DRV8334: phase comparators latching?

Keith Keller

Expert 7230 points

Part Number: DRV8334

Tool/software:

Hello,

Could you please confirm whether the phase comparator is a latching fault when set to fault mode in firmware?

Thank you, Keith

3 months ago

0 Yara Al Shami 3 months ago

TI__Genius 15335 points

Hi Keith,

Just want to confirm you mean if this bit is set to 1 you're asking whether it will be a latching fault or not correct?

I don't see anywhere in the datasheet that would indicate that this is a latching fault considering all the faults that are latching explicitly say so, regardless I'll check with systems.

Regards,

Yara

0 Keith Keller 3 months ago in reply to Yara Al Shami

TI__Expert 7230 points

Yes that is correct. Thank you!

0 Yara Al Shami 3 months ago in reply to Keith Keller

TI__Genius 15335 points

Hi Keith,

Apologies for the delay.

If the phase comparator fault is triggered then the following bits would report the fault

Although this wouldn't shutdown the gate driver, this fault would have to still be cleared using the CLR_FLT bit.

Regards,

Yara

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DRV8334: phase comparators latching?