Solutions for Driving PMSM and BLDC Motors

To provide the highest level of design flexibility, STMicroelectronics' product portfolio includes specific products for low-voltage motor control applications like monolithic driver ICs, power MOSFETs, IGBTs, gate drivers, power modules, and dedicated microcontrollers to address a broad range of applications. STMicroelectronics has boards and reference designs for low voltage motors such as <100 V up to high voltage motors 600 V up to 1200 V to kickstart application designs, and better reliability.

Low voltage – 1.8 V up to 75 V

ST’s STSPIN drivers for 3-phase brushless DC (BLDC) motors include power drivers in a 3-phase bridge configuration and integrated solutions with built-in decoding logic for Hall effect sensors. They also feature a PWM current controller to autonomously drive a BLDC motor through motion commands coming from the motor or motion control system host – a microcontroller, DSP, or FPGA. In addition to the integration of the power MOSFET and the associated driving circuitry, they include protection and diagnostic features for overtemperature, overcurrent, and undervoltage conditions, resulting in robust and reliable designs. Available in a wide selection of space-saving, thermally-enhanced packages, STSPIN 3-phase BLDC motor driver ICs provide a ready-to-use and optimized solution for motor and motion control systems in a wide range of voltage and current ratings and they are part of ST’s 10 year and 15 year longevity programs.

Medium voltage – up to 250 V

The STSPIN32F025x system-in-package is an extremely integrated solution for driving three-phase applications, helping designers to reduce PCB area and overall bill-of-material. It embeds an STM32F031x6x7 featuring an Arm® 32-bit Cortex®-M0 CPU and a 250 V triple half-bridge gate driver, able to drive N-channel power MOSFETs or IGBTs. The integrated MCU allows performing FOC, 6-step sensorless and other advanced driving algorithms including the speed control loop.

High voltage – 600 V up to 1200 V

The STSPIN32F060x system-in-package is an extremely integrated solution for driving three-phase applications, helping designers to reduce PCB area and overall bill-of-material. It embeds an STM32F031x6x7 featuring an Arm 32-bit Cortex-M0 CPU and a 600 V triple half-bridge gate driver, able to drive N-channel power MOSFETs or IGBTs. The integrated MCU allows performing FOC, 6-step sensorless and other advanced driving algorithms including the speed control loop.

The STPOWER portfolio of highly integrated, high-efficiency power modules for flexible, compact, and robust solutions from tens of watts to several kilowatts helps to reduce design time and efforts. It covers a wide range of voltage classes, current ratings, and topologies so that virtually any conceivable application can benefit from the outstanding performance, efficiency, and longevity these devices offer.