TMC424 Datasheet – (V1.04 / 2015-JUL-01) 4/21
Copyright © 2011 TRINAMIC Motion Control GmbH & Co. KG
List of Figures
Figure 1: Pinout TMC424 ..................................................................................................................................................... 5
Figure 2: Block diagram of the TMC424 .......................................................................................................................... 8
Figure 3: Application Environment................................................................................................................................... 9
Figure 4: Example for Application with SPI controlled TMC26x Stepper Motor Driver ................................... 10
Figure 5: Example for Application with Step/Direction Power Stage .................................................................. 10
Figure 6: TMC424 Application .......................................................................................................................................... 11
Figure 7: Timing diagram of the Serial Interface ...................................................................................................... 12
Figure 8: Structure 32-Bit Interface ................................................................................................................................ 13
Figure 9: Overview TMC424 Registers ........................................................................................................................... 13
Figure 10: Encoder Output and Evaluation .................................................................................................................. 14
Figure 11: Crosstalk on Encoder Wire ........................................................................................................................... 14
Figure 12: Step Direction conversion ............................................................................................................................ 18
Figure 13: 100-Pin TQFP Top View ................................................................................................................................. 19
Figure 14: 100-Pin TQFP Side View ................................................................................................................................ 19
Figure 15: 100-Pin TQFP Side View Detail A................................................................................................................ 19
List of Tables
Table 1: TMC424 Pinout ....................................................................................................................................................... 6
Table 2: Operating Conditions ........................................................................................................................................... 7
Table 3: Operating Conditions ........................................................................................................................................... 7
Table 4: Prescaler factors for different motors and encoders ................................................................................ 11
Table 5: Interrupt Flags ..................................................................................................................................................... 13
Table 6: SPI Datagram Prescaler ..................................................................................................................................... 16
Table 7: SPI Datagram Hold Register ............................................................................................................................ 16
Table 8: SPI Datagram Step-/Dir logic ........................................................................................................................... 17
Table 9: SPI Datagram Control Register ....................................................................................................................... 17
Table 10: N-Channel Read Back Register ...................................................................................................................... 17
Table 11: SPI Datagram Step / Direction Converter .................................................................................................. 18
Table 12: Datagram example and RAM contents for three step-direction drivers ............................................ 18
Table 13: TQFP Dimensions .............................................................................................................................................. 20
