ROHM, a company specializing in electronic components, is contributing to the high functionality of next-generation industrial equipment and smart home appliances by launching a new 3-phase brushless motor driver IC that simultaneously eliminates heat generation and EMI.


ROHM announced on the 16th that it has newly released the 3-phase Brushless DC motor driver IC 'BD67871MWV-Z' for medium voltage (12–48V systems).

This product is characterized by the inclusion of proprietary driving logic and the active gate drive technology 'TriC3™', which simultaneously achieves reduced FET heat generation and suppression of EMI (electromagnetic interference).

ROHM developed TriC3™ technology, which enables high-speed voltage sensing and real-time gate control, to solve the technical challenges of 'power consumption suppression' and 'noise reduction' that conflicted in existing motor driver ICs.

This technology reduces heat generation by lowering the power consumption of FETs during switching, while simultaneously providing the effect of lowering EMI by suppressing ringing.

Actual test results show approximately 35% reduction in FET heat generation at equivalent EMI levels compared to ROHM's existing constant current drive products. Its reduction performance has been proven. This is expected to significantly contribute to improving motor efficiency and ensuring product reliability in industrial and consumer equipment.

The BD67871MWV-Z can be applied to a wide range of applications, including industrial power drills, fans, and screwdrivers, as well as vacuum cleaners, air purifiers, air conditioners, ventilators, and e-bikes. In particular, the adoption of the UQFN28 package and pin layout enhances compatibility with existing circuits and reduces development effort during new designs.

The new product entered mass production in September 2025, and the sample price is 800 yen (excluding tax). An evaluation board (BD67871MWV-EVK-003) is also provided, allowing developers to easily perform testing and design.