PSE Daughter Card
54 V to
PSE_3.3 V
Buck
PSE Ports
MSP430
Daughter Card
MSP430
54-V bus
PSE I2C bus
USB2ANY Connector
GPIOs
Edge
Connector
_signal
I2C
54 V to
ISO_3.3 V
Isolated
DC/DC
JTAG
14 pin
F
la
sh
/D
e
b
u
g
PSE Control Signals
Edge
Connector
_Power
Isolation
UART SPI
Power
Supply 1
Power
Supply 2
Sensing
PG2
GPIOs
PG1
USB2ANY Connector
I2C Repeater
(Optional)
PSE System Motherboard
24-Port RJ45 Connectors
Edge
Connector
_Power
Edge
Connector
_signal
1
SLVUBN3A – May 2019 – Revised October 2019
Copyright © 2019, Texas Instruments Incorporated
24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multi-port
Applications
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
before
evaluation.
Resources
Design Folder
Tool Folder
Tool Folder
Tool Folder
Product Folder
Product Folder
Product Folder
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
•
•
•