TIDA-00290

PoE PSE Type 2 (30W) IEEE 802.3at Fully Autonomous Quad Port Solution.

TIDA-00290

Design files

Overview

This reference design is fully autonomous IEEE802.3at, Type-2 (30 W) Power-over-Ethernet (PoE) 4-port power sourcing equipment (PSE). An additional configuration of two non-standard, high-power ports (<60 W) is provided. Both configurations support gigabit Ethernet data pass through in 1000BASE-T ports.

This reference design is made up of two boards:

  • Motherboard (TPS23861EVM-612)
  • Daughter board (TPS23861EVM-613)

The daughter board features two TPS23861 IEEE 802.3at PoE PSE controller devices. The motherboard provides a multi-port base platform interface for the daughter board. Additionally, the motherboard provides interfaces for two optional boards: MSP-EXP430G2 LaunchPad™ (if custom power management programmability is desired) and USB-to-GPIO interface adapter (if PC GUI-based power management configuration is desired).

This reference design has undergone exhaustive PoE testing and passes all industry-recognized conformance/interoperability test suites allowing customers to copy/paste the design without concern. The 2-layer PCB, daughter card, design delivers all of this on a low-cost platform.

Features
  • TPS23861 PSE devices default to full autonomous mode so no digital interface is required
  • Passes UNH-IOL PoE conformance/interoperability and SIFOs Type 1/Type 2 test suites
  • Four IEEE802.3at, Type 2 (30 W) ports and two non-standard, high power (<60 W) ports supported
  • Entire design is powered by a single DC supply. Logic power is delivered by an on board 3.3-V regulator (LM5007)
  • I2C interface allows programming via PC-based-GUI, or microcontroller-based code
  • Port ON status LEDs provides simple status indication in fully autonomous mode
Output voltage options TIDA-00290.1
Vin (Min) (V) 44
Vin (Max) (V) 57
Vout (Nom) (V) 48
Iout (Max) (A) .6
Output Power (W) 28.8
Isolated/Non-Isolated Isolated
Input Type DC
Topology POE

Design files & products

Design files

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

TIDC530.ZIP (2482 K)

Detailed schematic diagram for design layout and components

TIDC531.ZIP (1078 K)

Detailed schematic diagram for design layout and components

TIDR923.PDF (274 K)

Detailed schematic diagram for design layout and components

TIDR924.PDF (171 K)

Detailed schematic diagram for design layout and components

TIDR925.PDF (97 K)

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

TIDR926.PDF (94 K)

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

TIDR927.PDF (328 K)

Detailed overview of design layout for component placement

TIDR928.PDF (274 K)

Detailed overview of design layout for component placement

TIDC528.ZIP (318 K)

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

TIDC529.ZIP (204 K)

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

TIDR929.PDF (2179 K)

PCB layer plot file used for generating PCB design layout

TIDR930.PDF (1190 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

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TPS238612-pair, type-2, 4-channel Power-over-Ethernet (PoE) PSE with autonomous mode

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Start development

Hardware

Evaluation board

TPS23861EVM-612 – TPS23861EVM: Evaluation Module for the TPS23861 QUAD IEEE 802.3at POWER-OVER-ETHERNET PSE CONTROLLER

This easy-to-use design can be easily multiplied to 8-, 12-, 16-port and so on, while offering the industry’s best interoperability as well as a double sided PCB design.

Applications include Ethernet switch, surveillance Network Video Recorder (NVR), and small home/office routers.

The full PoE (...)

In stock
Limit: 5
Interface adapter

USB-TO-GPIO – USB Interface Adapter EVM

This EVM serves as an interface adapter or a bridge between a host PC (IBM™ compatible) and one or multiple slave devices via a standard type-A to mini-B USB cable. The communication between the USB interface adapter and the host PC is via USB, while the communication between the USB interface (...)

In stock
Limit: 3

Technical documentation

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View all 3
Type Title Date
Technical article May the forced UPOE be with you Jun. 15, 2015
Application note University of New Hampshire Interoperability Lab Interoperability Test, TPS23861 Jun. 11, 2014
Application note University of New Hampshire Interoperability Lab Conformance Test, TPS23861 Apr. 25, 2014

Related design resources

Hardware development

EVALUATION BOARD
MSP-EXP430G2 MSP430G2 LaunchPad Development kit

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