首頁 電源管理 乙太網路供電 (PoE) IC 供電產品
首頁
電源管理
乙太網路供電 (PoE) IC
供電產品

TPS23752

現行

具返馳 DC-DC 控制器和休眠模式功能的 IEEE 802.3at PoE 介面

立即訂購
產品規格表

TPS23752

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 9.2 Vin (max) (V) 57 PoE current limit (min) (mA) 850 PoE inrush limit (mA) (typ) (A) 0.14 rDS(on) per FET (typ) (mΩ) 450 PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2 PD power level 13W, 25W DC/DC control PD and DC/DC Fault response Auto Retry Features Primary-side adapter priority, Sleep Mode, Thermal shutdown, VFO Operating temperature range (°C) -40 to 85 Rating Catalog
Vin (min) (V) 9.2 Vin (max) (V) 57 PoE current limit (min) (mA) 850 PoE inrush limit (mA) (typ) (A) 0.14 rDS(on) per FET (typ) (mΩ) 450 PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2 PD power level 13W, 25W DC/DC control PD and DC/DC Fault response Auto Retry Features Primary-side adapter priority, Sleep Mode, Thermal shutdown, VFO Operating temperature range (°C) -40 to 85 Rating Catalog
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • IEEE 802.3at Classification With Status Flag
  • High Efficiency Solutions Over Wide Load Range
  • Powers Up to 25.5 W PDs
  • Robust 100 V, 0.5 Ω Hotswap MOSFET
  • Synchronous Rectifier Disable Signal
  • PowerPAD™ TSSOP Packages
  • Complete PoE Interface Plus DC-DC Controller
  • Adapter ORing Support
  • Programmable Frequency
  • TPS23752 Supports Ultra-Low Power Sleep Modes
  • –40°C to 125°C Junction Temperature Range
  • IEEE 802.3at Classification With Status Flag
  • High Efficiency Solutions Over Wide Load Range
  • Powers Up to 25.5 W PDs
  • Robust 100 V, 0.5 Ω Hotswap MOSFET
  • Synchronous Rectifier Disable Signal
  • PowerPAD™ TSSOP Packages
  • Complete PoE Interface Plus DC-DC Controller
  • Adapter ORing Support
  • Programmable Frequency
  • TPS23752 Supports Ultra-Low Power Sleep Modes
  • –40°C to 125°C Junction Temperature Range

The TPS23751 is a 16-pin integrated circuit that combines a Power-over-Ethernet (PoE) powered device (PD) interface and a current-mode DC-DC controller optimized specifically for applications requiring high efficiency over a wide load range.

The PoE interface implements type-2 hardware classification per IEEE 802.3at. It also includes an auxiliary power detect (APD) input and a disable function (DEN). A 0.5-Ω, 100-V pass MOSFET minimizes heat dissipation and maximizes power utilization.

The DC-DC controller features internal soft-start, a bootstrap startup current source, current-mode control with slope compensation, blanking, and current limiting. Efficiency is enhanced at light loads by disabling synchronous rectification and entering variable frequency operation (VFO).

The TPS23752 is a 20-pin extended version of the TPS23751 with the addition of a Sleep Mode feature. Sleep Mode disables the converter to minimize power consumption while still generating the Maintain Power Signature (MPS) required by IEEE802.3at.

The TPS23751 is a 16-pin integrated circuit that combines a Power-over-Ethernet (PoE) powered device (PD) interface and a current-mode DC-DC controller optimized specifically for applications requiring high efficiency over a wide load range.

The PoE interface implements type-2 hardware classification per IEEE 802.3at. It also includes an auxiliary power detect (APD) input and a disable function (DEN). A 0.5-Ω, 100-V pass MOSFET minimizes heat dissipation and maximizes power utilization.

The DC-DC controller features internal soft-start, a bootstrap startup current source, current-mode control with slope compensation, blanking, and current limiting. Efficiency is enhanced at light loads by disabling synchronous rectification and entering variable frequency operation (VFO).

The TPS23752 is a 20-pin extended version of the TPS23751 with the addition of a Sleep Mode feature. Sleep Mode disables the converter to minimize power consumption while still generating the Maintain Power Signature (MPS) required by IEEE802.3at.

open-in-new 尋找其它 供電產品
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 11
類型 標題 日期
* Data sheet TPS2375x IEEE 802.3at PoE Interface With Flyback DC-DC Controller datasheet (Rev. E) PDF | HTML 2018年 1月 26日
Application note PoE Powered Devices Debug Guidelines PDF | HTML 2021年 7月 19日
Application note PoE PD Schematic Review Guidelines PDF | HTML 2021年 4月 29日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Technical article Maximizing PoE PD efficiency on a budget PDF | HTML 2015年 11月 10日
Application note Lightning Surge Considerations for PoE Powered Devices 2015年 4月 30日
Application note TPS23752 Maintain Power Signature Operation in Sleep Mode 2013年 4月 12日
User guide TPS23752EVM-145 EVM: Evaluation Module for TPS23752 2012年 7月 28日
Application note High Efficiency Class 4 PoE Powered Device 2011年 3月 23日
Application note Advanced Adapter ORing Solutions using the TPS23753 (Rev. A) 2009年 2月 9日
Application note Designing an EMI Compliant PoE with Isolated Flyback 2008年 5月 20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

TPS23752EVM-145 — TPS23752 評估模組

The Texas Instruments TPS23752EVM-145 evaluation module (EVM) helps designers evaluate the performance of the TPS23752 IEEE 802.3at PoE Interface and Green-mode DC/DC Controller. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.
使用指南: PDF
TI.com 無法提供
計算工具

SLUC480 — PoE PD Efficiency Calculator

支援產品和硬體

支援產品和硬體

產品
供電產品
TPS2375 — 具有鎖存保護的 3 類 PoE PD TPS23750 — 具返馳 DC-DC 控制器的 3 類 PoE PD TPS23751 — 具返馳 DC-DC 控制器的 IEEE 802.3at PoE 介面 TPS23752 — 具返馳 DC-DC 控制器和休眠模式功能的 IEEE 802.3at PoE 介面 TPS23753 — IEEE 802.3-2005 PoE 介面和隔離式轉換控制器 TPS23753A — 具強化 ESD 穿越功能的 IEEE 802.3-2005 PoE 介面和隔離式轉換控制器 TPS23754 — IEEE 802.3at 高效率 PoE 介面及 DC/DC 控制器 TPS23754-1 — IEEE 802.3at PoE 介面和隔離式轉換器控制器 TPS23756 — 具返馳/順向 DC-DC 控制器與 12V-57V 轉接器支援的 4 類 PoE PD TPS23757 — 具返馳/順向 DC-DC 控制器與 12V-57V 轉接器支援的 3 類 PoE PD TPS2376 — 具有可調整 UVLO 閾值和鎖存保護的 3 類 PoE PD TPS2377 — 具有傳統 UVLO 閾值和鎖存保護的 3 類 PoE PD TPS2378 — 具 AUX 控制的 IEEE 802.3at PoE 高功率 PD 介面 TPS23785B — 高功率高效 PoE PD 和 DC 至 DC 控制器 TPS2379 — 具外部閘極驅動器的 IEEE 802.3at PoE 高功率 PD 介面
下載
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 (...)
要求
參考設計

PMP30290 — 18.5V 至 57V 輔助輸入至 5.3V、10W PoE 隔離式同步返馳參考設計

This compact reference design is a typical PoE application, supplying 10W at 5.3V from Ethernet power. Data filter, external auxiliary input and EMI filter are all on board. The synchronous rectification improves the efficiency, important at only 5.3V output voltage.
Test report: PDF
電路圖: PDF
參考設計

PMP9013 — 適用於 PoE 且具備休眠模式的 4 級同步返馳式轉換器 (5V @ 4.5A)

The PMP9013 is an IEEE802.3at, Type 2 compliant, high-efficiency synchronous flyback converter (5V @4.5A) with sleep mode used for PD design in PoE applications. The reference design has the ability to allow an external adapter to supply power to the board if PoE power is not available.
Test report: PDF
電路圖: PDF
參考設計

PMP8812 — 4 級 - 高效率 12V 4 級 PoE 轉換器參考設計

This design is a 12V/2.1A synchronous flyback converter for high efficiency PoE applications. The TPS23752 combines the Powered Device and PWM controllers in one package. Additional features are synchronous rectifier disable for improved light load efficiency and support for ulta low power sleep (...)
Test report: PDF
封裝 引腳 下載
HTSSOP (PWP) 20 檢視選項
適用 TI 的評估品項標準條款與條件。

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
  • 資格摘要
  • 進行中可靠性監測
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。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片