Texas Instruments TIDA-050026-23881 Design Manual

Design Guide: TIDA-050026-23881
24-Port (4 Pair) Power Sourcing Equipment Reference
Design for Multi-port Applications
Description
This reference design features an evaluation module
for the 24-port PSE system which contains a hardware
kit, a system firmware image, and a system firmware
GUI. The hardware kit consists of a motherboard
(PSEMTHR24EVM-081), an MSP430 daughtercard
(PSEMCUDAUEVM-082) and a PSE daughtercard
(TPS23881EVM-083). To evaluate the system (both
hardware and software), USB2ANY and MSP-FET
adapters are also needed.
NOTE: The MSP430F5234 on PSEMCUDAUEVM-082
are programmed with pre-production firmware for EVM
testing purposes. Follow the instructions in this user's
guide to flash the latest firmware from
evaluation.
Resources
Design Folder
TIDA-050026-23881
TPS23881EVM-083 Tool Folder
PSEMTHR24EVM-081 Tool Folder
PSEMCUDAUEVM-082 Tool Folder
TPS23881 Product Folder
MSP430F5234 Product Folder
CSD19538Q3A Product Folder
ASK Our E2E™ Experts
Supply 1
Edge
Connector
_Power
Edge
Connector
_signal
SLVUBN3A – May 2019 – Revised October 2019
Submit Documentation Feedback
TI.com before
Power Power
Supply 2
USB2ANY Connector
PG1
PG2
Sensing
I2C Repeater
(Optional)
PSE Control Signals
Isolation
54 V to PSE Daughter Card
PSE_3.3 V
Buck
PSE Ports
24-Port RJ45 Connectors
24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multi-port
Copyright © 2019, Texas Instruments Incorporated
Features
• Onboard power monitoring
• 24 4-pair port system, and expandable to 48 port
system
• Highly flexible system with configurable GUI and
selectable host interface (I2C or UART)
• Multiport power management
• Multiple power supplies
• Supports legacy powered devices (PDs)
Applications
• Campus and branch switches
• Edge router
• Video recorder
54-V bus
PSE I2C bus
54 V to
GPIOs
ISO_3.3 V
MSP430
Isolated
DC/DC
I2C UART SPI GPIOs
USB2ANY Connector
PSE System Motherboard
Edge
Connector
_Power
Edge
Connector
_signal
MSP430
Daughter Card
JTAG
14 pin
Applications
1