Hi John,
I was able to go ahead and look over everything now, so please find my feedback below:
Minjae Yu said: Q1. VDRAIN voltage is 48V, can I input 48V as VM power?
Yes, the input supply VM can range from 9V to 75V. You also have the option of…
I have already installed the file of Setup_DRV8350x-1.0.0_EVM.exe.But I still can not connect the DRV8350-EVM to the computer?
just like below.
In the device manager.there are no COM of MSP430 USB ?what's wrong ?What should I do?
Hey Cherry,
Thank you for your patience.
I believe the main issue here is that the drive current is set too high. This is causing the MOSFETS to switch very fast. I believe the Q GD for this MOSFET is 4.7 nC. So, the rise time would be Q GD /…
Part Number: DRV8350F Other Parts Discussed in Thread: DRV8353
Tool/software:
I am testing a new design. It is a near copy of the evaluation design for the DRV8353. Initial testing was throwing a Gate Driver Fault(no damage) on HA or HB depending…
Johnson,
This should be fine, I don't think the 200V per 1mm rule is correct. If you have any doubt, please check our EVM layout here: http://www.ti.com/tool/DRV8350S-EVM
Regards,
-Adam
Part Number: DRV8350H-EVM Other Parts Discussed in Thread: DRV8350 , MSP430F5529 , MSP430F5528 Tool/software: Code Composer Studio I Followed the DRV8350X_EVM User guide and installed the Setup_DRV8350x-1.0.0_EVM.exe and also installed the COM port driver…
Hi Yao,
I agree with your analysis that it seems like the driver is getting damaged resulting in an internal short. In the fast start state, what is your IDRIVE setting that you are using? What method of commutation are you using? (trapezoidal, sinusoidal…
Hi Ali, Have you checked your VDS overcurrent settings? What currents are you expecting from your motor in the application? Does the VDS voltage exceed your VDS overcurrent settings you have configured in SPI (0.75V?)
There may also be a current limitation…
Hey Hirata-san,
Phase1. When gate driver sinks the gate charge from the gate of the FET to turn off, "VGS monitor block" monitors the VGS voltage and tdrive duration terminates if the VGS becomes 2V. This mean this phase 1 duration can be shorter than…
Part Number: DRV8350R Tool/software: Hi,
I am using DRV8350RS in 1x mode, initially everything was fine. Motor was running when I feed PWM pulse. Suddenly, motor start running without feeding PWM. I checked the PWM pin of DRV, 3v3 is appearing when…
