程式碼範例或展示
TPS2388
- Fully IEEE 802.3at Compliant
- Port Re-Mapping
- 1- and 3-Bit Fast Port Shutdown Input
- “Never Fooled” 4-Point Detection
- Type 1 and Type 2 PD Classification
- Programmable Current Limit With Foldback
- DC Disconnect Detection
- Flexible Processor Controlled Operating Modes
- Semiauto
- Manual
- 14-Bit Port Current and Voltage Monitoring
- 100-ms Rolling Port Current Averaging
- 2% Current Sensing Accuracy
- 0.255-Ω Sense Resistor With Kelvin Sense
- I2C Communication
- I2C Watchdog for Failsafe Operation
- 8- and 16-Bit Access Mode Selectable
- –40°C to 125°C Temperature Operation
- 56-Lead VQFN Package
The TPS2388 is an 8-channel power source equipment (PSE) controller engineered to insert power onto Ethernet cable according to IEEE 802.3at-2012 standard (or 802.3at). The PSE controller can detect powered devices (PDs) that have a valid signature, determine the power requirements according to the classification, and apply power through either one (Type -1) or two-event (Type-2) physical classification. The TPS2388 also has the flexibility to support UPoE and other non-standard loads.
The Port remapping and the device pinout allow designers to enable 2-layer PCB designs and simplify software migration from previous generation PSE devices. The external FET architecture allows designers to further balance size, efficiency, thermal, and solution cost requirements. The current foldback reduces thermal stress on the external MOSFETs during startup and overload conditions allowing the use of cheaper FETs.
The Fast Shutdown (OSS) input provides up to eight levels of per port shutdown priority for applications that require the immediate disabling of multiple ports.
技術文件
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檢視所有 7 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS2388 IEEE 802.3at 8-Channel Power-over-Ethernet PSE Controller datasheet (Rev. A) | PDF | HTML | 2017年 8月 16日 |
| Design guide | 24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multi-port Applic (Rev. A) | 2019年 10月 15日 | ||
| EVM User's guide | TPS2388EVM-612: PoE, PSE, TPS2388 Evaluation Module (Rev. C) | 2019年 5月 8日 | ||
| Design guide | SIFOs 802.3at Conformance Report, v 4.1.05, TPS2388 | 2017年 8月 23日 | ||
| Test report | University of New Hampshire Interoperability Lab Conformance Test | 2017年 8月 23日 | ||
| Test report | University of New Hampshire Interoperability Lab Interoperability Test | 2017年 8月 23日 | ||
| Application note | TPS23861 Power-On Considerations | 2015年 7月 21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)。
開發板
TPS2388EVM-612 — 適用於 IEEE802.3at PoE PSE 應用的 TPS2388 評估模組
The TPS2388EVM-612 features the octal channel, TPS2388, IEEE 802.3at PoE PSE controller. The EVM consists of a motherboard (TPS2388EVM-612) and daughter board (TPS2388EVM-016) containing one TPS2388 device. The TPS2388EVM-612 provides a multi-port base platform interface for TPS2388EVM-016, (...)
使用指南: PDF
程式碼範例或展示
SLUC640 — TPS2388 PoE MSP430 Reference Code for Multi-Port Power Management Applications
支援產品和硬體
產品
供電設備
硬體開發
開發板
開發模組 (EVM) 的 GUI
SLUC642 — TPS2388EVM GUI
支援產品和硬體
產品
供電設備
硬體開發
開發板
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RTQ) | 56 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 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。