Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) is expanding its CoolMOS™ S7 family of High-voltage Superjunction MOSFET to meet the specific needs of static switching applications. The focus of power designs in such applications revolves around minimizing conduction losses, optimizing thermal behavior, and achieving compact, lightweight systems without compromising on quality or cost-effectiveness.
The newly extended portfolio includes innovative QDPAK top-side cooling (TSC) packages, offering a wide range of features in a small footprint. This makes the CoolMOS S7 devices highly advantageous for low-frequency switching applications, providing optimized cost positioning. Notably, the high-power QDPAK packaging enables these MOSFETs to achieve an RDS(on) of only 10 mΩ, the lowest in the market for this voltage class and among SMD packages. This reduction in conduction losses contributes to higher overall efficiency and allows for easy and cost-effective improvements in system performance.
These CoolMOS S7/S7A solutions are specifically tailored for various applications, including SMPS, solar energy systems, battery protection, solid-state relays (SSR), motor-starters, solid-state circuit breakers, PLCs, lighting control, HV eFuse/eDisconnect, and (H)EV on-board chargers. Infineon’s commitment to expanding their high-voltage superjunction MOSFET family aims to address the evolving demands of next-generation solutions in the field of static switching.
The CoolMOS S7 power switches also effectively manage heat dissipation with improved thermal resistance. Thanks to the innovative and efficient QDPAK packaging, they also reduce or even eliminate the need for heat sinks in solid-state designs, resulting in more compact and lighter systems. The MOSFETs are available in both top-side and bottom-side variants, and feature high-pulse current capability, enabling them to handle sudden surges of current. In addition, they exhibit body diode robustness to ensure reliable operation during AC line commutation.
With fewer components required, they reduce part count, resulting in flexible system integration, lower BOM costs, and total cost of ownership (TCO). In addition, these MOSFETs enable shorter reaction times, particularly when breaking a current, facilitating smoother and more efficient operation.
Availability
The new 600 V industrial grade CoolMOS S7 and automotive grade CoolMOS S7A SJ MOSFETs for static switching are available in both top-side (TSC) and bottom-side cooling (BSC) QDPAK (PG-HDSOP-22) variants and can be ordered now. More information is available at www.infineon.com/s7 and www.infineon.com/s7a
