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TPS23750

現行

具返馳 DC-DC 控制器的 3 類 PoE PD

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產品規格表

TPS23750

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 0 Vin (max) (V) 67 PoE current limit (min) (mA) 405 PoE inrush limit (mA) (typ) (A) 0.14 rDS(on) per FET (typ) (mΩ) 600 PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Fault response Auto Retry Features Error amplifier, Thermal shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
Vin (min) (V) 0 Vin (max) (V) 67 PoE current limit (min) (mA) 405 PoE inrush limit (mA) (typ) (A) 0.14 rDS(on) per FET (typ) (mΩ) 600 PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Fault response Auto Retry Features Error amplifier, Thermal shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Complete 802.3af PoE Interface
    • Features derived from the TPS2375
    • 100 V, 0.6 Internal Pass MOSFET
    • Standard and Legacy UVLO Choices
    • Fixed 140 mA Inrush Limit
  • Primary Side DC/DC Converter Control
    • Minimum External Component Count
    • Current Mode Control
    • Isolated and Non-Isolated Topologies
    • Programmable Operating Frequency
    • Current Sense Leading-edge Blanking
    • 50% Duty Cycle Limiting
    • Voltage Output Error Amplifier
  • Internal PoE and Converter Sequencing
  • Industry-Standard 20 Lead Package
  • Industrial Temperature Range, -40°C to 85°C
  • APPLICATIONS
    • All PoE PD Devices Including:
      • Wireless Access Points
      • VoIP Phones
      • Security Cameras

PowerPAD is a trademark of Texas Instruments.
  • Complete 802.3af PoE Interface
    • Features derived from the TPS2375
    • 100 V, 0.6 Internal Pass MOSFET
    • Standard and Legacy UVLO Choices
    • Fixed 140 mA Inrush Limit
  • Primary Side DC/DC Converter Control
    • Minimum External Component Count
    • Current Mode Control
    • Isolated and Non-Isolated Topologies
    • Programmable Operating Frequency
    • Current Sense Leading-edge Blanking
    • 50% Duty Cycle Limiting
    • Voltage Output Error Amplifier
  • Internal PoE and Converter Sequencing
  • Industry-Standard 20 Lead Package
  • Industrial Temperature Range, -40°C to 85°C
  • APPLICATIONS
    • All PoE PD Devices Including:
      • Wireless Access Points
      • VoIP Phones
      • Security Cameras

PowerPAD is a trademark of Texas Instruments.

The TPS23750 integrates the functionality of the TPS2375 with a primary side dc/dc PWM controller. The designer can create a front-end solution for PoE-PD applications with minimum external components. The TPS23770 is identical to the TPS23750 with the exception of the undervoltage lockout turn-on voltage, which is compatible with legacy systems.

The PoE front end has all the necessary IEEE 802.3af functions including detection, classification, undervoltage lockout and inrush control. The PoE input switch is integrated within the TPS23750.

The dc/dc controller section is designed to support flyback, forward, and nonsynchronous low-side switch buck topologies.

The external switching MOSFET and current sense resistor provide flexibility in topology, power level, and current limit. The full-featured dc/dc controller includes programmable soft start, hiccup type fault limiting, 50% maximum duty cycle, programmable constant switching frequency, and a true voltage-output error amplifier. Additional protection features provide for robust designs.

The TPS23750 integrates the functionality of the TPS2375 with a primary side dc/dc PWM controller. The designer can create a front-end solution for PoE-PD applications with minimum external components. The TPS23770 is identical to the TPS23750 with the exception of the undervoltage lockout turn-on voltage, which is compatible with legacy systems.

The PoE front end has all the necessary IEEE 802.3af functions including detection, classification, undervoltage lockout and inrush control. The PoE input switch is integrated within the TPS23750.

The dc/dc controller section is designed to support flyback, forward, and nonsynchronous low-side switch buck topologies.

The external switching MOSFET and current sense resistor provide flexibility in topology, power level, and current limit. The full-featured dc/dc controller includes programmable soft start, hiccup type fault limiting, 50% maximum duty cycle, programmable constant switching frequency, and a true voltage-output error amplifier. Additional protection features provide for robust designs.
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TPS23755 現行 IEEE 802.3at PoE PD 與無光耦返馳 DC-DC 控制器 This product utilizes a primary side regulated diode rectified flyback topology and integrates the switching FET.
TPS23758 現行 具無光返馳 DC-DC 控制器的 IEEE 802.3at PoE PD This product utilizes a primary side regulated synchronous rectified flyback topology and integrates the switching FET.

技術文件

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類型 標題 日期
* Data sheet Integrated 100-V IEEE 802.3af PD and DC/DC Controller datasheet (Rev. B) 2008年 2月 7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
Application note Lightning Surge Considerations for PoE Powered Devices 2015年 4月 30日
More literature Исходные проекты ll 2011年 5月 13日
User guide TPS23750 Flyback-Converter Evaluation Board - HPA108. (Rev. D) 2011年 3月 31日
User guide TPS23750 Buck-Converter Evaluation Board - HPA107 (Rev. A) 2011年 1月 3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
Application note Practical Guidelines EMI Compliant PoE 2008年 3月 27日
More literature TPS23750PWP Test Report 2008年 2月 19日
User guide TPS23750 High Efficiency 5V at 2.2A PoE PD Reference Design 2006年 3月 7日
User guide TPS23750 PMP1360 12V at 1A PoE PD Reference Design 2006年 3月 7日
Application note Wall Adapter Powers IEEE 802.3af Powered Device 2006年 2月 1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

TPS23750EVM-107 — TPS23750 評估模組降壓

The TPS23750EVM-107 evaluation module implements an IEEE 802.3af-compliant class-3 power interface and a non-isolated DC/DC switching converter using the Texas Instruments TPS23750 powered device (PD) controller in a typical power-over-Ethernet (PoE) configuration.

使用指南: PDF
TI.com 無法提供
開發板

TPS23750EVM-108 — TPS23750 評估模組返馳

The TPS23750EVM-108 evaluation module implements an IEEE 802.3af-compliant class-3 power interface and a DC/DC switching converter using the Texas Instruments TPS23750 powered device (PD) controller in a typical power-over-Ethernet (PoE) configuration.

使用指南: PDF
TI.com 無法提供
物料清單

TPS23750PWP Bill of Materials

SLUR023.PDF (28 KB)
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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
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配置圖

TPS23750PWP Schematic

SLUR024.PDF (93 KB)
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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

PMP4679 — 適合於 PoE 應用的第 3 級成本與效率最佳化降壓轉換器參考設計

This reference evaluation module, featuring the TPS23750 PoE DC-to-DC controller, is used for class 3 PoE applications where low-cost and high efficiency are required.

The module accepts input voltages between 37-57V ac and output 12V at 0.95A.

Test report: PDF
電路圖: PDF
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HTSSOP (PWP) 20 檢視選項
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