PSEMTHR24EVM-081

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

PSEMTHR24EVM-081

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Overview

PSEMTHR24EVM-081 is the base board for the TPS23881 and TPS23882 PSE controllers. This board contains 24 2-Pair / 4-Pair ports that can that can be used to send up to 30W/port for IEEE 802.3at applications and up to 90W/port for IEEE 802.3bt applications.

Features
  • 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 powered devices
Power sourcing equipment
TPS23881 4-pair, type-4, 8-channel Power-over-Ethernet (PoE) PSE with 200mΩ RSENSE & autonomous mode TPS23882 Type-3 2-pair 8-channel PoE PSE controller with SRAM and 200 mΩ Rsense

 

Boost controllers (external switch)
LM5020 13-100V Wide Vin, Current Mode PWM Boost, Flyback, Sepic Controller

 

Comparators
TLV7021 Low power, small size comparator with open-drain output

 

Current sense amplifiers analog output
INA240 -4 to 80V, bidirectional, ultra-precise current sense amplifier with enhanced PWM rejection

 

Ideal diode/ORing controllers
LM5050-1 5-V to 75-V, 400-uA IQ ideal diode controller

 

Linear regulators (LDO)
TPS7A4001 50-mA, 100-V, low-IQ, adjustable low-dropout voltage regulator with enable

 

Series voltage references
REF3425 2.5-V, low-drift, low-power, small-footprint series voltage reference

 

Shunt voltage references
TLV431 1.5% accuracy, low-voltage, adjustable precision shunt regulator

 

Supervisor & reset ICs
TPS3890 Low-quiescent current 1% accuracy supervisor with programmable delay
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Important note

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

Order & start development

Explore packages of hardware, software and documentation

HARDWARE AND SOFTWARE PACKAGE

Design and develop 2-pair PSE systems for IEEE 802.3bt Type 3 applications

HARDWARE AND SOFTWARE PACKAGE

Design and develop 4-pair PSE systems for IEEE 802.3bt Type 3 and Type 4 applications

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Evaluation board

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

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

Design files

PSEMTHR24EVM-081 Gerber SBAC255.ZIP (4867 KB)

Technical documentation

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Type Title Date
Technical article Get more out of your power supply with port power management Nov. 11, 2019
User guide 24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multi-port Applic (Rev. A) Oct. 15, 2019
More literature PSEMTHR24EVM-081 EU Declaration of Conformity (DoC) (Rev. A) Apr. 23, 2019

Related design resources

Hardware development

EVALUATION BOARD
USB2ANY USB2ANY interface adapter
DAUGHTER CARD
PSEMCUDAUEVM-082 MCU daughter card for 24-port IEEE 802.3bt ready PSE system TPS23881EVM-083 IEEE 802.3bt ready PSE daughter card for 24-port PSE system
HARDWARE PROGRAMMING TOOL
MSP-FET MSP MCU Programmer and Debugger

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