Power over Ethernet PD controllers webinar

Discover how the latest Powered Device (PD) controllers offer state-of-the-art solutions for PoE applications


Duration: One-hour 
Webinar Date: Monday, December 17th, 2018

Power over Ethernet (PoE) is a widely adopted technology used to transfer both data and electrical power over an RJ-45 cable.

During this one-hour video you will be introduced to STMicroelectronics’ solutions for PoE applications on the powered device (PD) side that are fully compliant with the latest IEEE 802.3af/at/bt standards.

We will explore the basics of ST’s PoE products and their key features, along with an overview of the different PoE standards. We will also include a detailed description of the architectures available to deliver power through an Ethernet cable, and describe the rich ecosystem of support material and evaluation tools available to facilitate the design process.

Topics Covered:

  • PoE concepts and standards
  • New PD types and classes in the IEEE 802.3bt standard
  • The building blocks of PD power management
  • PoE-PD system partitioning
  • ST's PD-PoE solutions offering


Paolo Sandri is a Product Marketing Manager for power ICs at STMicroelectronics. He has extensive experience in power conversion for computing, networking and consumer markets. Paolo joined ST as analog IC designer in Italy, later moving to his current location in the California bay area. Paolo holds a BSEE and MSEE from the University of Padua (Italy) with specialization in power conversion.


Product information

ST’s PD controllers for PoE applications feature a high level of integration to achieve exceptional efficiency and power density, offering an advanced PD solution for virtually any PoE requirement.

  • PM8805: System-in-package for PoE-PD applications up to 100 W
    The PM8805 is a highly integrated device that embeds two active bridges and an IEEE802.3bt compliant powered device (PD) interface. It can be successfully used in all medium to high power, 2P and/or 4P high efficiency PoE/PoE+ applications.
  • PM8804: PWM controller companion chip for PoE-PD applications
    The PM8804 integrates all the circuitry required to design a smart and efficient 48 V converter. It features a programmable oscillator for the switching frequency, adjustable slope compensation, dual complementary low-side drivers with programmable dead time and soft-start, soft turn-off and a programmable current sense blanking time.