Connected LED Lighting With IEEE802.3bt Power Over Ethernet (PoE) Reference Design


Design files


This Power over Ethernet (PoE) reference design supplies power and data over a single Ethernet cable to a connected LED lighting ballast. This reference design uses TI's TPS2372-4 PoE powered device (PD) interface, LM3409 buck controller, LM5165 buck converter, TPS62740 buck converter, TM4C1292NCPDT microcontroller (MCU), TPD4E05U06-Q1 ESD protection device, and DP83822I Ethernet PHY to provide power to the LED light remotely controlling the brightness and dimming parameters of the LED light while connected to the network.

In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.

  • IEEE802.3bt Ready
  • PD 51W Class 6 Power Level
  • Minimal Standby Power Consumption of 181 mW
  • Automatic Maintain Power Signature
  • IP-Addressable Board for Network Connected
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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.

TIDUDG2.PDF (1448 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement

TIDRTA6.ZIP (2010 K)

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


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

TIDRTA5.PDF (1416 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Powered devices

TPS2372IEEE 802.3bt PoE high-power PD interface with automatic MPS & autoclass

Data sheet: PDF | HTML
Arm Cortex-M4 MCUs

TM4C1292NCPDT32-bit Arm Cortex-M4F based MCU with 120-MHz, 1-MB Flash, 256-kb RAM, USB, ENET MAC+MII

Data sheet: PDF
Buck converters (integrated switch)

LM51653V-65V, 150mA Synchronous Buck Converter With Ultra-Low IQ

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS627402.2V-5.5V input, ultra-low-power 300mA step-down buck DCDC converter with 360nA Iq

Data sheet: PDF | HTML
ESD protection diodes

TPD4E05U06-Q1Automotive Quad 0.5-pF, 5.5-V, ±12-kV ESD protection diode for USB & High Speed Interfaces

Data sheet: PDF | HTML
Ethernet PHYs

DP83822HExtended temperature, robust low-power 10/100-Mbps Ethernet PHY transceiver with 16-kV ESD

Data sheet: PDF | HTML
Ethernet PHYs

DP83822HFExtended temperature, robust 10/100-Mbps Ethernet PHY transceiver with fiber support & 16-kV ESD

Data sheet: PDF | HTML
Ethernet PHYs

DP83822ILow-power, robust 10/100-Mbps Ethernet PHY transceiver with 16-kV ESD

Data sheet: PDF | HTML
Ethernet PHYs

DP83822IFLow-power, robust 10/100-Mbps Ethernet PHY transceiver with fiber support & 16-kV ESD

Data sheet: PDF | HTML
Illumination LED drivers

LM3409HV75-V PFET buck controller for high power LED drivers

Data sheet: PDF | HTML

Start development


Technical documentation

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Type Title Date
* Design guide IEEE802.3bt Power Over Ethernet (PoE) Connected LED Lighting Reference Design Nov. 03, 2017

Related design resources

Hardware development

TPS2372-4EVM-006 TPS2372-4EVM evaluation module for IEEE802.3bt PoE PD applications

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