Highly energy-efficient single-chip three-phase three-channel current sensing BLDC driver, do you know?

What is an energy-efficient monolithic three-phase three-way current-sensing BLDC driver? What does it do? China, May 2, 2018 - STMicroelectronics launches the industry’s first low-voltage device suitable for both single- and three-resistor sampling Brushless motor driver STSPIN233. The motor driver is tiny and compact, integrating a 200mΩ 1.3Arms power stage in a 3mm x 3mm package.

Not only that, the standby current of STSPIN233 also sets a record for the lowest power consumption in the industry, reaching less than 80nA. In addition, it can enter standby mode through logic control, making it ideal for extending the battery life of portable devices and IoT products. Its scope of application includes drone camera gimbals, teaching robots, electric toothbrushes, electric shavers, Medical syringe pumps or small drives built into Internet of Things (IoT) devices, etc.

The power supply design of STSPIN233 is very simple. It has an input voltage range of 1.8V-10V and can be easily driven even with only one lithium-ion battery. Built-in safety features include over-current, short-circuit and over-temperature protection, under-voltage lockout protection and interlocking, helping to further simplify system design.

There is also a development ecosystem launched simultaneously with STSPIN233, which consists of a Nucleo expansion board (X-NUCLEO-IHM17M1) and related software tools (X-CUBE-SPN17 that supports STM32Cube), which can provide simple and easy-to-use development tools, middleware The STM32Cube software environment consists of software and application code examples, allowing developers to quickly start functional evaluation and prototype development.

With the introduction of the STSPIN233, STMicroelectronics now has a complete line of tiny monolithic low-voltage drivers suitable for controlling stepper, brush or brushless motors in small battery-powered devices. The full range of products includes STSPIN220, STSPIN230, STSPIN233, STSPIN240 and STSPIN250. Each product is equipped with a dedicated Nucleo evaluation board and X-CUBE software package, providing customers with flexible product choices, including single and double brushed motors or large Current (2.6Arms) brushed motor controllers, sensored or sensorless BLDC controllers, etc. The above is the analysis of the high-energy-efficiency single-chip three-phase three-channel current detection BLDC driver. I hope it can be helpful to everyone.