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TPS23882 product advisory and SRAM firmware update is available. Request nowTIDA-050026-23882
24-port (PoE 2, 2-pair) power sourcing equipment reference design for multi-port applications ;
TIDA-050026-23882
Overview
This reference design showcases a Type-3, 30W, 2-Pair 24-port Ethernet switch for Power over Ethernet (PoE) applications which can send up to 30W per port for IEEE 802.3bt Type 3 applications and up to 60W per port for non-standard applications. Based on the MSP430F523x family, TI's TPS2388x FirmPSE system firmware provides a total system level solution for multi-port applications which reduces time to market and frees-up valuable software resources. This design supports port power management with priority, multiple power supplies, legacy PD detection, field upgradability, UART/I2C communication with the host, and more. TI’s FirmPSE system firmware GUI for this design enables the customization of production level PSE system firmware code with just a few clicks of a button and provides real-time communication to the system. In addition, two of these designs may be cascaded through the edge connectors in order to support up to 48-port PSE systems.
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 daughter card for 24 port Type 3/Type 4 4-Pair (90W) PoE PSE applications (sold separately)
- TPS23882EVM-084: TPS23882 daughter card for 24 port Type 3 2-Pair (30W) 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 separately)
- USB2ANY Interface Adapter: Used with PSE system software GUI for I2C/UART Interaction with PSEMCUDAU-082 daughter card (sold separately)
- PSE system software code image
- TPS2373 Evaluation Module for IEEE 802.3bt PoE PD Applications
- TPS2372-4EVM Evaluation Module for IEEE 802.3bt PoE PD Applications
- TPS2372-3 IEEE 802.3bt Type 3 PoE PD Evaluation Module for Lighting
Features
- Configurable GUI and host interface
- Multi-port power management
- Ability to cascade two designs through edge connectors to enable 48-port PSE system
- Supports multiple power supplies
- Legacy PD capacitance measurement
| Output voltage options | TIDA-050026-23882.1 |
|---|---|
| Vin (Min) (V) | 44 |
| Vin (Max) (V) | 57 |
| Vout (Nom) (V) | 48 |
| Iout (Max) (A) | 1.25 |
| Output Power (W) | 60 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | POE |
Communications equipment
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDA032.PDF (2285 K)
Reference design overview and verified performance test data
TIDM285.ZIP (1085 K)
Detailed schematic diagram for design layout and components
TIDM286.ZIP (162 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDM287.ZIP (865 K)
Detailed overview of design layout for component placement
TIDM289.ZIP (7222 K)
Files used for 3D models or 2D drawings of IC components
TIDCFO3.ZIP (11011 K)
Design file that contains information on physical board layer of design PCB
TIDM288.ZIP (6836 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
MSP430 microcontrollers
MSP430F5234 — 25 MHz MCU with 128KB Flash, 8KB SRAM, comparator, DMA, UART/SPI/I2C, timer, HW multiplier
Data sheet: PDFStart development
Hardware
Daughter card
PSEMCUDAUEVM-082 — MCU daughter card for 24-port IEEE 802.3bt ready PSE system
PSEMCUDAUEVM-082 is the MSP430 MCU daughter card for TI's 24-port reference designs with the TPS23881 and TPS23882. This board combined with the GUI enables FirmPSE which is TI's production ready system firmware that can deliver system features such as port power management and the use of multiple (...)
Not available on TI.com
Evaluation board
PSEMTHR24EVM-081 — Mother board for 24-port IEEE 802.3bt ready PSE system
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.
Not available on TI.com
Daughter card
TPS23882EVM-084 — TPS23882 Type-3, 30W, 2-pair, PSE daughter card for 24-port PSE systems
TPS23882EVM-084 is a 24-port (24-channel) daughter card used to evaluate the TPS23882 which is a 2-pair, type-3, 8-channel Power-over-Ethernet (PoE) PSE with 200mΩ sense resistor. This daughter card provides evaluation and reference circuitry for the TPS23882 in high port count applications (...)
Not available on TI.com
Daughter card
FIRMPSEEVM2P-BDL — TPS23882EVM-084 + PSEMCUDAUEVM-082 + PSEMTHR24EVM-081 bundle
TPS23882EVM-084 is a 24-port (24-channel) daughter card used to evaluate the TPS23882 which is a 2-pair, type-3, 8-channel Power-over-Ethernet (PoE) PSE with 200mΩ sense resistor. This daughter card provides evaluation and reference circuitry for the TPS23882 in high port count applications (...)
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | 24-Port (2 pair) Power Sourcing Equipment Ref Design for Multiport Applications | Oct. 22, 2019 | |
| Application brief | Choosing PoE PSE System Software Solutions | PDF | HTML | Aug. 03, 2021 | |
| Technical article | Get more out of your power supply with port power management | PDF | HTML | Nov. 11, 2019 | |
| Analog Design Journal | Challenges and solutions for PoE systems in Ethernet switches | Sep. 30, 2019 |
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