Infineon IPW90R800C3 800V CoolMOS™ Power Transistor for High-Efficiency Applications

The relentless pursuit of higher efficiency and power density in modern electronics demands continuous innovation in power semiconductor technology. Addressing this need, the Infineon IPW90R800C3 stands out as a premier 800V CoolMOS™ power transistor engineered specifically for high-performance, high-efficiency applications. This device leverages Infineon’s advanced superjunction technology, setting a new benchmark for switching performance and reliability in demanding power conversion systems.

A key highlight of the IPW90R800C3 is its exceptionally low effective dynamic loss, achieved through optimized internal capacitances. This characteristic is paramount in high-frequency switching operations, commonly found in switch-mode power supplies (SMPS), server and telecom power systems, industrial drives, and renewable energy inverters. By minimizing switching losses, the transistor enables designers to push switching frequencies higher, which directly contributes to a significant reduction in the size and weight of magnetic components and filters, thereby enhancing overall power density.

Furthermore, the device boasts an ultra-low on-state resistance (R DS(on)) of just 90 mΩ maximum. This low conduction loss ensures that less energy is wasted as heat during operation, which is critical for achieving peak efficiency, especially under full-load conditions. The combination of low switching and conduction losses makes the IPW90R800C3 an ideal choice for high-efficiency power topologies like power factor correction (PFC), half-bridge, and full-bridge circuits.

Robustness and reliability are integral to its design. The 800V drain-source voltage rating provides a formidable safety margin for handling voltage spikes and transients in harsh electrical environments, ensuring stable and long-term operation. The transistor also features a very fast and rugged body diode, which is essential for hard-switching applications, improving system reliability and reducing the need for additional external components.

From a thermal management perspective, the TO-247 package offers superior heat dissipation capabilities, allowing designers to manage thermal budgets more effectively in compact designs.

ICGOOODFIND: The Infineon IPW90R800C3 CoolMOS™ is a superior 800V power transistor that masterfully balances ultra-low dynamic losses, low on-resistance, and high ruggedness. It is a pivotal component for engineers aiming to maximize efficiency, increase power density, and enhance the reliability of their high-performance power systems.

Keywords: High-Efficiency, Superjunction Technology, Low Switching Loss, 800V Rating, Power Density