STMicroelectronics Advanced Motor Control Chips Automate Smaller, More-Efficient, Quieter Systems

The most accurate micro-motor driver chip, so that laboratory automation, industrial robots, 3D printers and other equipment, motor control more sophisticated.

High-functional integration increases motor control system reliability while meeting low-power requirements for energy efficiency

STMicroelectronics (ST), a leading global semiconductor supplier spanning multiple electronic applications, introduces the latest electronic innovations to make precision motor control for precision robots even more advanced.

Advanced laboratory automation systems featuring precision and space savings are helping medical centers cut clinical trial costs, reduce lab report turnaround time, and deliver high-quality healthcare to more patients, while industrial robots such as 3D printers have recently The year has seen a dramatic increase in accuracy and throughput. 3D printers print objects of complex shapes quickly and accurately, and at a fraction of the price, are suitable for use in the development of consumer and specialty products from prototyping to manufacturing.

STMicroelectronics' STSPIN820 ICs allow the next generation of stepper motor-based robots to operate smoother, quieter, smaller, more accurate and consume less power. With its high-speed input and precise microstep algorithm, this chip allows the motor rotor rotation of a small degree, the print head moves faster than 500mm / s, the sub-micron precision so that print speed is very fast, the printing surface is very Smooth and precise motion control, such as sample loading, encapsulation / unsealing, and access in next generation clinical automation systems. With this driver chip, other medical devices, such as a plate handling system, pumps, hematology analyzers and ventilators, can be quieter, more compact and more economical.

Just 4mm x 4mm in size, with built-in control algorithms for motor control and protection of fully functional power devices (rated 45V and 500mΩ RDS (ON)), the chip is the world's smallest all-in-one precision motor controller with automation Equipment manufacturers can place it directly on the control circuit board to complete the entire system design with very few additional components, so this motor driver chip saves board space, improve system reliability.

Domenico Arrigo, general manager of STMicroelectronics and power conversion products, said: The STSPIN820 helps innovators in precision automation continue to improve their products. In addition, precision, small size and low power consumption can help other device manufacturers simplify high-precision motors Control design, for example, textile machines, sewing machines, safety monitoring equipment, cash registers, office automation, home automation, point of sale equipment (POS). "

The STSPIN820 is now in volume production in a 4mm x 4mm QFN package.

The relevant STSPIN expansion board (X-NUCLEO-IHM14A1) will be on display at the STMicroelectronics booth at the SPS IPC Drives show in Nuremberg from November 28 to 30, 2017.

Editor's Note:

The STSPIN820 is a stepper motor drive with 256 microstep resolution. Operating voltages from 7V to 45V are easy to use for a wide range of application system designs. 1.5A maximum output RMS current, allowing designers the flexibility to meet a variety of power and torque requirements.

The STSPIN820 is a cost-effective motor control solution that incorporates ST's proprietary smart power technology and integrates motor control logic and low on-resistance in one package with a high-precision micro-stepping motor algorithm and protection features Complete power level. Equipped with common step clock and direction input pins, the communication between the motor control chip and the host processor or microcontroller is simplified.

In addition, the chip also has a dedicated standby pin, allowing the controller to enter a low-power mode, minimizing power consumption in energy-efficient applications.

Built-in over-current, over-temperature and short-circuit protection, the chip can withstand harsh industrial environments, further reducing circuit complexity, device count and material costs.

Author：Brittany Antonia （The author of article owns the copyright.）