Energy saving high resolution microstepping three phase stepper driver with step and direction interface and external power stage

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Unit Price:$12.78
Minumum Qty: 1
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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 6A and up to 60V. Protection and diagnostic features further reduce system cost and increase reliability.


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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 superior thermal performance
EMV optimized current controlled gate drivers up to 45mA gate current
Overcurrent, short to GND and overtemperature protection and diagnostics integrated


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Trinamic Application Note
Trinamic Application Note
Trinamic Application Note