The World's Smallest Micro-motor Drive Released

- Nov 12, 2018-

The world's smallest micro-motor drive released

For the increasingly popular application of portable electronic technology in daily life, STMicroelectronics, a leading global semiconductor supplier across multiple electronic applications, has introduced a new series of low-power micro-motor drivers to make precision and advanced battery-powered devices smaller. More portability and longer battery life. Known as the world's smallest full-featured motor driver, this drive simplifies battery-powered portable electronics design, saves space, and delivers unprecedented levels of motor accuracy and smoothness.

The motor is the core component of portable medical syringe pumps and drives, personal fitness equipment, portable POS machines, mini robots, safety monitoring equipment, precision power tools, portable printers and other electronic equipment. Motor control requires a lot of practical research and development knowledge related to electronic engineering. . Integrating logic cells and power devices on a single chip, in line with design size and power budget requirements, is one of the biggest challenges for product designers.

Now STMicroelectronics' new line of micro-single-chip motor drives integrates all of these features to meet the most demanding technical requirements for portable and wearable devices. Low power consumption, small size, high performance, STMicroelectronics' new motor drivers will promote the widespread use of battery-powered IoT hardware.

STMicroelectronics' new product is only 3mm x 3mm, the world's smallest single-chip motor driver, and integrates all the features that product designers need to deliver compact, lightweight, and easy-to-use innovative products to the target market.

The new driver saves battery power, operates at only 1.8V, supports power-saving design, and has the lowest standby current in the industry, less than 80nA, meeting the zero-power state requirements when the motor is not operating. In addition, the driver provides 1.3Arms drive current, so it can be used in a variety of application designs, including robotic positioning systems, printer motors, camera autofocus mechanisms, toothbrush motors or syringe pumps.

Domenico Arrigo, General Manager of STMicroelectronics Industries and Power Conversion Products, said: "It turns out that our latest STSPIN single-chip drivers simplify the precision control design of new products and shorten the development cycle. Ultra-low power consumption helps extend battery-powered products. The battery life allows designers to add high value-added electric functions to portable and mobile products."

STMicroelectronics' low-power, low-voltage STSPIN new products are available now in volume, in a 3mm x 3mm QFN package.

technical details:

The current lineup includes the STSPIN220 stepper motor driver, the STSPIN2303 phase brushless motor (BLDC) driver and the STSPIN240 dual motor driver. The STSPIN240 monolithically integrates two complete MOSFET bridges to drive two brushed DC motors. In the third quarter of 2016, STMicroelectronics also plans to introduce a brushless DC motor single-drive product that will expand the output current to 2.6Arms. Each driver chip's power stage integrates energy-efficient MOSFET transistors to minimize power loss and heat dissipation. Although the size is small, it does not sacrifice any performance and functionality. The positioning resolution of the STSPIN220 stepper motor driver reaches 256 microsteps per step, making the motor run extremely smoothly and accurately positioned.

In addition, all drives incorporate comprehensive protection features including overcurrent protection, overtemperature protection and short circuit protection. These protection features ensure that the drive operates reliably and reliably, especially in harsh industrial environments, without the need for additional external protection devices, further reducing design cost and complexity.

Miniature micro motor driver

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