High-Performance Power Conversion with Infineon IPD65R660CFD CoolMOS™ CFD2 Superjunction MOSFET

The relentless pursuit of higher efficiency, power density, and reliability in power conversion systems is a defining challenge for modern electronics. Infineon's IPD65R660CFD CoolMOS™ CFD2 represents a significant leap forward, offering engineers a superior component for demanding applications such as server and telecom SMPS, industrial drives, and renewable energy inverters.

At the heart of this MOSFET's performance is its revolutionary superjunction technology. This architecture enables an exceptional low specific on-state resistance (RDS(on)) for a given die size, directly translating to significantly reduced conduction losses. With a maximum RDS(on) of just 66 mΩ at a drain current of 32.5 A, the device operates cooler and more efficiently, even under heavy load conditions.

A key differentiator of the CFD2 series is its integrated fast body diode. Unlike standard Superjunction MOSFETs, which suffer from poor reverse recovery characteristics, the CoolMOS™ CFD2 features a diode with ultra-low reverse recovery charge (Qrr) and soft recovery behavior. This is critical in bridge topologies (e.g., PFC, half-bridge, full-bridge) as it minimizes switching losses, reduces electromagnetic interference (EMI), and enhances system robustness by eliminating dangerous voltage spikes.

Furthermore, the device is engineered for superior switching performance. Its low gate charge (Qg) and output capacitance (Coss) allow for very fast switching speeds, which is essential for increasing switching frequencies. The ability to operate at higher frequencies enables designers to use smaller passive components like inductors and transformers, thereby dramatically increasing the overall power density of the end product.

The IPD65R660CFD, in the proven TO-220 package, strikes an optimal balance between thermal performance and board space. Its high efficiency directly contributes to a lower carbon footprint and operational cost, making it an environmentally conscious choice for next-generation power supplies.

ICGOODFIND: For design engineers focused on pushing the limits of efficiency and power density, the Infineon IPD65R660CFD CoolMOS™ CFD2 is a transformative component. Its combination of low RDS(on), an integrated fast recovery diode, and excellent switching characteristics makes it an outstanding solution for high-performance, high-frequency power conversion systems.

Keywords: Superjunction MOSFET, High-Efficiency, Fast Body Diode, Power Density, Switching Performance.