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DRV8305驱动发烫问题

Other Parts Discussed in Thread: BOOSTXL-DRV8305EVM, DRV8305

自己照Demo板(BOOSTXL-DRV8305EVM)做的板子,用英飞凌的Mos管,DRV8305用默认的配置参数,但是DRV8305在低速的时候就会发烫大概在40摄氏度,温度比Demo板明显高很多,这是什么原因导致的?

 所用Mos管Datasheet