The TMC260-PA is an energy efficient high precision Micro Stepping Driver IC for bi-polar stepper motors with integrated power MOSFETs. The unique high resolution sensorless load detection stallGuard2? is used to for the worlds first integrated load dependent current control feature called coolStep?. The ability to read out the load and detect an overload makes this an optimum choice for drives where a high reliability is desired at a low cost. The new patented spread Cycle? PWM mixed decay chopper scheme ensures best zero crossing performance as well as high speed operation. The IC can be driven with Step & Direction signals as well as by serial SPI? interface. Using the microPlyer? allows to operate the motor with highest 256 μStep smoothness reducing the input frequency to 16 μSteps. A full set of protection and diagnostic features makes this device very rugged. It directly drives stepper motors with up to 2A.
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