DRV8353: About Integrated Current Shunt Amplifier.

Kengo.Y

Guru 10735 points

Part Number: DRV8353

Hi team.

I'd like to know detail about Integrated Current Shunt Amplifier.

According block diagram in data sheet, there is resistance(R6) before SOx pin.

What is it for?

I think it is effective for oscillation suppression when the capacitive load is attached.

Is my understand correct?

and, I think that a voltage drop will occur by this resistance(R6).

How should we design with consideration?

Sincerely.

Kengo.

over 5 years ago

0 Adam Sidelsky over 5 years ago

TI__Guru 63320 points

Kengo,

Let me check and get back to you.

Regards,

-Adam

0 Adam Sidelsky over 5 years ago in reply to Adam Sidelsky

TI__Guru 63320 points

Kengo,

That resistor is an error, it's not actually present in the design.

Sorry about this, I will get it corrected.

Regards,

-Adam

0 Kengo.Y over 5 years ago in reply to Adam Sidelsky

Guru 10735 points

Adam,

Thank you for your quick check and reply.
I understood about this.

I have a one more question.
I'd like to extend the SOx about 20cm max by wire.
Is there a recommendation for the output voltage and other advice?

Sincerely.
Kengo.

0 Adam Sidelsky over 5 years ago in reply to Kengo.Y

TI__Guru 63320 points

Kengo,

I would check that this works first before a major production of the board.

You might need a buffer or similar.

Regards,

-Adam

0 Kengo.Y over 5 years ago in reply to Adam Sidelsky

Guru 10735 points

Adam,

Thank you for your reply.

Do you have a plan on this check?

If you have schedule , please let me know.

Sincerely.

Kengo.

0 Adam Sidelsky over 5 years ago in reply to Kengo.Y

TI__Guru 63320 points

Kengo,

My meaning is that if you are using this on your board, you should check it.

Regards,

-Adam

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DRV8353: About Integrated Current Shunt Amplifier.