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MSP430 - DRV8701 Connections

mustafa güler
Prodigy 40 points
Other Parts Discussed in Thread: TIDA-00620, MSP430G2553, DRV8701

Hello, I am designing a motor driver according to 12- to 24-V, 27-A Brushed DC Motor Reference Design od TI. I want to learn why these 0 ohm resistors are used and what will happen if I delete them and put wires instead of them. You can the reference design via the link: www.ti.com/.../TIDA-00620 Documents

Thank you for your information.

  • 0
    TI__Guru**** 205137 points

    Hello,

    These are just simple jumper connections between the DRV8701 and MSP430G2553, you can use wires or a solder bridge instead of 0 ohm resistors if preferred.  Moving this thread to the Motor Drivers Forum since their experts know more about the TIDA-00620.

    Regards,
    Ryan

  • 0 in reply to Ryan Brown1
    TI__Expert 4435 points

    Hello user 4820571,

    Ryan is correct. You can remove the 0 Ohm resistor on your design if you wish. On the TIDA-00620 design, those resistors were placed for commodity. One can easily access those resistors and read signal from/to the DRV8701. Also, in some cases, is easy to remove those resistors, isolate that MSP430, and use another microcontroller to control the driver. I hope this helps understand it better. Thank you. 

  • 0 in reply to Luis Riveros
    Prodigy 40 points

    Thank you very much Luis. Your and Ryan's information is really helpful.