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DRV8873: DRV8873SPWP上电发热严重。

Part Number: DRV8873
Other Parts Discussed in Thread: DRV8412

1.接VM接12v时芯片不怎么发热,接负载电机也正常。DVDD内部的电压5V正常;
2.当VM接到24V时电机驱动芯片发热严重很烫,电机内部的DVDD的电压4V,感觉是内部的LDO消耗了大量功率导致芯片发热异常。

3.问题是我需要用到24V的输出给到电机,请问要怎么改善