TIDA-050023 Reference Design

Texas Instruments

Type-3 IEEE802.3bt-ready flyback converter PoE powered device reference design

Description

This design showcases a low cost: Type-3: Class 6: 51W flyback converter for powered devices through Power over Ethernet. The TPS2373-3 PD controller provides detection and classification while also powering up the LM51551-Q1 PWM controller through its advanced startup feature. This design takes in a 42V-57V PoE input and outputs a 12V rail for applications such as IP network cameras and wireless access points.In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.

Features
  • Supports power levels for IEEE802.3bt Type 3Isolated diode rectified flyback designBuilt in hiccup mode protection for superior thermal performance during faultsPD Advanced Startup for PWM controllerAutomatic Maintain Power Signature (MPS)Oring circuit for auxiliary power through AC/DC
Applications
  • Small cell base station
  • WLAN/Wi-Fi access point
  • Outdoor backhaul unit
  • Thermal imaging camera
  • IP network camera
Product Categories
  • Power management