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DRV8308EVM: Why strong pullup (R5, 390E) for FGOUT in DRV8308EVM board?

Sivakumar M S
Prodigy 50 points
Part Number: DRV8308EVM
Other Parts Discussed in Thread: DRV8308

Hi,

Why strong pullup resistor (R5, 390E) used for FGOUT signal in DRV8308EVM board? I went through the datasheet of DRV8308 and it never recommended any strong up resistor for FGOUT? 

Siva

  • 0
    TI__Guru 65290 points

    Siva,

    Thanks for posting on the MD forum!

    Reviewing the datasheet and user's guide, my estimation is that this FGOUT signal is expected to be used externally through monitoring on a scope or connection to external circuitry and therefore the EVM designer (it was designed before I joined the team) specified a stronger pull-up for FGOUT.

    Regards,

    -Adam