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DRV8329-Q1: 3 shunt usecase

Chuqiang Wen
Expert 5815 points
Part Number: DRV8329-Q1

Tool/software:

Hi Expert, 

Customer would like to use 3-phase current sense on DRV8329-Q1 to achieve better FOC control. Since typical usecase of DRV8329-Q1 is single phase current sense. 

Q1: I would like to check with you any risks or tips we need to take into consideration for using 3-phase current sense on DRV8329-Q1? 

Q2: What is the recommendation for the LSS pin connection? Is below connection correct? From my understanding, this configuration will introduce shunt voltage to the VDS overcurrent detection which we will need to consider. Any other tips? 

Thanks!

Ethan Wen