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drv8301 phase B switching problem

Murat_
Prodigy 150 points
Other Parts Discussed in Thread: DRV8301

Hello,

We have a problem with DRV8301. Phase A and Phase C work properly but Phase B doen not switch. The fault pin stays high during this situation. What can be the reason of the fault?

  • 0
    TI__Mastermind 21305 points

    Hi Murat,

    Some common things to first check.

    Can you verify that the issue happens on more than one board? This will help to rule out a soldering/manafacturing defect.

    Are you driving a motor? If so, can you try another motor?\

    Can you provide a schematic/layout for the DRV8301? Is there any difference between the half-bridges.