TPS23861
- IEEE 802.3at Quad Port PSE controller
- Auto Detect, classification
- Auto Turn-On and disconnect
- Efficient 255-mΩ sense resistor
- Pin-Out enables Two-Layer PCB
- Kelvin Current Sensing
- 4-Point detection
- Automatic mode – as shipped
- No External terminal setting required
- No Initial I2C communication required
- Semi-Automatic mode – set by I2C command
- Continuous Identification and Classification
- Meets IEEE 400-ms TPON specification
- Fast-Port shutdown input
- Operates best when used in conjunction with system reference code http://www.ti.com/product/TPS23861/toolssoftware
- Optional I2C control and monitoring
- –40°C to 125°C Temperature range
- TSSOP 28 Package 9.8 mm x 6.6 mm
The TPS23861 is an easy-to-use, flexible, IEEE802.3at PSE solution. As shipped, it automatically manages four 802.3at ports without the need for any external control.
The TPS23861 automatically detects Powered Devices (PDs) that have a valid signature, determines power requirements according to classification and applies power. Two-event classification is supported for type-2 PDs. The TPS23861 supports DC disconnection and the external FET architecture allows designers to balance size, efficiency and solution cost requirements.
The unique pin-out enables 2-layer PCB designs via logical grouping and clear upper and lower differentiation of I2C and power pins. This delivers best-in-class thermal performance, Kelvin accuracy and low-build cost.
In addition to automatic operation, the TPS23861 supports Semi-Auto Mode via I2C control for precision monitoring and intelligent power management. Compliance with the 400-ms TPON specification is ensured whether in semi-automatic or automatic mode.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS23861 IEEE 802.3at Quad Port Power-over-Ethernet PSE Controller datasheet (Rev. I) | PDF | HTML | 2019年 7月 23日 |
Application brief | Using the TPS23861 and TPS23882B in Autonomous Mode Features and Benefits | PDF | HTML | 2021年 7月 30日 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
EVM User's guide | TPS23861EVM-612: Auto-Mode Evaluation Module for TPS23861 (Rev. E) | 2018年 4月 24日 | ||
Application note | Lightning Surge Considerations for PoE Power Sourcing Equipment Devices | 2017年 2月 20日 | ||
Technical article | Make your PSE system smarter and more efficient | PDF | HTML | 2017年 2月 16日 | |
Application note | TPS23861 VDD Power Solutions | 2016年 8月 24日 | ||
Application note | TPS23861 Power-On Considerations | 2015年 7月 21日 | ||
Application note | SIFOs 802.3at Conformance Report, v 4.0.77, TPS23861 | 2014年 6月 11日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS23861EVM-612 — 適用於四路 IEEE 802.3at PoE PSE 控制器的 TPS23861EVM-612 評估模組
This easy-to-use design can be easily multiplied to 8-, 12-, 16-port and so on, while offering the industry’s best interoperability as well as a double sided PCB design.
Applications include Ethernet switch, surveillance Network Video Recorder (NVR), and small home/office routers.
The full PoE (...)
SLVC460 — TI-USB Serial-Adapter-API and README file
支援產品和硬體
SLVC572 — PI-Commander EVM GUI
支援產品和硬體
產品
eFuses 和熱插拔制器
供電設備
硬體開發
開發板
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TIDA-00290 — PoE PSE 第 2 類 (30W) IEEE 802.3at 全自主四埠解決方案。
TIDA-010046 — 配備 IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD 且符合 EMC 規範的 10/100-Mbps 乙太網路 PHY 參考設計
TIDA-00465 — 單連接埠、乙太網路供電、第 2 類自動模式 PSE 參考設計
TIDA-01411 — 2 型 PoE PSE、6kV 雷擊突波參考設計
PMP20199 — 85-265V AC 輸入、54V/30W 乙太網路供電 PSE 參考設計
PMP20588 — 全自主式單埠第 2 類 (30W) PoE PSE 參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
TSSOP (PW) | 28 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。