TIDA-050045

Type 3 IEEE802.3bt-ready active clamp forward converter PoE powered device reference design

TIDA-050045

Design files

Overview

This TI reference design showcases a Type-3, Class 6, 51-W active clamp forward converter for powered devices (PD) through PoE. The TPS23730 PD controller provides detection and classification while also containing a PWM controller. This design takes in a 37-V to 57-V PoE input, and outputs a 5-V rail for applications such as IP network cameras and wireless access points. 

Features
  • IEEE802.3bt Type 3 compliant PoE PD
  • Integrated PWM controller for flyback or active clamp forward congifuration
  • Frequency dithering for EMI reduction
  • Soft-start control with advanced startup and hiccup mode overload protection
  • Automatic maintain power signature (MPS)
  • Soft-stop shutdown
Communications equipment
??image.gallery.download_en_US?? View video with transcript Video

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

PDF | HTML
TIDUEX8.PDF (7810 K)

Reference design overview and verified performance test data

TIDM699.PDF (443 K)

Detailed schematic diagram for design layout and components

TIDM700.PDF (144 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDM701.PDF (455 K)

Detailed overview of design layout for component placement

TIDM703.ZIP (5018 K)

Files used for 3D models or 2D drawings of IC components

TIDCFX4.ZIP (940 K)

Design file that contains information on physical board layer of design PCB

TIDM702.PDF (1681 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Powered devices

TPS23730IEEE 802.3bt type-3 class 1-6 PoE 2 PD with high efficiency DC-DC controller

Data sheet: PDF | HTML
MOSFETs

CSD18503Q5A40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 4.3 mOhm

Data sheet: PDF | HTML
MOSFETs

CSD19538Q2100-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 59 mOhm

Data sheet: PDF | HTML
Shunt voltage references

TLV4311.5% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide Type 3 IEEE802.3bt-ready Active Clamp Forward Converter PoE Powered Device Refe PDF | HTML Sep. 21, 2020

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos