24-port (PoE 2, 4-pair) power sourcing equipment reference design for multi-port applications
TIDA-050026-23881
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Description & Features

Technical documentation

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Important Note

TI’s FirmPSE System Firmware, GUI, Host Interface Protocol and FirmPSE advisory is available. Request now

TPS23881 product advisory and SRAM firmware update is available. Request now

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Key Document

Description

This reference design showcases a Type-4 (PoE 2, 4-Pair) 24-port Ethernet switch for Power over Ethernet (PoE) applications which can send up to 90W per port for for IEEE 802.3bt (PoE 2) applications and up to 120W per port for non-standard applications. Based on the MSP430F523x family, our FirmPSE system software for this design reduces time to market and frees-up valuable software resources by enabling real-time communication with the system and customization of firmware. This design supports power management with priority, multiple power supplies, legacy PD detection, field upgradability, UART/I2C communication with the host, and more. In addition, two of these designs may be cascaded through the edge connectors in order to support up to 48-port PSE systems.

List of Required Hardware

  • PSEMTHR24EVM-081: Mother board for 24-port IEEE 802.3bt (PoE 2) ready PSE system
  • TPS23881EVM-083: IEEE 802.3bt (PoE 2) ready PSE daughter card for 24-port PSE system
  • PSEMCUDAUEVM-082: MSP430 daughter card for 24-port IEEE 802.3bt (PoE 2) ready PSE system
  • MSP-FET: Flash tool for flashing FirmPSE app code and BSL code to MSP430
  • USB2ANY: Interface adapter to communicate between FirmPSE GUI and MSP430

List of Software to Download



Step-by-step to getting started: 

Step 1: Order hardware 

Step 2: Download the software 
  • Download the FirmPSE application code image, FirmPSE BSL code image and FirmPSE GUI here.
Step 3: Watch hardware setup and GUI tutorial videos 


Step 4: Download and review the user guides

Step 5: Review the additional design tools listed below

Hardware design files Support and training 

E2E Link

Related TI devices

  • TPS23881
  • TPS23882
  • MSP430F5234
  • LM5020
  • TLV431
  • INA240
  • REF3425
  • LM5050-2
  • TPS7A4001
  • TPS3890

Features
  • IEEE 802.3bt (PoE 2, 4-Pair) 24-port Ethernet switch for Power over Ethernet (PoE) applications. NOTE: For 2-Pair application click here.

  • Off-the shelf, production ready, system software solution (FirmPSE) running on an MSP430.

  • GUI for easy customization of FirmPSE and for real time communications.


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

Schematic/Block Diagram

Quickly understand overall system functionality.

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Test Data

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Design Files

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

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Parametrics
 TIDA-050026-23881.1
(Output Voltage 1)
Vin (Min) (V)44
Vin (Max) (V)57
Vout (Nom) (V)48
Iout (Max) (A)2.5
Output Power (W)120
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyPOE
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Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

TPS23881EVM-083 :
IEEE 802.3bt ready PSE daughter card for 24-port PSE system

$299.00(USD)


Pricing may vary.



ACTIVE

PSEMCUDAUEVM-082 :
MCU daughter card for 24-port IEEE 802.3bt ready PSE system

$199.00(USD)


Pricing may vary.



ACTIVE

PSEMTHR24EVM-081 :
Mother board for 24-port IEEE 802.3bt ready PSE system

$699.00(USD)


Pricing may vary.



ACTIVE

FIRMPSEEVM-BDL :
TPS23881EVM-083 + PSEMCUDAUEVM-082 + PSEMTHR24EVM-081 bundle



Not Available ACTIVE
Contact a Distributor  

TI Devices (11)

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
INA240  -4 to 80V, bidirectional, ultra-precise current sense amplifier with enhanced PWM rejection  Current sense amplifiers  Sample & Buy View Design Kits & Evaluation Modules
ISO1541  2.5-kVrms, isolated unidirectional clock, bidirectional I2C isolator  Isolated interfaces  Sample & Buy View Design Kits & Evaluation Modules
ISO7731  Robust EMC, triple-channel, 2/1, reinforced digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LM5020  13-100V Wide Vin, Current Mode PWM Boost, Flyback, Sepic Controller  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules
LM5050-1  5-V to 75-V, 400-uA IQ ideal diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5234  25 MHz MCU with 128KB Flash, 8KB SRAM, Comparator, DMA, UART/SPI/I2C, Timer, HW Multiplier  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
REF3425  2.5-V low-drift low-power small-footprint series voltage reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
TLV431A  1% accuracy, low-voltage, adjustable precision shunt regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
TPS23881  4-pair, type-4, 8-channel Power-over-Ethernet (PoE) PSE with 200mΩ RSENSE  Power over Ethernet (PoE) ICs  Sample & Buy View Design Kits & Evaluation Modules
TPS3890  Low-quiescent current 1% accuracy supervisor with programmable delay  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A4001  50-mA, 100-V, low-IQ, adjustable low-dropout voltage regulator with enable  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA240 Download
Download
ISO1541 Download Download
ISO7731 Download Download
Download Download
LM5020 Download Download
Download Download
LM5050-1 Download Download
MSP430F5234 Download
REF3425 Download Download
TLV431A Download Download
Download Download
Download -
Download Download
Download -
Download Download
TPS23881 Download
TPS3890 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 documentation

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

Datasheet (2)
Title Type Size (KB) Date
PDF 2914 28 May 2020
PDF 2939 07 Oct 2019
Application notes (1)
Title Type Size (KB) Date
PDF 1439 30 Sep 2019
User guides (1)
Title Type Size (KB) Date
PDF 3038 15 Oct 2019
Design files (6)
Title Type Size (KB) Date
ZIP 11941 23 Oct 2019
ZIP 7518 23 Oct 2019
ZIP 7647 23 Oct 2019
ZIP 1032 23 Oct 2019
ZIP 158 23 Oct 2019
ZIP 1309 23 Oct 2019
Related Tools & Software

Hardware development (4)

Name Part Number Tool Type
IEEE 802.3bt ready PSE daughter card for 24-port PSE system  TPS23881EVM-083  Daughter cards 
MCU daughter card for 24-port IEEE 802.3bt ready PSE system  PSEMCUDAUEVM-082  Daughter cards 
Mother board for 24-port IEEE 802.3bt ready PSE system  PSEMTHR24EVM-081  Evaluation boards 
USB2ANY interface adaptor  USB2ANY  Evaluation boards 

Software development (1)

Name Part Number Software Type
MSP MCU Programmer and Debugger  MSP-FET  Programming tools 


Support & training

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