High-Reliability N-Channel Automotive MOSFETs

The automotive sector is experiencing a significant increase in the integration of electronic components, driven by the growing demand for improved safety features and enhanced convenience for drivers and passengers. Simultaneously, there is a critical need for enhanced power efficiency to optimize fuel consumption and electricity usage in vehicles. Particularly for MOSFETs used in switching applications within automotive systems, there is a rising demand for lower ON resistance to reduce energy loss and minimize heat generation.

ROHM, a leading provider of low ON-resistance MOSFETs for consumer and industrial devices, has now expanded its technological expertise to cater to the automotive industry. By leveraging advanced medium voltage processes, ROHM has developed MOSFETs tailored to meet the stringent reliability standards required for automotive applications, emphasizing low ON resistance as a key feature.

Available in voltage ratings of 40V, 60V, and 100V, the new MOSFET products feature a split-gate structure designed to achieve low ON-resistance levels, thereby enhancing operational efficiency in automotive systems. All variants have undergone rigorous testing and qualification under the AEC-Q101 automotive reliability standard, ensuring exceptional performance and reliability in demanding automotive environments.

Customers can choose from three different package options based on their specific application requirements. For compact systems like Advanced Driver Assistance Systems (ADAS), the DFN2020Y7LSAA (2.0mm x 2.0mm) and HSMT8AG (3.3mm x 3.3mm) packages offer space-saving solutions. Alternatively, the TO-252 (DPAK) package (6.6mm x 10.0mm) is available for automotive power applications. ROHM has also enhanced mounting reliability by incorporating wettable flank technology for the DFN2020Y7LSAA package and gull-wing leads for the TO-252 package.

Looking ahead, ROHM has ambitious plans to expand its range of medium-voltage N-channel MOSFETs to further enhance miniaturization and efficiency in automotive applications. The company is set to commence mass production of the DFN3333 (3.3mm x 3.3mm) and HPLF5060 (5.0mm x 6.0mm) packages in October 2024, with 80V products slated for release in 2025. Additionally, ROHM is working on the development of P-channel MOSFET products for future introduction.

These new MOSFETs find application in various automotive systems, including LED headlights, car infotainment displays, ADAS functionalities, and vehicle motors for operations such as doors, seat adjustments, and power windows. For more information on ROHM's innovative MOSFET solutions for automotive applications, visit www.rohm.com.