PMP21103
具备平稳过渡到辅助的 5 类 PoE PD (12V/2.5A) 电源参考设计
PMP21103
概述
This reference design implements an IEEE802.3bt compliant Class 5 Power over Ethernet (PoE) Powered Device (PD) with smooth transition between the PoE input and an auxiliary supply connected to the output. The design consists of a 12-V/2.5-A active clamp forward converter utilizing the UCC2897A controller and allows one PoE Power Source Equipment (PSE) supply and one AC/DC wall adapter auxiliary supply to be used in order to decrease the probability of power and data loss in your system. An IEEE802.3bt compliant TPS2373-4 high power PD controller is utilized to control all PoE functions.
In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.
特性
- Smooth transition when switching between PoE input and 12-V adapter on output
- 89% efficiency with 12-V/2.5-A output and PoE input (FET OR-ing)
- Diode OR-ing option for lower cost
| 输出电压选项 | PMP21103.1 |
|---|---|
| Vin (Min) (V) | 42.5 |
| Vin (Max) (V) | 57 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 2.5 |
| Output Power (W) | 30 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Forward- Active Clamp^POE |
通信设备
我们开发的全面组装电路板仅用于测试和性能验证，不可用于销售。
设计文件和米6体育平台手机版_好二三四
设计文件
下载现成的系统文件，加快您的设计过程。
米6体育平台手机版_好二三四
在设计中包括 TI 米6体育平台手机版_好二三四和可能的替代米6体育平台手机版_好二三四。
技术文档
| 类型 | 标题 | 下载最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 测试报告 | Class 5 PoE PD (12 V/2.5 A) supply reference design with smooth transition | 2019年 1月 25日 |