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.
