ST and Würth develop power tool reference design
Demo includes all the necessary user interfaces required to control the motor’s trigger, speed, and direction
Würth Elektronik and STMicroelectronics have jointly developed a demo design for handheld power-tool applications. The demo, which efficiently drives a low-voltage brushless DC motor, includes all the necessary user interfaces required to control the motor’s trigger, speed, and direction.
The demo is based on the STDES-PTOOL3A reference design, in which the Gerber files, bill of materials, schematics and all other reference materials are downloadable without charge. It showcases the capabilities of ST’s STM32G4 MCU and STDRIVE101 gate driver in powering six STL220N6F7 MOSFETs that all comply with Würth Elektronik’s ferrite bead (WE-CBF SMT EMI suppression ferrite bead 74279271) and power inductor (WE-LHMI SMT Power Inductor 74437368330) and the benefits they bring to each application in performance, cost, quality, and ease of implementation.
The software code embedded in the STM32G4 was developed using the STM32 Motor Control software development kit (X-CUBE-MCSDK). The design shows real-world usage scenarios in battery-operated handheld power tools.
Over the past few years, STMicroelectronics and Würth Elektronik have established a strong collaboration developing a number of reference designs combining active components from ST with passive components from Würth Elektronik.
”Working with Würth Elektronik, ST has shown its capability to work with partners to extract the best performance from its product offer and to jointly develop system solutions addressing the most challenging and complex application needs,” said Ricardo De Sa Earp, executive VP, General-Purpose Microcontroller Sub-Group, STMicroelectronics.
“The development of a cost-effective, high-quality reference design that forms the basis for outstanding power tools is another example of the fruitful collaboration we share with STMicroelectronics,” said Alexander Gerfer, CTO, Würth Elektronik eiSos Group.
