STMicroelectronics EVALSP820-XS motor-driver board for 3D printing
STMicroelectronics’ EVALSP820-XS motor-driver board brings ST’s industrial-control expertise to the RAMPS (RepRap Arduino Mega Pololu Shield) open-source 3D-printer platform, enabling 3D printer makers to unleash the potential of their machines for faster printing and smoother surface finish.
The RAMPS modular platform is making fused filament fabrication (FFF) 3D printing accessible to makers, small businesses and home users, for fast prototyping, making replacement parts or education. The Arduino Mega 2560, or Arduino DUE, baseboard provides basic control, ready for users to plug in their own choice of motor driver, extruder controller and any other desired functions using Mega-compatible expansion shields.
As a plug-and-play expansion board, the EVALSP820-XS can drive RAMPS printers at a high speed for increased throughput, ensuring good smoothness with microstepping resolution from ½-step to 1/256-step per microstep. Key to this increase in printing performance is ST’s STSPIN820 stepper-driver IC.
The IC embeds high-speed motor-control input circuitry and algorithms developed for industrial applications. It also integrates a powerful 1.5 Arms output stage in the compact 4 x 4 mm QFN package. Industrial ruggedness is assured with comprehensive built-in protection including undervoltage lockout, overcurrent/short-circuit protection and thermal shutdown.
The board can be used in other projects to accelerate development of smooth, high-speed stepper control for equipment such as surveillance-camera platforms, textile-manufacturing or sewing machines, medical devices, cash-handling machines, office and home automation, point-of-sale terminals and robotics. With its 7–45 V operating-voltage range and simple host interface comprising step-clock and direction-input pins, the expansion board is versatile and easy to integrate.
For more information: www.st.com/evalsp820.
Phone: 02 8338 1172
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