Infineon PEF2426HV1: A High-Voltage Power over Ethernet (PoE) Interface Controller

The evolution of Power over Ethernet (PoE) technology has been pivotal in driving the deployment of networked devices, from IP phones and wireless access points to advanced IoT systems and industrial automation equipment. At the heart of this innovation lies the need for efficient, reliable, and high-power delivery over standard Ethernet cables. The Infineon PEF2426HV1 emerges as a critical solution, specifically engineered as a high-voltage PoE interface controller that addresses the demands of modern high-power applications.

Designed to comply with the IEEE 802.3bt standard, the PEF2426HV1 supports up to 90W of power delivery, making it suitable for power-hungry devices such as PTZ cameras, thin clients, and building automation systems. Its architecture integrates both the power sourcing equipment (PSE) and powered device (PD) functionalities, offering flexibility for various system designs. A standout feature is its high-voltage capability, which allows operation directly from a 48V or even higher DC supply, minimizing the need for additional conversion stages and thereby enhancing overall system efficiency.

The controller incorporates advanced power management features, including automatic classification and dynamic power management, which ensure optimal power allocation and protect against overloads or short circuits. Its robust design ensures high reliability in harsh environments, with built-in protections for over-current, over-voltage, and thermal shutdown. Furthermore, the PEF2426HV1 supports digital interfaces for programmability and monitoring, enabling seamless integration into smart and connected systems.

For designers, this controller simplifies the development process by reducing external component count and offering a compact, thermally efficient package. This not only cuts down board space but also lowers the total cost of ownership. The PEF2426HV1 is particularly advantageous in applications where space, efficiency, and reliability are paramount.

ICGOODFIND: The Infineon PEF2426HV1 stands out as a versatile and high-performance PoE interface controller, pushing the boundaries of power delivery in networked devices. Its compliance with the latest standards, integrated protections, and high-voltage operation make it an ideal choice for next-generation high-power PoE systems.

Keywords:

Power over Ethernet (PoE)

IEEE 802.3bt

High-Voltage Controller

Power Sourcing Equipment (PSE)

Powered Device (PD)