DRV8353RS-EVM: DRV8353RS-EVM: No-load drive MOSFET chip and MOSFET hot

Hi,

We've got the issue and asked the help of our experts on E2E, please expect the response. Thanks.

May I ask if IDRIVE refers to The gate drive current

Please let me confirm with our expert and will get back to you asap.

Hi,

Yes that is correct - IDRIVE refers to gate drive current in these devices 

https://www.ti.com/lit/an/slva714d/slva714d.pdf (App note on 'smart gate drive' and IDRIVE) .

Hi,

Set the appropriate IDRIVE setting using this E2E FAQ: https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/796378/faq-selecting-the-best-idrive-setting-and-why-this-is-essential

If you are using the DRV8353RS-EVM, a good setting to use is 150mA/300mA. The GUI defaults to these IDRIVE settings to slew the onboard MOSFETs not too fast (100ns or slower). An 1100-mA IDRIVE setting is likely too large and causing the device to overheat.