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DRV3901-Q1: what are the consequences of leaving the VDD pin disconnected while in standby?

Lenio Cacula
Genius 16670 points
Part Number: DRV3901-Q1

Tool/software:

What are the consequences of leaving the VDD pin disconnected while in standby? The customer found out that the quiescent current is reduced from 2mA to 0.6mA by doing that. Can we explain? What are the functions that are lost by not having VDD connected in both standby and regular operation?

Thank you!

  • +1
    TI__Genius 11161 points

    Hi Lenio,

    Thanks for your question.

    Removing VDD will have an impact on SPI communication. SDO will be in accessible as it is doing to show the VDD_ERR.

    However we can still do off state diagnostics and deployment.

    Let me know if this clarifies.

    Thanks,

    Ibinu