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Power over Ethernet (PoE) is a widely adopted technology used to transfer power and supply the powered device (PD) including wireless access points, VoIP phones and even LED bulbs over an RJ-45 cable also carrying data as described in the IEEE 802.3 standard and its evolutions including IEEE 802.3bt, IEEE 802.3at and IEEE 802.3af.

We provide a range of products providing a complete interface with all the functions required by the communication standard including detection and classification as well as protection features including under-voltage lockout (UVLO) and in-rush current limitation. In addition, these products can control Hot-swap power MOSFETs that can greatly simplify the development of IEEE 802.3 compliant solutions for powered devices (PD).

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Technical Documentation

    • Description Version Size Action
      AN4006
      Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster
      1.0
      3.11 MB
      PDF
      AN4275
      IEC 61000-4-5 standard overview
      1.0
      383.23 KB
      PDF
      AN3373
      IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter
      1.0
      1.23 MB
      PDF
      AN2783
      PM8800 demonstration kit for standard and high power PoE PD interface and power supply, with auxiliary sources
      2.1
      1.3 MB
      PDF
      AN4687
      PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller
      1.0
      2.46 MB
      PDF
      AN4473
      PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller
      1.1
      2.61 MB
      PDF
      AN4319
      Power over Ethernet - PD converter with 12 V 1 A output, standard IEEE 802.3af compliant
      1.0
      1.84 MB
      PDF
      AN4377
      Power over Ethernet - PD converter with 5 V 2 A output, standard IEEE 802.3af compliant
      1.0
      1.76 MB
      PDF
      AN4415
      Power over Ethernet-PD converter with 3.3 V, 3 A output, standard IEEE 802.3af compliant
      1.0
      5.57 MB
      PDF
      AN4006

      Designing a high-efficiency (60 W on 4 pairs) PoE converter using the PM8803 and an external current booster

      AN4275

      IEC 61000-4-5 standard overview

      AN3373

      IEEE802.3at compliant PD + PS design based on PM8803 low power, synchronous flyback PoE converter

      AN2783

      PM8800 demonstration kit for standard and high power PoE PD interface and power supply, with auxiliary sources

      AN4687

      PoE synchronous flyback, IEEE802.3at compliant, 3.3 V - 6 A PD converter based on the PM8803 controller

      AN4473

      PoE synchronous flyback, IEEE802.3at compliant, 5V - 4A PD converter based on the PM8803 controller

      AN4319

      Power over Ethernet - PD converter with 12 V 1 A output, standard IEEE 802.3af compliant

      AN4377

      Power over Ethernet - PD converter with 5 V 2 A output, standard IEEE 802.3af compliant

      AN4415

      Power over Ethernet-PD converter with 3.3 V, 3 A output, standard IEEE 802.3af compliant

Publications and Collaterals

    • Description Version Size Action
      PM8803: Integrated PoE+ PD interface and PWM controller 3.1
      216.44 KB
      PDF

      PM8803: Integrated PoE+ PD interface and PWM controller

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