News & Info
Trinamic Stepper Motor Driver
Trinamic, the industry leader in embedded motion control systems, unveiled the industry’s first energy-efficient stepper motor driver. The TMC262, first IC of a family of new stepper drivers, implements Trinamic’s coolStep™ technology, which intelligently manages the amount of drive current to the motor, so that the motor easily handles the load but does not consume extra power or generate excess heat.
Medical, biotech, and portable equipment benefit from reduced waste heat, better battery life
Features
- Reduce motor heat dissipation by up to 80%
- Minimise power consumption thus extending battery life
- CoolStep technology combines the ultimate precision and efficiency
- Integrated, high-resolution load measurement sensor.
The unique feature of coolStep technology is that no external sensor is necessary. In addition, the TMC262 can measure actual motor load, or torque. This information can be used by a microprocessor to detect potential or actual problems, such as a stuck mechanism.
The TMC262 further improves motor performance by building on technology proven in other Trinamic devices – microstep motor control. Each motor step is divided into 256 microsteps, for a total of 51,200 steps per revolution for a standard hybrid stepper motor. This smooths overall motion. An internal interpolator increases resolution even if the external control circuitry is only capable of supplying 16 times microstepping pulses.
“Even with its new efficiency capability, the TMC26x family has been designed to fit the architecture of existing motion control systems,” says Bernhard Dwersteg, head of R&D at Trinamic. “This technology will easily fit into existing applications.”
The TMC262 drives loads up to 6 amps and up to 60 volts, via external transistors. It comes in a compact 5 * 5mm² QFN package and can be driven by either a step/direction interface, or via SPI.
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