DRV8329: nFault = 0 at startup

Tobias Schellenberger

Prodigy 70 points

Part Number: DRV8329

Tool/software:

Hello,

i have a problem to run our BLDC Motor with our own Demoboard.

The DRV8329 will go at start in the fault mode (nFault = 0V) an i dont see a problem.

after that post i will try to upload our schematic.

over 1 year ago

0 Tobias Schellenberger over 1 year ago

Prodigy 70 points

DRV8329 Demoboard V2.pdf

0 Akshay Rajeev Menon over 1 year ago in reply to Tobias Schellenberger

TI__Mastermind 23306 points

Hey Tobias,

Thank you for the question. I will aim to provide feedback before the end of the week.

Best,

Akshay

0 Akshay Rajeev Menon over 1 year ago in reply to Akshay Rajeev Menon

TI__Mastermind 23306 points

Hey Tobias,

Is the nfault staying latched low? or is it coming back up?

During power up and power down of the device through the nSLEEP pin, the nFAULT pin is held low as the internal regulators are not active. After the regulators have been active, the nFAULT pin is automatically released. The duration that the nFAULT pin is low does not exceed the tSLEEP or tWAKE time.

Best,
Akshay

Motor drivers

Motor drivers forum

DRV8329: nFault = 0 at startup