Infineon IPL65R340CFDAUMA1 650V CoolMOS™ Power Transistor: Key Features and Applications

The relentless pursuit of higher efficiency, power density, and reliability in power electronics is driven by innovations in semiconductor technology. At the forefront of this evolution is Infineon's IPL65R340CFDAUMA1, a 650V superjunction MOSFET (CoolMOS™) that sets a new benchmark for performance in demanding applications. This device exemplifies the advanced engineering that power system designers have come to rely on for cutting-edge designs.

Key Features

The IPL65R340CFDAUMA1 is engineered with Infineon's proprietary superjunction (SJ) technology, which is the cornerstone of the CoolMOS™ family. This technology enables a drastic reduction in on-state resistance (R DS(on)) for a given silicon area, leading to significantly lower conduction losses. With a maximum R DS(on) of just 0.340 Ω at 25°C, this transistor ensures minimal power dissipation during operation.

A critical figure of merit for high-voltage switches is the gate charge (Q G). This device features an optimized low gate charge, which simplifies drive circuit design and drastically reduces switching losses. The low Q G allows for faster switching frequencies, which in turn enables the use of smaller passive components like magnetics and capacitors, thereby increasing overall power density.

Furthermore, the transistor boasts exceptional switching behavior and a robust body diode with good reverse recovery characteristics. This enhances its reliability in circuits where hard commutation is unavoidable, such as in power factor correction (PFC) stages. Its high avalanche ruggedness ensures it can withstand unexpected voltage spikes, providing an additional layer of protection in harsh operating environments. The device is also AEC-Q101 qualified, making it suitable for automotive applications.

Primary Applications

The combination of high voltage capability, low losses, and fast switching speed makes the IPL65R340CFDAUMA1 exceptionally versatile. Its primary application domains include:

Switched-Mode Power Supplies (SMPS): It is an ideal choice for high-efficiency server and telecom power supplies, where achieving 80 Plus Titanium efficiency levels is critical. Its performance is also paramount in industrial SMPS.

Power Factor Correction (PFC): This CoolMOS™ device is extensively used in both interleaved and single-phase boost PFC circuits, a critical stage for improving the power quality of AC-DC converters.

Solar and Renewable Energy Systems: Inverters for solar micro-inverters and string inverters benefit from its high efficiency and reliability, maximizing energy harvest.

Lighting: It drives high-performance designs for industrial and automotive LED lighting drivers, requiring efficient and compact form factors.

Motor Control and Drives: The transistor can be used in inverter stages for controlling motors in various industrial and appliance applications.

ICGOOODFIND: The Infineon IPL65R340CFDAUMA1 is more than just a MOSFET; it is a pivotal component enabling the next generation of high-efficiency, high-power-density systems. Its optimal balance of low R DS(on), low gate charge, and high switching speed addresses the core challenges of modern power design. For engineers developing cutting-edge power supplies, automotive systems, or renewable energy solutions, this CoolMOS™ transistor represents a top-tier solution for achieving superior performance and reliability.

Keywords:

1. CoolMOS™

2. Superjunction Technology

3. Low R DS(on)

4. High Switching Speed

5. Power Density