Infineon IPP90R340C3: A High-Performance Power MOSFET for Efficient Switching Applications
The relentless pursuit of higher efficiency and power density in modern electronics places immense demands on power switching components. At the heart of many advanced power conversion systems, from server SMPS and telecom rectifiers to renewable energy inverters, lies the power MOSFET. The Infineon IPP90R340C3 stands out as a premier solution, engineered to meet these stringent requirements with its exceptional performance characteristics.
This device is a member of Infineon's renowned CoolMOS™ C3 family, which is based on superjunction (SJ) technology. This advanced technological foundation is the key to its superiority, enabling a dramatic reduction in on-state resistance (RDS(on)) for a given silicon area. The IPP90R340C3 boasts an impressively low RDS(on) of just 34 mΩ at a gate voltage of 10 V, which directly translates to lower conduction losses. When a MOSFET is in its on-state, power is lost as heat across its drain-source resistance. By minimizing this value, the IPP90R340C3 operates with significantly higher efficiency, runs cooler, and increases the overall reliability of the end application.

Beyond low conduction losses, switching performance is paramount. The IPP90R340C3 exhibits excellent switching dynamics, characterized by low gate charge (Qg) and low effective output capacitance (Coss(eff)). These parameters are critical for high-frequency operation. A lower gate charge means the driver circuit can turn the device on and off faster and with less energy expended in the process. Similarly, reduced output capacitance minimizes switching losses during the transitional phases. This combination allows designers to push switching frequencies higher, which in turn enables the use of smaller passive components like inductors and transformers, leading to more compact and cost-effective power supply designs.
The device is rated for 900 V drain-source voltage (VDS), making it exceptionally robust and suitable for use in harsh electrical environments where voltage spikes are common. This high voltage rating provides a wide safety margin, enhancing system durability. Furthermore, its avalanche ruggedness ensures it can withstand unclamped inductive switching (UIS) events, a common occurrence in inductive load circuits.
Housed in a TO-220 package, the IPP90R340C3 offers a familiar and versatile form factor that is easy to mount and provides effective thermal management when used with a heatsink. This allows the component to dissipate the generated heat effectively, maintaining performance under high-load conditions.
ICGOODFIND: The Infineon IPP90R340C3 is a benchmark in high-voltage power switching, masterfully balancing ultra-low on-resistance, fast switching capabilities, and rugged reliability. It is an ideal choice for designers aiming to maximize efficiency and power density in demanding applications like switch-mode power supplies, power factor correction (PFC) stages, and motor drives.
Keywords: CoolMOS™ C3, Low RDS(on), High-Frequency Switching, 900 V Rating, Avalanche Ruggedness
