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PoE（Power over Ethernet）

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はじめる

PoE（Power over Ethernet）は、IEEE 802.3規格とそこから発展したIEEE 802.3bt、IEEE 802.3at、IEEE 802.3af規格などに基づき、RJ-45ケーブルで無線アクセス･ポイント、VoIP電話機、LED電球などの受電機器（PD）に電力を伝送･供給するとともにデータの搬送を目的とした規格で、広く普及した技術です。

STは、検出と分類や保護機能（低電圧ロックアウト（UVLO）、突入電流制限など）を含めて、この通信規格で必要となるすべての機能との包括的なインタフェースを実現する幅広い製品を提供しています。さらに、これらの製品は、受電機器（PD）向けIEEE 802.3準拠ソリューションの開発を大幅に簡素化できるホットスワップ･パワーMOSFETを制御することが可能です。

power over ethernet poe block diagram

推奨製品

PM8805 system-in-package, IEEE 802.3bt PoE-PD interface

Embedded dual active bridge, powered devices up to 99.9 W

PM8804 high frequency PWM controller

PoE, telecom mid-power applications, active clamp forward, fly-back topologies

PM8803 for IEEE 802.3 at powered devices

PoE, PD interface and PWM controller in a single chip

推奨コンテンツ

All resources

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Resource title
Latest update

アプリケーションノート (5 of 9)

Resource title
Latest update
AN4006 Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster 1.0
13 Sep 2018
13 Sep 2018
AN4006 Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster 1.0
AN4275 IEC 61000-4-5 standard overview 1.0
13 Sep 2018
13 Sep 2018
AN4275 IEC 61000-4-5 standard overview 1.0
AN3373 IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter 1.0
13 Sep 2018
13 Sep 2018
AN3373 IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter 1.0
AN2783 PM8800 demonstration kit for standard and high power PoE PD interface and power supply, with auxiliary sources 2.1
13 Sep 2018
13 Sep 2018
AN2783 PM8800 demonstration kit for standard and high power PoE PD interface and power supply, with auxiliary sources 2.1
AN4687 PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller 1.0
13 Sep 2018
13 Sep 2018
AN4687 PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller 1.0
AN4473 PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller 1.1
13 Sep 2018
13 Sep 2018
AN4473 PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller 1.1
AN4319 Power over Ethernet - PD converter with 12 V 1 A output, standard IEEE 802.3af compliant 1.0
13 Sep 2018
13 Sep 2018
AN4319 Power over Ethernet - PD converter with 12 V 1 A output, standard IEEE 802.3af compliant 1.0
AN4377 Power over Ethernet - PD converter with 5 V 2 A output, standard IEEE 802.3af compliant 1.0
13 Sep 2018
13 Sep 2018
AN4377 Power over Ethernet - PD converter with 5 V 2 A output, standard IEEE 802.3af compliant 1.0
AN4415 Power over Ethernet-PD converter with 3.3 V, 3 A output, standard IEEE 802.3af compliant 1.0
13 Sep 2018
13 Sep 2018
AN4415 Power over Ethernet-PD converter with 3.3 V, 3 A output, standard IEEE 802.3af compliant 1.0
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フライヤ (1)

Resource title
Latest update
PM8803: Integrated PoE+ PD interface and PWM controller 3.1
21 Jun 2018
21 Jun 2018
PM8803: Integrated PoE+ PD interface and PWM controller 3.1

All tools & software

    • 製品型番
      		ステータス
      		概要
      		タイプ
      		サプライヤ

      ST Diode Finder

      量産中

      Diode product finder application for Android and iOS

      		 検索アプリ ST
      ST Diode Finder

      概要:

      Diode product finder application for Android and iOS

      ST Voltage Regulator Finder

      量産中

      Linear and switching voltage regulators and voltage reference applications for smartphones and tablets

      		 検索アプリ ST
      ST Voltage Regulator Finder

      概要:

      Linear and switching voltage regulators and voltage reference applications for smartphones and tablets