Infineon IPB60R040C7 CoolMOS™ Power Transistor: Technical Specifications and Application Analysis
The relentless pursuit of higher efficiency, power density, and reliability in power electronics has driven the evolution of MOSFET technology. At the forefront of this innovation is Infineon's CoolMOS™ series, with the IPB60R040C7 standing out as a prime example of advanced superjunction (SJ) technology tailored for high-performance applications. This article delves into the technical specifications and provides an analysis of its practical applications.
Technical Specifications Breakdown
The IPB60R040C7 is a 600V N-channel power transistor built on Infineon's proprietary CoolMOS™ C7 generation. Its key specifications define its operational capabilities:
Breakdown Voltage (VDS): Rated for 600 V, it is ideally suited for off-line switch-mode power supplies (SMPS) operating from universal mains input (85 V AC to 265 V AC).
On-State Resistance (RDS(on)): A remarkably low 40 mΩ (max. at VGS = 10 V, TJ = 25°C) is its most defining characteristic. This ultra-low resistance is the primary source of its high efficiency, as it minimizes conduction losses.
Package: Housed in a TO-263-3 (D2PAK) surface-mount package (SMD), it offers a robust footprint for automated assembly and excellent thermal performance for power dissipation.
Gate Charge (Qg): With a typical total gate charge (Qg = 60 nC), the device exhibits excellent switching performance. The low gate charge translates to reduced driving losses and simpler, more efficient gate drive circuitry.
Figure of Merit (FOM): The combination of low RDS(on) and low Qg results in an outstanding FOM (RDS(on) Qg), a key metric for assessing overall switching performance in high-frequency circuits.
Application Analysis
The technical profile of the IPB60R040C7 makes it a superior choice for a wide range of demanding power conversion topologies. Its primary applications include:
1. Switch-Mode Power Supplies (SMPS): It is a benchmark device for high-efficiency server and telecom power supplies. Its low losses directly contribute to meeting stringent 80 PLUS Titanium and Platinum efficiency standards, reducing energy waste and operational costs in data centers.
2. Power Factor Correction (PFC): The device is exceptionally well-suited for both interleaved and single-phase boost PFC stages. Its fast switching speed and high voltage rating allow for efficient shaping of the input current to be in phase with the input voltage, a critical requirement for compliance with harmonic current regulations (e.g., IEC 61000-3-2).

3. Solar Inverters and UPS Systems: In renewable energy and backup power applications, efficiency and reliability are paramount. The IPB60R040C7 can be used in the inverter and DC-DC converter stages of solar micro-inverters and Uninterruptible Power Supplies (UPS) to maximize power harvest and battery runtime.
4. Industrial Motor Drives and Lighting: For high-power LED lighting drivers and low-to-medium power industrial motor control circuits, this MOSFET provides the necessary robustness and efficiency to ensure long-term, reliable operation.
Advantages in Design
Designers leveraging the IPB60R040C7 benefit from several advantages:
Reduced Heat Generation: Lower conduction and switching losses mean less heat is generated, allowing for smaller heatsinks and thus a more compact system design.
Higher Switching Frequencies: The low FOM enables operation at higher frequencies, which in turn permits the use of smaller magnetic components (inductors and transformers), further increasing power density.
Improved System Reliability: The reduced thermal stress on the component and the surrounding system enhances overall long-term reliability.
ICGOOODFIND
The Infineon IPB60R040C7 CoolMOS™ C7 represents a pinnacle of superjunction MOSFET technology, offering an exceptional blend of ultra-low on-state resistance and superior switching performance. Its specifications make it an indispensable component for designers aiming to push the boundaries of efficiency and power density in modern AC-DC power conversion, PFC circuits, and various industrial applications. By minimizing energy losses, it plays a crucial role in creating greener and more efficient electronic systems.
Keywords:
1. CoolMOS™ C7
2. Ultra-Low RDS(on)
3. High-Efficiency PFC
4. SMPS Design
5. Superjunction MOSFET
