DRV8301 Maximum SH_X pin ramp rate (dV/dt)

masahiko shimizu

Other Parts Discussed in Thread: DRV8301

My customer is using DRV8301.
Is there rules of Maximum SH_X pin ramp rate (dV/dt)?
Does early slew rate destroy SH_x pin?

Best regards
Shimizu

over 9 years ago

0 Wilson Zuo over 9 years ago

TI__Mastermind 26065 points

Hi Shimizu,

We will check this and get back to you later.

Best regards,

0 Nicholas Oborny over 9 years ago

TI__Mastermind 21305 points

Hi Shimizu,

We do not have a rule on this. I will check with design.

I have seen systems using slew rates of 100 ns with no issues in the past.

0 masahiko shimizu over 9 years ago in reply to Nicholas Oborny

Guru 11235 points

Hi Wilson and Nick

Thank you for your support .

I wait your reply.

Thanks

Shimizu

0 Nicholas Oborny over 9 years ago in reply to masahiko shimizu

TI__Mastermind 21305 points

Hi Shimizu,

Design sees no issue with fast slew rates on SH_X pin.

0 masahiko shimizu over 9 years ago in reply to Nicholas Oborny

Guru 11235 points

Hi Nick

Thank you for your support.
I understood.

Thanks
Shimizu

0 masahiko shimizu over 9 years ago in reply to masahiko shimizu

Guru 11235 points

Hi Nick

I would like to confirm the following.

>I have seen systems using slew rates of 100 ns with no issues in the past.

　Does "slew rates of 100 ns" mean 100[V/ns], not rise/fall time?

Thanks
Shimizu

0 Nicholas Oborny over 9 years ago in reply to masahiko shimizu

TI__Mastermind 21305 points

Hi Shimizu,

This means rise and fall time.

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DRV8301 Maximum SH_X pin ramp rate (dV/dt)