Mother board for 24-port IEEE 802.3bt ready PSE system
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Important Note

The PSEMTHR24EVM-081 is one of three boards used for evaluation of TI's FirmPSE System Firmware. For 4-pair TPS23881 evaluation, please order, please order the FIRMPSEEVM-BDL bundle. For 2-pair TPS23882 evaluation, please order the FIRMPSEEVM2P-BDL bundle

FirmPSE System Firmware GUI, User's Guide, and Host Interface Protocol for port power management applications is available. Request now

TPS23881 Product advisory, latest firmware download are available. Request now

TPS23882 Product advisory, latest firmware download are available. Request now

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The PSEMTHR24EVM-081 mother board features 24 port 2pair/4pair PSE system. When paired with the TPS23881EVM-083 48-channel 4-Pair (90W) PSE daughter card or TPS23882EVM-084 24-channel 2-Pair (30W) PSE daughter card and PSEMCUDAUEVM-082 MCU daughter card (sold separately), users can evaluate this multiple-port PSE system.  

The full PoE Evaluation ecosystem includes the following (optional companion tools also listed):

  • 24 Port PoE PSE Evaluation System
    • PSEMTHR24EVM-081: Mother board for 24 Port PoE PSE applications (sold separately)
    • TPS23881EVM-083: TPS23881 48-channel daughter card for 4-Pair (90W) 24 port Type 3/Type 4 PoE PSE applications (sold seperately)
    • TPS23882EVM-084: TPS23882 24-channel daughter card for 2-Pair (30W) 24 port Type 3 PoE PSE applications (sold separately)
    • PSEMCUDAUEVM-082: MSP430 daughter card for 24 Port PoE PSE applications (sold separately)
    • MSP-FET : Used with PSE system firmware GUI to flash code into MSP430 device (sold seperately)
    • USB2ANY Interface Adapater: Used with PSE system software GUI for I2C/UART Interaction with PSEMCUDAU-082 daughter card (sold seperately)
  • TPS2373 Evaluation Module for IEEE802.3bt PoE PD Applications
  • TPS2372-4EVM Evaluation Module for IEEE802.3bt PoE PD Applications
  • TPS2372-3 IEEE802.3bt Type 3 PoE PD Evaluation Module for Lighting
  • PSE system software code image

  • 24 port PoE PSE system and expandable to 48 ports
  • Highly flexible system with configurable GUI and host interface
  • Multiport power management
  • IEEE802.3bt compliance
  • Mutiple power supplies
  • Supporting Legacy PD

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


Pricing may vary.


TPS23881EVM-083 + PSEMCUDAUEVM-082 + PSEMTHR24EVM-081 bundle

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TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation
User guides (1)
Title Type Size (KB) Date
PDF 3038 15 Oct 2019
Design files (1)
Title Type Size (KB) Date
ZIP 4867 11 Jun 2019
More literature (1)
Title Type Size (KB) Date
PDF 36 23 Apr 2019

Software development (1)

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

Hardware development (3)

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 
USB2ANY interface adaptor  USB2ANY  Evaluation boards 

TI Devices (10)

Part Number Name Product Family
INA240  -4 to 80V, bidirectional, ultra-precise current sense amplifier with enhanced PWM rejection  Current sense amplifiers 
LM5020  13-100V Wide Vin, Current Mode PWM Boost, Flyback, Sepic Controller  Step-up (boost) regulators 
LM5050-1  5-V to 75-V, 400-uA IQ ideal diode controller  Power switches 
REF3425  2.5-V low-drift low-power small-footprint series voltage reference  Voltage references 
TLV431  1.5% accuracy, low-voltage, adjustable precision shunt regulator  Voltage references 
TLV7021  Low power, small size comparator with open-drain output  Amplifiers 
TPS23881  4-pair, type-4, 8-channel Power-over-Ethernet (PoE) PSE with 200mΩ RSENSE  Power over Ethernet (PoE) ICs 
TPS23882  Type-3 2-pair 8-channel PoE PSE controller with SRAM and 200 mΩ Rsense  Power over Ethernet (PoE) ICs 
TPS3890  Low-quiescent current 1% accuracy supervisor with programmable delay  Power management 
TPS7A4001  50-mA, 100-V, low-IQ, adjustable low-dropout voltage regulator with enable  Power management 

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