EMC-compliant 10/100Mbps Ethernet PHY reference design with IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD
TIDA-010046
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

This reference design provides a cost-optimized solution for 10 to 100Mbps using the low-power Ethernet physical layer (PHY) DP83825 supporting 150m reach over CAT5e cable which is beyond the standard Ethernet distance limitation of 100 m (328 feet). Also, demonstrating power delivery over Ethernet cable along with data communication using IEEE802.3at Type-1 (13W) PoE-PD TPS23755 device with integrated primary side regulated Flyback DC/DC controller. This reference design is pre-compliance tested for radiated emissions, ESDs, and EFTs.

Features
  • Based on low cost, low power consumption and small form-factor 10/100Mbps Ethernet PHY DP83825 with RMII support and 150-m cable reach 
  • Efficient power delivery system via PoE using IEEE802.3at Type-1 PoE-PSE and PoE-PD 
  • Pre-compliance tested for radiated emission requirement: CISPR22/EN55022 - meets Class A and B limits; FCC Part 15 - meets Class A and B limits 
  • Pre-compliance tested for conducted immunity requirements: ±12-kV contact discharge and ±15-kV air discharge ESD IEC 61000-4-2 - meets criterion B; ±2-kV IO capacitive coupling EFT per IEC 61000-4-4 - meets criterion B 
  • External isolation transformer with common-mode choke on PHY side for improved EMI and EMC performance 
  • Programmable LED support for link and activity 

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

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

Download Design Files


TI Devices (13)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DP83822I  Low-power, robust 10/100-Mbps Ethernet PHY transceiver with 16-kV ESD  Ethernet  Sample & Buy View Design Kits & Evaluation Modules
DP83825I  Smallest form factor (3-mm by 3-mm), low-power 10/100-Mbps Ethernet PHY transceiver with 50-MHz c  Ethernet  Sample & Buy View Design Kits & Evaluation Modules
ESDS312  3.6V Data-Line Surge and 30kV ESD Protection Diode Array  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
LM3478  2.97~40V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
LM5160  LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
LP5907  250-mA ultra-low-noise low-IQ low-dropout (LDO) linear regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5529  25 MHz MCU with Integrated USB Phy, 128KB Flash, 8KB RAM, 12Bit/14 Channel ADC, 32BIT HW Multiplier  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TPD2E001  Low-Capacitance 2-Channel +/-15kV ESD Protection Array for High-Speed Data Interfaces  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS2121  2.7-22V, 56mΩ, 4.5A, Priority Power MUX with Seamless Switchover  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS23755  IEEE 802.3at PoE PD with no-opto flyback DC-DC controller  Power over Ethernet (PoE)  Sample & Buy View Design Kits & Evaluation Modules
TPS23861  Quad IEEE 802.3at Power over Ethernet PSE controller  Power over Ethernet (PoE)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A26  500-mA 18-V ultra-low-IQ low-dropout (LDO) linear voltage regulator with power good  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A4001  100V Input, 50mA, Single Output Low-Dropout Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DP83822I Download
ESDS312 Download Download
LM3478 Download Download
Download Download
LM5160 Download Download
Download -
LP5907 Download Download
Download -
Download Download
MSP430F5529 Download Download
TPD2E001 Download -
Download Download
Download -
Download Download
TPS2121 Download Download
TPS23755 VSON (RJJ)| 23 Download
TPS23861 Download Download
TPS7A26 Download Download
TPS7A4001 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 9137 11 Oct 2019
Design files (6)
Title Type Size (KB) Date
ZIP 1004 11 Oct 2019
ZIP 7249 11 Oct 2019
ZIP 2991 11 Oct 2019
ZIP 525 11 Oct 2019
ZIP 258 11 Oct 2019
ZIP 1037 11 Oct 2019

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective 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 visit our Support page.

Technical articles