TMC424 Datasheet – (V1.04 / 2015-JUL-01)

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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