計算工具
TPS23753A
- Enhanced ESD ride-through capability
- Optimized for isolated converters
- Complete PoE interface
- Adapter ORing support
- 12-V adapter support
- Programmable frequency with synchronization
- Robust 100-V, 0.7-Ω hotswap MOSFET
- Small 14-Pin TSSOP package
- 15-kV and 8-kV system level ESD capable
- –40°C to 125°C junction temperature range
- Design procedure application note – SLVA305
- Adapter oring application note – SLVA306
The TPS23753A is a combined Power over Ethernet (PoE) powered device (PD) interface and current-mode DC-DC controller optimized specifically for isolated converter designs. The PoE implementation supports the IEEE 802.3at standard as a 13-W, type 1 PD. The requirements for an IEEE 802.3at type 1 device are a superset of IEEE 802.3-2008 (originally IEEE 802.3af).
The TPS23753A supports a number of input-voltage ORing options including highest voltage, external adapter preference, and PoE preference.
The PoE interface features an external detection signature pin that can also be used to disable the internal hotswap MOSFET. This allows the PoE function to be turned off. Classification can be programmed to any of the defined types with a single resistor.
The DC-DC controller features a bootstrap start-up mechanism with an internal, switched current source. This provides the advantages of cycling overload fault protection without the constant power loss of a pullup resistor.
The programmable oscillator may be synchronized to a higher-frequency external timing reference. The TPS23753A features improvements for uninterrupted device operation through an ESD event.
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開發板
TPS23753AEVM-001 — 適用於 TPS23753AEVM-001 的 5Vout、7W、遵循 IEEE 802.3-2005、PD 控制器 EVM
The TPS23753AEVM-001 contains evaluation and reference circuitry for the TPS23753A, which is a Class 3 PoE PD + PWM Controller. It contains input and output power connectors and an array of onboard test points for circuit evaluation. The TPS23753AEVM-002 (3.3-V output) can be configured with simple (...)
使用指南: PDF
開發板
TPS23753AEVM-004 — TPS23753AEVM-004 3.3Vout 10W 遵循 IEEE 802.3-2005 的 PD 控制器、PS 控制器評估模組
TPS23753AEVM-004 contains evaluation and reference circuitry for the TPS23753A, which is a Class 3 PoE PD + PWM Controller. It contains input and output power connectors and an array of onboard test points for circuit evaluation. The TPS23753AEVM-003 (5-V output) and TPS23753AEVM-005 (12-V output) (...)
使用指南: PDF
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。
PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
參考設計
TIDM-TM4C129POEAUDIO — 支援乙太網路供電 (PoE) 的音頻通訊參考設計
此設計採用德州儀器的高性能 TM4C129x 微控制器 (MCU)，其中整合了乙太網路 PHY，能夠有效擷取、交換及播放音訊。電力透過網路（PoE 解決方案）供應，無需額外的外部電源。此應用程式使用 TivaWare 圖形資料庫來實作具備觸控功能的使用者介面，利用 lwIP 透過網路交換資料，並使用 Opus 音訊編解碼器壓縮音訊資料以提升頻寬使用率。
參考設計
TIDM-TM4C129POE — 適用於物聯網連線的 TM4C129POE 乙太網路供電 (PoE) 參考設計
此設計整合德州儀器 PoE 解決方案與 TM4C129x 高性能微控制器，讓客戶能夠在小型電路板中開發 IoT 相關應用。可透過現有網路線供電，同時具備收集、處理以及與雲端交換資料的智慧功能，大幅提升最終應用的價值。
參考設計
PMP9175 — 適用於 PoE 應用的 3 級 5V/2.3A 高效率同步返馳式轉換器參考設計
This converter is used for Class 3 PoE applications where high efficiency and isolation are required. The specific output for this design is 5V@2.3A. The flyback converter with synchronous rectifier provides excellent efficiency and small size for PoE applications such as a IP Phones. The (...)
參考設計
TIDA-00079 — 1 級 PoE - 高效率 IP 攝影機電源模組參考設計
This IP Camera power module is a highly efficient power solution that enables high performance 1080p operation at the Class 1 PoE power level. This innovative power module, used in the low power DM385-AR331 IP Camera, relies on highly efficient switchers like the TPS5432 that are also very cost (...)
參考設計
PMP7355 — 適用於 PoE 應用的第 3 級成本最佳化返馳式轉換器參考設計
This reference evaluation module, featuring the TPS23753A PoE interface and isolated converter controller, is used for class 3 PoE applications where low cost is required.
The flyback topology with diode rectifier results in a low cost converter with reasonable size and efficiency.
參考設計
PMP8803 — 適用於 PoE 應用的第 3 級低成本 12V/1A 返馳式轉換器參考設計
This converter is used for Class 3 PoE applications. The flyback converter with diode rectifier offers low cost while still achieving good efficiency. This converter is well sutied for PoE applications such as IP security cameras. The TPS23753A contains both the PoE Powered Device and the PWM (...)
Test report: PDF
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 14 | Ultra Librarian |
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