Infineon IPD50R280CEAUFMA1: A 500V N-Channel MOSFET for High-Efficiency Power Conversion

In the relentless pursuit of higher efficiency and power density in modern electronic systems, the choice of switching components is paramount. The Infineon IPD50R280CEAUMA1 stands out as a high-performance N-channel power MOSFET engineered to meet these demanding challenges, particularly in applications requiring robust 500V operation.

This MOSFET is fabricated using Infineon's advanced superjunction (SJ) technology, a cornerstone of its design that enables exceptionally low on-state resistance. With a maximum RDS(on) of just 280mΩ at 10V gate drive, the device minimizes conduction losses. This characteristic is crucial for high-efficiency power conversion, as it directly translates to reduced heat generation and improved overall system thermal performance. The low gate charge (QG) and low effective output capacitance (COSS(eff)) further enhance its prowess by enabling very fast switching speeds, which are essential for high-frequency operation in switch-mode power supplies (SMPS), thereby allowing for the use of smaller magnetic components and a reduction in system size.

The 500V drain-source voltage rating provides a comfortable safety margin for operations in universal input mains applications (85 – 265 VAC) and power factor correction (PFC) stages, ensuring reliable operation even under voltage spikes and stressful conditions. Housed in a TO-leadless (TOLL) package, the IPD50R280CE offers superior thermal resistance and power dissipation capabilities compared to traditional packages like DPAK or D2PAK. This compact form factor also minimizes parasitic inductance, which is critical for preserving clean switching waveforms and minimizing electromagnetic interference (EMI).

Primary applications for this MOSFET include:

Server & Telecom SMPS: Where efficiency is critical for reducing operational costs and cooling requirements.

Power Factor Correction (PFC): Both interleaved and single-phase boost stages benefit from its high voltage rating and switching performance.

Solar Inverters: In auxiliary power supplies and DC-DC conversion stages.

Industrial Motor Drives & Lighting: For efficient and reliable power control.

ICGOOODFIND: The Infineon IPD50R280CEAUMA1 is a benchmark component that masterfully balances high voltage robustness, low conduction losses, and fast switching capabilities. Its advanced superjunction design and innovative TOLL packaging make it an ideal solution for engineers designing next-generation, high-efficiency, and high-power-density AC-DC and DC-DC converters.

Keywords: Superjunction Technology, Low RDS(on), High-Efficiency, Fast Switching, TOLL Package