PMP22764 Reference Design

Texas Instruments

Isolated flyback converter (24-V to 56-V/1.25-A) reference design

Description

This reference design utilizes a diode rectified flyback converter for a 24-V input to isolated 56-V/1.25-A output. The LM51551 PWM controller provides the control for the flyback converter: including hiccup mode short circuit protection. This reference design is ideal for when any well-regulated 56-V output is required: such as the power source for Power over Ethernet (PoE) Power Source Equipment (PSE).

Features
  • Over 90% efficiency at full-load at 24-V inputHiccup-mode short circuit protectionLow 82-mV peak-to-peak ripple on 54-V output
Applications
  • Machine vision camera
Product Categories
  • Power management

End Equipment Reference Diagrams