DRV8306: 1

Hi Arturo,

Thank you for your question! The DRV8306 was specifically designed to drive MOSFETs and therefore applies a VGS voltage of around 10V. GaN FETs typically require a lower VGS voltage such as 6V, so the DRV8306 is not suited for driving GaN FETs. 

Regards,

Anthony Lodi

Is there a specific integrated chip, with the same functionality, that you recommend for applications using GanFet's? Or do you have a specific combination of BLDC motor controller and drivers that you recommend? I have been using a UCC2626DW and LM5113 pair to run a BLDC Hall Sensor Motor. Getting a consistent reliable performance from this pair has proven difficult. Typically, the LM5113 chip would instantly burn on startup or perform as intended for 15 seconds then burn out. The GanFets were configured in a Half bridge configuration so the GanFet's would burn along with the driver.

Hi Arturo,

What is the bus voltage used? GaN is typically used in applications with high bus voltages such as 220V.

Regards,

Anthony 

I am attempting to use a bus voltage of 38 volts. thank you for your reply!

Hi Arturo,

Thanks for the details! Out of curiosity given that the voltage level is so low, what is the reason behind using GaN FETs instead of MOSFETs?

Regards,

Anthony Lodi