• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 674 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

for this application: BLDC v Brushed DC. If BLDC, does DRV8332 do the job?

Matthew Udomphol
Prodigy 20 points
Other Parts Discussed in Thread: DRV8332, BOOSTXL-DRV8301, DRV10983, DRV8307, DRV8308

Hi All,

I wanted to ask for your recommendation on using BLDC vs. Brushed DC motors; for our application I am worried about the complexity of driving brushless motors, but maybe the DRV8332 would address my concerns.

We have two motors that we would like to control; we're currently using the Maxon EC-Max 30 (40W) brushless motor.

The motors need to travel back-and-forth (1 cycle = about 2 seconds), and can be modeled as having 300g mass about 7cm away from the pivot point. The motors are gear reduced, and drive a belt that drive the arm.

Would the DRV8332 be a good selection for this application, if Brushless? Or would you recommend a brushed motor?

Thank you in advance for your time.

Matthew

  • 0
    TI__Mastermind 21320 points

    Hi Matthew,

    The trade offs between brushed and brushless motors is a rather long topic to get into here.

    It should be noted that the DRV8332 is just the motor driver, not the controller. Do you know how much current peak/rms the motor requires in your application? Also what is the voltage supply? These are the important parameters for the motor driver.

    We also have the BOOSTXL-DRV8301 that pairs with a C2000 motor controller for people looking to get into brushless motor control.

    www.ti.com/.../BOOSTXL-DRV8301

  • 0 in reply to Nicholas Oborny
    TI__Prodigy 575 points

    In addition Matthew have you looked at the DRV10983? No need to worry about the control of the motor because everything is taken care of on chip. The device works well under 24V and is capable of doing 2A RMS / 3A peak if that's what your application needs.

    Thanks - Zhao

  • 0 in reply to Zhao Tang
    Prodigy 20 points

    Hi Nick:

    • 12V motor: 2A RMS / 6A Peak. Although we are exploring to change to a 48V motor, which would be an estimated 0.5A RMS / 1.5A Peak.
    • Will forward that BOOSTXL-DRV8301 recommendation to our engineering team

    Hi Zhao:

    • Good recommendation. We will check out the DRV10983. Is there something that could handle the above power requirements, and for "sensored" use (i.e. with hall effect sensors)?

    Many thanks for your time!

    Matthew

  • 0 in reply to Matthew Udomphol
    TI__Mastermind 21320 points

    Hi Matthew,

    We don't have any completely integrated solutions for 48 V. Usually higher voltage motors are in high power applications.

    You can also look at the DRV8307 and DRV8308 for an integrated hall sensored solution.