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DRV8842EVM: EVM output abnormal if there is loading...

Peter Tseng
Mastermind 6210 points
Part Number: DRV8842EVM

Tool/software:

Hi Team,

Customer test DRV8842EVM and the VM input is 32V and the I0~I4 is all "1" to set full scale current output.

However, if no loading, the output waveform is no problem.

 

While loading attached, the output waveform became abnormal.

 

Is there any debug direction for me to check?

Thanks.