ROHM Develops New Smart Switches Optimized for Zonal Controllers

Core Insights - ROHM Semiconductor has launched six new high-side smart switches (IPDs) that feature highly accurate current sensing and low ON resistances ranging from 9mΩ to 180mΩ, aimed at enhancing the reliability of automotive lighting and body control systems [1][4]. Product Features - The new smart switches are designed to protect loads from abnormalities such as overcurrent, overvoltage, and overtemperature, ensuring reliable operation and safeguarding sensitive components [1]. - These devices include comprehensive diagnostic functions like open load and reverse battery detection, which further enhance system safety and reliability [1]. - The BV1HBxxxEFJ series provides exceptional high-capacitance load driving capability, addressing the limitations of conventional smart switches in managing high-capacitance applications [3]. Technological Advancements - ROHM's proprietary process technology eliminates the trade-off between low ON resistance and high inductive energy clamping, achieving an optimal balance across drive capability, ON resistance, and energy tolerance [3][11]. - The current sensing precision of ±5% offers superior harness and fault protection, while the compact HTSOP-J8 package ensures excellent design versatility [4]. Market Contribution - By commercializing high-performance smart switches tailored to zonal controller requirements, ROHM is contributing to automotive electrification and the elimination of mechanical fuses [2]. - The company remains committed to advancing safety, security, and energy efficiency in the automotive sector through ongoing development of high reliability, high performance devices [4].