TMC389

TMC389 DATASHEET (V. 1.15 / 2015-OCT-27) 1 TMC389–DATASHEET Energy saving high resolution microstepping three phase stepper driver with step and direction interface and external power stage TRINAMIC® Motion Control GmbH & Co. KG Hamburg, GERMANY www.trinamic.com 1 Features The TMC389 is an energy efficient three phase stepper motor driver for high resolution microstepping applications. It integrates a low resonance three phase chopper for quiet motor operation. Its step and direction interface allows simple use. An SPI™ management interface allows for parameterization and diagnostics. The TMC389 directly drives 3 external N/P channel dual MOSFETs for motor currents up to 8A and up to 60V. Protection and diagnostic features further reduce system cost and increase reliability. Highlights  Up to 171 microsteps (256 sine wave steps) using step/direction interface or 20 Bit SPI™ interface  High precision sensorless motor load measurement stallGuard2  Energy efficiency and coolness by automatic load dependant motor current regulation coolStep™: Save up to 75% of energy!  Internal microstep extrapolation allows 256 wave step smoothness with low frequency step input  Dual edge step option allows half step frequency requirement, e.g. for opto-couplers  Up to 8A Motor current using external N&P channel MOSFET pairs  Synchronous rectification reduces transistor heating  9V to 60V operating voltage (peak)  3.3V or 5V interface  QFN32 package for extremely small solution with...