Infineon IAUC100N04S6L020ATMA1 100A OptiMOS 5 Power MOSFET for High-Efficiency Automotive Applications

The relentless drive towards vehicle electrification demands power semiconductors that deliver uncompromising efficiency, reliability, and power density. Addressing these challenges head-on, Infineon Technologies introduces the IAUC100N04S6L020ATMA1, a 100 A member of the OptiMOS™ 5 40 V family, engineered specifically for the rigorous demands of modern automotive systems.

This MOSFET sets a new benchmark for performance in high-current automotive applications. Its primary strength lies in its exceptionally low typical on-state resistance (RDS(on)) of just 1.0 mΩ (max. at 10 V). This ultra-low resistance is pivotal in minimizing conduction losses, which directly translates into higher system efficiency, reduced heat generation, and the potential for smaller, more lightweight thermal management solutions. For applications like brushed and brushless DC motor control in electric power steering (EPS), pumps, and fans, this means smoother operation and longer lifespan.

Furthermore, the device is optimized for high-frequency switching. The superior gate charge (QG) and figure-of-merit (FOM) characteristics ensure swift switching transitions, which are critical for reducing switching losses in pulse-width modulation (PWM) controllers. This is especially beneficial for high-efficiency DC-DC converters within 48V/12V dual-battery systems and other power conversion stages, where every percentage point of efficiency gain contributes to lower fuel consumption and extended range in electric vehicles (EVs).

Beyond pure electrical performance, the IAUC100N04S6L020ATMA1 is built for robustness and reliability in harsh automotive environments. It features an AEC-Q101 qualified profile, ensuring it meets the stringent quality and durability standards required for automotive electronics. The strong avalanche ruggedness and high peak current capability provide an additional safety margin against voltage transients and unexpected load spikes common in automotive electrical systems. Packaged in a SuperSO8 (SSO-8) housing, it offers an excellent power-to-footprint ratio, which is essential for the space-constrained modules found in modern vehicles.

ICGOOODFIND: The Infineon IAUC100N04S6L020ATMA1 stands out as a premier solution for designers pushing the boundaries of automotive power electronics. Its combination of ultra-low RDS(on), high switching performance, and automotive-grade ruggedness makes it an ideal choice for creating more efficient, powerful, and compact systems, from advanced drivetrains to critical auxiliary modules.

Keywords: OptiMOS 5, Low RDS(on), Automotive AEC-Q101, High-Current Switching, Power Efficiency