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乙太網路供電 (PoE) IC
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TPS2388

現行

2 對 Type-2 8 通道 PoE PSE

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產品規格表

TPS2388

現行
立即訂購

產品詳細資料

PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2 MPS method DC Disconnect Features Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable ICUT Number of PSE ports 8 Pair control 2-Pair Alt A Vin (max) (V) 57 Vin (min) (V) 44 FET External ILIM Programmable Operating temperature range (°C) -40 to 125 Rating Catalog
PoE standards supported 802.3at Type 1 (802.3af), 802.3at Type 2 MPS method DC Disconnect Features Current Limit with Foldback, Fast shutdown, Multi Level Port Priority, Over Current Reporting, Over Temp Reporting, Port remapping, Programmable ICUT Number of PSE ports 8 Pair control 2-Pair Alt A Vin (max) (V) 57 Vin (min) (V) 44 FET External ILIM Programmable Operating temperature range (°C) -40 to 125 Rating Catalog
VQFN (RTQ) 56 64 mm² (8 mm × 8 mm)
  • 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
  • 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.

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.
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TPS23881 現行 具有 200-mΩ RSENSE 的 4 對、Type-4、8 通道 PoE PSE  This product is an IEEE802.3bt-ready PSE controller.

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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 TPS2388 IEEE 802.3at 8-Channel Power-over-Ethernet PSE Controller datasheet (Rev. A) PDF | HTML 2017/8/16
設計指南 24-Port (4 Pair) Power Sourcing Equipment Reference Design for Multiport Applications (Rev. C) PDF | HTML 2026/3/31
設計指南 SIFOs 802.3at Conformance Report, v 4.1.05, TPS2388 2017/8/23
應用說明 TPS23861 Power-On Considerations 2015/7/21

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

TPS2388EVM-612 具有八通道 TPS2388，IEEE 802.3at PoE PSE 控制器。該 EVM 包含一塊主機板 (TPS2388EVM-612) 與一塊搭載 TPS2388 元件的子卡 (TPS2388EVM-016)。TPS2388EVM-612 主機板為 TPS2388EVM-016 子卡、MSP-EXP430G2 (LaunchPad™) 及 USB2ANY（USB 介面轉接器）提供多埠基礎平台介面。


需要支援 IEEE802.3bt 的 PSE 控制器嗎？進一步瞭解 TPS23880。
使用指南: PDF
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程式碼範例或展示

SLUC636 — TPS2388 PoE MSP430 Reference Code for Basic Applications

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程式碼範例或展示

SLUC640 — TPS2388 PoE MSP430 Reference Code for Multi-Port Power Management Applications

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開發模組 (EVM) 的 GUI

SLUC642 — TPS2388EVM GUI

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RTQ) 56 Ultra Librarian
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