DRV8825: Heating up of the driver when motor is not connected

Rushal Patil

Part Number: DRV8825

I have designed a 2 axis stepper motor driver board using DRV8825 Modules. So the issue that I am facing is that one of the motor is heating up as soon as the power(12V) suppy is connected and it keeps drawing around 1A of constant current. The motor also doesnt work while the other driver on the same board is working absolutely fine and doesnt heat up.

over 5 years ago

0 Rushal Patil over 5 years ago

Prodigy 20 points

output.pdf

0 Pablo Armet over 5 years ago in reply to Rushal Patil

TI__Mastermind 37683 points

Hello Rushal,

Thank you for attaching the schematic.

I will need some time to review the schematic and figure out what could be causing the high current. You should expect a reply from me by 11/15 (United States time).

0 Pablo Armet over 5 years ago in reply to Pablo Armet

TI__Mastermind 37683 points

Hello Rushal,

I have a couple questions:

What do you have the I_chop current set to?
Are you seeing this issue in more than one board?
Is the driver getting hot when motor is not connected?
- If yes, what was the temperature of the IC?
Can you send me your board layout? (can send to me via private message if you don't want to share publicly)

0 Pablo Armet over 5 years ago in reply to Pablo Armet

TI__Mastermind 37683 points

Hello Rushal,

Any updates?

0 Pablo Armet over 5 years ago in reply to Pablo Armet

TI__Mastermind 37683 points

Hello Rushal,

I have not heard back from you. I will assume your issue has been resolved.

I will close this thread but you can still reply if you still need assistance. If the thread is locked, clicked on "Ask a related question" to post a question.

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DRV8825: Heating up of the driver when motor is not connected