TMC389 Datasheet, PDF (1/48 Pages) TRINAMIC Motion Control GmbH & Co. KG. – three phase stepper motor driver

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 superior thermal performance
 EMV optimized current controlled gate drivers – up to 45mA gate current
 Overcurrent, short to GND and overtemperature protection and diagnostics integrated
Applications
 Precision three phase stepper motor drives
 Stage lighting
 Medical applications
 Optical applications
 Robotics
Motor type
 3 phase Stepper
Copyright © 2010 TRINAMIC Motion Control GmbH & Co. KG