Infineon IPW65R045C7: A 650V CoolMOS™ C7 Power Transistor for High-Efficiency Applications

The relentless pursuit of higher efficiency and power density in modern electronics places immense demands on power conversion systems. At the heart of these systems, the power switching device plays a pivotal role in determining overall performance. The Infineon IPW65R045C7, a 650V superjunction MOSFET from the renowned CoolMOS™ C7 family, stands out as a premier solution engineered to meet these stringent challenges, enabling a new benchmark in high-efficiency applications.

This transistor is specifically designed for demanding switch-mode power supplies (SMPS) across industrial, consumer, and computing domains. Its standout feature is an exceptionally low typical on-state resistance (R DS(on)) of just 45 mΩ, which is a key factor in minimizing conduction losses. When combined with its superior switching characteristics, the device ensures that both switching and conduction losses are kept to an absolute minimum. This translates directly into cooler running systems, reduced heat sinking requirements, and ultimately, higher overall efficiency.

A core innovation of the CoolMOS™ C7 technology is its optimized charge balance. This allows the IPW65R045C7 to achieve what is known as superjunction performance, offering an optimal trade-off between low gate charge (Q G) and low R DS(on). The low gate charge facilitates faster switching speeds and reduces driving losses, making it easier to control and ideal for high-frequency operation. This is particularly crucial for applications aiming to increase power density by using smaller magnetic components and capacitors.

The benefits of this MOSFET extend beyond raw performance metrics. Its high ruggedness and reliability ensure stable operation under strenuous conditions. Furthermore, the technology boasts excellent electromagnetic compatibility (EMC) characteristics, simplifying the filtering stages needed to meet global regulatory standards. This makes the design-in process smoother and more cost-effective.

Typical applications where the IPW65R045C7 excels include:

Server and Telecommunication Power Supplies (PSU)

Industrial Power Systems

High-Power Density Adapters and Chargers

Power Factor Correction (PFC) stages

Solar Inverters and Renewable Energy Systems

ICGOOODFIND: The Infineon IPW65R045C7 CoolMOS™ C7 represents a significant leap in power transistor technology. By masterfully balancing ultra-low conduction losses with superior switching performance, it provides engineers with a critical component to build next-generation, high-efficiency, and high-power-density solutions that are essential for a more energy-efficient future.

Keywords: CoolMOS™ C7, High-Efficiency, Low RDS(on), Superjunction MOSFET, Power Density