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TPS23882 product advisory and SRAM firmware update is available. Request nowTIDA-050026-23882
24-Port (2-pair) power sourcing equipment reference design for multi-port applications
TIDA-050026-23882
概述
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
特性
- 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
输出电压选项 | 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 |
通信设备
设计文件和产品
设计文件
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产品
在设计中包括 TI 产品和可能的替代产品。
MSP430F5234 — 具有 128KB 闪存、8KB SRAM、比较器、DMA、UART/SPI/I2C、计时器和硬件乘法器的 25MHz MCU
数据表: PDF | HTML开始开发
硬件
TPS23882EVM-084 — TPS23882 24 端口 PSE 系统的型号-3、30 瓦、双对 PSE 子卡
TPS23882EVM-084 是用于评估 TPS23882 的 24 端口(24 通道)子卡,后者是一款带有 200mΩ 传感电阻器的 2 线对 3 类 8 通道以太网供电 (PoE) PSE。该子卡可为高端口数应用(如园区和分支交换机、网络录像机)中的 TPS23882 提供评估和参考电路。
PSEMCUDAUEVM-082 — 适用于 24 端口 IEEE 802.3bt 就绪型 PSE 系统的 MCU 子卡
PSEMCUDAUEVM-082 是 TI 的 TPS23881 和 TPS23882 24 端口参考设计的 MSP430 MCU 子卡。该子卡以及 GUI 可支持使用 TI 的生产就绪型系统固件 FirmPSE(可提供端口电源管理等系统特性)和多个电源。
PSEMTHR24EVM-081 — 适用于 24 端口 IEEE 802.3bt 就绪型 PSE 系统的主板
PSEMTHR24EVM-081 是 TPS23881 和 TPS23882 PSE 控制器的基板。该基板包含 24 个 2 线对/4 线对端口,可用于发送高达 30W/端口(对于 IEEE 802.3at 应用)和 90W/端口(对于 IEEE 802.3bt 应用)的功率。
FIRMPSEEVM2P-BDL — TPS23882EVM-084 + PSEMCUDAUEVM-082 + PSEMTHR24EVM-081 捆绑包
TPS23882EVM-084 是用于评估 TPS23882 的 24 端口(24 通道)子卡,后者是一款带有 200mΩ 传感电阻器的 2 线对 3 类 8 通道以太网供电 (PoE) PSE。该子卡可为高端口数应用(如园区和分支交换机、网络录像机)中的 TPS23882 提供评估和参考电路。
技术文档
类型 | 标题 | 下载最新的英文版本 | 日期 | |||
---|---|---|---|---|---|---|
应用简报 | Choosing PoE PSE System Software Solutions | PDF | HTML | 2021年 8月 3日 | |||
技术文章 | Get more out of your power supply with port power management | PDF | HTML | 2019年 11月 11日 | |||
设计指南 | 适用于多端口应用的 24 端口(2 对)电源设备 参考设计 | PDF | HTML | 英语版 | 2019年 10月 28日 | ||
模拟设计期刊 | Challenges and solutions for PoE systems in Ethernet switches | 2019年 9月 30日 |