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DRV8256: DRV8256PRGER芯片发热

Part Number: DRV8256

各位TI的工程师:我有一产品使用DRV8256PRGER驱动直流有刷电机,供电电压为24V,测试发现,在未驱动电机的情况下,DRV8256PRGER芯片发热比较严重,但功能正常,请问这是何解?以下是电机驱动部分的原理图,盼复,万分感谢!