DRV8353RS-EVM: Isolation interface

robin delafaite

Part Number: DRV8353RS

Hello,

I ask a question about smart drivers, do they need an isolation interface to isolate the logical part and the power part?

If not, can high-frequency oscillations on the gates of the mosfets be transmitted to the CPU through the driver?

No problem of noise?

Thanks,

Robin

over 5 years ago

0 Adam Sidelsky over 5 years ago

TI__Guru 61360 points

Robin,

The device is well isolated internally, we have no concerns of the power or output signals coupling back into the logic of the device.

This being said, please make sure to follow our layout guide to make sure your PCB is designed well: www.ti.com/.../slva959a.pdf

Regards,

-Adam

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

Prodigy 20 points

Adam,

thanks for these guidelines. I will use the drv8353 without isolation and pay attention to the pcb design.

Best regards,

Robin

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DRV8353RS-EVM: Isolation interface