TPS2379
- IEEE 802.3at Type-2 Hardware Classification With
Status Flag - Auxiliary Gate Driver for High-Power Expansion
- Robust 100-V, 0.5-Ω Hotswap MOSFET
- 1A (Typical) Operating Current Limit
- 140 mA (Typical) Inrush Current Limit
- DC-DC Converter Enable
- 15 kV/8 kV System-level ESD Capability
- PowerPAD™ HSOP Package
The TPS2379 device is an 8-pin integrated circuit that contains all of the features needed to implement an IEEE802.3at type-2 powered device (PD) such as Detection, Classification, Type 2 Hardware Classification, and 140-mA inrush current limit during startup. The low 0.5-Ω internal switch resistance, combined with the enhanced thermal dissipation of the PowerPAD package, enables this controller to continuously handle up to 0.85 A. The TPS2379 integrates a low 0.5-Ω internal switch to allow for up to 0.85 A of continuous current through the PD during normal operation. The TPS2379 device supports higher-power applications through an external pass transistor. The TPS2379 contains several protection features such as thermal shutdown, current limit foldback, and a robust 100-V internal switch.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS2379 IEEE 802.3at PoE High-Power PD Interface With External Gate Driver datasheet (Rev. A) | PDF | HTML | 2015/7/28 | ||
| 應用說明 | PoE Powered Devices Debug Guidelines | PDF | HTML | 2021/7/19 | |||
| 應用說明 | PoE PD Schematic Review Guidelines | PDF | HTML | 2021/4/29 | |||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Lightning Surge Considerations for PoE Powered Devices | 2015/4/30 |
設計與開發
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TPS2379EVM-106 — TPS2379 評估模組
In need of IEEE802.3bt compliance? Check out the TPS2373
SLUC480 — PoE PD Efficiency Calculator
PMP7499 — 非標準 PoE (>25.5W) PoE - 高效率順向轉換器 (12V@5A) 參考設計
This converter provides a high power PoE output of 12V/5A. The TPS2379 PD controller allows the use of an external hot swap FET for increased efficiency. The UCC2897A PWM controller is used to implement a high efficiency active clamp forward converter.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
訂購與品質
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。