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DRV8424: Interface between Field Oriented Control and DRV8424

Conor
Guru 12065 points
Part Number: DRV8424

Tool/software:

Hi,

We are considering the possibility of connecting Field Oriented Control and DRV8424.

We plan to use the following products for Field Oriented Control.

https://www.analog.com/media/en/technical-documentation/data-sheets/TMC4671.pdf

As far as I can see from the DataSheet, it seems possible to connect as long as you pay attention to the current limit of the DRV8424P

I would like some advice on concerns when connecting Field Oriented Control and DRV8424. We are considering connecting with the following configuration.

Thanks,

Conor

  • +1
    TI__Mastermind 44425 points

    Hi Conor,

    We're not familiar with the 3rd party device. But looking at your block diagram with external current sensing the DRV8424P maybe a feasible solution. The DRV8424P has integrated current regulation using VREFA and VREFB inputs. It should be set to its maximum 3.3 V and current must not exceed 2.5 A else internal regulation will kick-in and affect operation. 

    You could try the setup using an VRV8424PEVM, https://www.ti.com/tool/DRV8424PEVM.

    Regards, Murugavel