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Saleem
Saleem
Associate
January 26, 2017
Solved

L6472 Stepper Driver Layout Question

  • January 26, 2017
  • 1 reply
  • 834 views
Posted on January 26, 2017 at 16:29

I notice that the EVAL6472 is a 4 layer PCB.  Similarly, sparkfun has an evaluation board for the L6470 that is also a 4 layer PCB.  My question:  Is there some significance or layout best practice that requires a 4 layer PCB with the L6472 device?  Would you foresee any issues if I roll my own L6472 stepper driver board using a 2 layer PCB?

#stepper-driver #l6470 #l6472 #pcb-layout #stepper-motor
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Best answer by Enrico Poli
Posted on February 01, 2017 at 14:45

I don't know the motivations of Sparkfun team, but the EVAL6472H from ST had been developed using 4 layer PCB in order to obtain the maximum thermal performance.

The device can be also routed on two layer PCBs like, for example, in the

http://www.st.com/content/st_com/en/products/evaluation-tools/solution-evaluation-tools/motor-control-solution-eval-boards/eval6470h-disc.html

1 reply

Enrico Poli
Enrico PoliAnswer
ST Employee
February 1, 2017
Posted on February 01, 2017 at 14:45

I don't know the motivations of Sparkfun team, but the EVAL6472H from ST had been developed using 4 layer PCB in order to obtain the maximum thermal performance.

The device can be also routed on two layer PCBs like, for example, in the

http://www.st.com/content/st_com/en/products/evaluation-tools/solution-evaluation-tools/motor-control-solution-eval-boards/eval6470h-disc.html

Saleem
SaleemAuthor
Associate
February 1, 2017
Posted on February 01, 2017 at 19:52

Fantastic response!  Thank you!

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