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PMP20199 Reference Design

Texas Instruments

85-265VAC Input: 54V/30W Power Over Ethernet PSE Reference Design

Description

This reference design provides a universal AC input: 30W PSE solution for Power Over Ethernet.  The UCC28700 uses primary side regulation to create an isolated 54V rail at low cost.  The TPS23861 injects the 54V rail onto the ethernet cable.

Features
  • Single port PSE solution for power over ethernetOver 90% efficiency at full load: low standby powerPrimary side regulation reduces cost1oz: 2-layer board measuring 90mm x 50mm size
Applications
  • Optical network terminal unit (ONT)
  • Small business switch
  • Campus & branch switches
Product Categories
  • Power management

End Equipment Reference Diagrams

Application Area End Equipment
Optical network terminal unit (ONT) https://www.ti.com/solution/optical-network-terminal-unit-ont#referencedesigns
Small business switch https://www.ti.com/solution/small-business-switch#referencedesigns
Campus & branch switches https://www.ti.com/solution/campus-branch-switches#referencedesigns
Additional details