DRV8308: DRV83008EVM

Ahalya Mandana

Part Number: DRV8308

Hi,

I'm also working with a Maxon motor and I have a problem with current. One of the suggestions was to change the Risense. So I would like to know how can I change the Risense resistor from the EVM?.

Thanks.

over 6 years ago

0 Adam Sidelsky over 6 years ago

TI__Guru 65410 points

Ahalya,

What issue are you having with the current?

Regards,

-Adam

0 Ahalya Mandana over 6 years ago in reply to Adam Sidelsky

Prodigy 100 points

Hi Adam,

We are trying to understand how we can set the RIsense resistor according to the requirements of the motor we are using.

Thanks,

0 Adam Sidelsky over 6 years ago in reply to Ahalya Mandana

TI__Guru 65410 points

Please check the User's Guide here: www.ti.com/.../slvua41f.pdf

0 Ahalya Mandana over 6 years ago in reply to Adam Sidelsky

Prodigy 100 points

In the user's guide there is no information about changing RIsense, so that is why we are a little confused.

0 Adam Sidelsky over 6 years ago in reply to Ahalya Mandana

TI__Guru 65410 points

Ahalya,

What current range do you intend to use?

The EVM is designed for up to 5A of peak current.

Regards,

-Adam

0 Ahalya Mandana over 6 years ago in reply to Adam Sidelsky

Prodigy 100 points

The nominal current of our Maxon motor is 2.33A and stall current is 23.3A.

Is it advised to change the current sense resistor value on the board?

0 Adam Sidelsky over 6 years ago in reply to Ahalya Mandana

TI__Guru 65410 points

No need to change it.

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DRV8308: DRV83008EVM