TMS320F28335: anti-interference ability on the magnetic field

Walsh

Hi,

Our product is servo driver. We use a magnetic field source around TMS320F28335 and find a big mistake on the current sense.

How about the anti-interference ability of TMS320F28335 on the magnetic field?

Do you have some suggestion about layout or other?

Thanks,

Walsh

over 8 years ago

0 Cody Watkins over 8 years ago

TI__Mastermind 42195 points

Walsh,

In my experience I have not seen any issues with the F28335 in a magnetic field. Of course it could be affected if the magnetic field became strong enough.

Board layout could certainly affect performance in the feedback path. A few resources I was able to find can be found below.

Choosing the right sense resistor layout

There are many things that can go wrong when designing with a hot swap controller. For example, the hot swap can trip at an unexpected current value or a current monitor may report inaccurate measurements…

By Alex Triano over 11 years ago in Technical articles > Power management