This bipolar stepper motor system implements an MSP430, a DRV8818, and a NEMA 23 motor. It's suitable for applications requiring up to 140 oz-in of torque, and up to 800 RPM. Motor voltage support is 8V to 35V, and max current is 2.5A. A multitude of configuration options allow fine tuning of the current waveform, including the regulated current level, the microstepping applied, H-bridge FET states during current decay, the time interval of current decay, and current deglitch time. The motor drive stage has integrated protection from short-circuit, shoot-through, under-voltage, and over-temperature.
Features
Highly configurable current waveform allows maximum tunability
Integrated power FETs support 8V to 35V and 2.5A
Motor speed is easily controlled by the STEP frequency
Hardware state machine modulates current with up to 1/8 microstepping for a smooth motion profile
Integrated protection for short-circuit, shoot-through, under-voltage, and over-temperature
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a (free download.).
The UL Reader is a subset of the Ultra Librarian toolset that can generate, import, and export components and their attributes in virtually any EDA CAD/CAE format.
