supply

Description

  • DC1788B-B, Demonstration Circuit features the LT4275 a fourth generation powered device (PD) controller for Power over Ethernet (PoE) applications. The DC1788B is available in multi versions to meet the power level required by the PD application. The DC1788B-B features the LT4275B PD controller and is compliant with the IEEE 802.3at and IEEE 802.3af specifications. The LTPoE++ adds four power levels to the existing IEEE standard with 38.7W, 52.7W, 70W and 90W of delivered PD power at the RJ45 jack

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    42.5 to 57 V
  • Output Voltage
    48 V
  • Output Current
    0.6 A
  • Output Power
    25.5 W
  • Efficiency
    98.9 %
  • Topology
    PoE

Featured Parts (2)

Featured Parts
Part Number Manufacturer Type Description
LT4275BIDD#TRPBF Analog Devices Power Over Ethernet - PoE Controllers Power Over Ethernet PD Controller 23V 60V 25.5W 10-Pin DFN EP Buy
LT4275BIDD#PBF Analog Devices Power Over Ethernet - PoE Controllers Power Over Ethernet PD Controller 23V 60V 25.5W 10-Pin DFN EP Buy

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