TMC389-LA

TMC389

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Datasheet

TMC389_datasheet.pdf 
(1.39MB 17-Oct-13)

 

Product Details

Description

 

The TMC389 is the first energy efficient high current high precision microstepping driver IC for 3-phase bipolar stepper motors. Using low resonance 3-phase stepper motors the smoothness at low speed can be increased significantly compared to a 2-phase stepper motor solution. The unique high resolution sensorless load detection stallGuard2™ is used to for the world’s first integrated load dependent current control feature coolStep™. The ability to read out the load and detect an overload makes the TMC389 an optimum choice for drives where a high reliability is desired at a low cost. The new for 3-phase motors adapted spreadCycle 3 PWM automatic mixed decay chopper scheme ensures highest smoothness and best zero crossing performance. The TMC389 can be driven with Step & Direction signals as well as by serial SPI™ interface. Using the microPlyer x16 allows to operate the motor with highest ?Step smoothness reducing the input frequency divided by 16. A full set of protection and diagnostic features makes this device very rugged. It directly drives external MOSFETs for currents of up to 6A. This way it reaches highest energy efficiency and allows driving of a high motor current without cooling measures even at high environment temperatures.

 

TMC389-LA

Interfaces: SPI, Step / Direction
No. Axes: 1
Product State: active
Microstep Resolution: 1...171V(1)
Supported Motor Type: 3Phase Stepper
coolStep™
stallGuard2™
Logic Supply: 3.3...5V
Motor Supply: 9...60V
Package: QFN32 (5x5)

 TMC389-EVAL

Downloads

 

 

Application Notes

 FileSizeModified
Appnote_spreadCycle.pdf 606.02kB 17-Oct-13
Appnote_stallGuard2.pdf 434.42kB 17-Oct-13
CW_CCW_to_StepDir_Converter.pdf 6.12kB 17-Oct-13
 

Datasheet

 FileSizeModified
TMC389_datasheet.pdf 1.39MB 17-Oct-13
 

Documentation

 FileSizeModified
TMC389_ShortSpec.pdf 464.8kB 17-Oct-13
TMC389_datasheet.pdf 1.39MB 17-Oct-13
 

Tools

 FileSizeModified
TMC389_CONFIG.exe 1.08MB 17-Oct-13