在实际的汽车电子电路中，我们遇到一个问题，用efuse （VNF1048）去驱动电机，电机端会存在反向电动势，VNF1048驱动的外部的单NMOS无法做到防反功能，我们在实际电路上增加了一个NMOS，可以达到防反的目的（在efuse关闭外面NMOS时），想请教这样做有什么风险，在贵司规格书中未提及此种应用方案。 电路如如下：
Google translation:
In practical automotive electronic circuits, we encountered a problem: when using an efuse (VNF1048) to drive a motor, a reverse electromotive force (EMF) exists at the motor terminals. The external single NMOS driven by the VNF1048 cannot provide reverse protection. We added another NMOS to the actual circuit to achieve reverse protection (when the external NMOS is turned off by the efuse). We would like to inquire about the risks of doing this, as this application scheme is not mentioned in your company's specifications. The circuit is as follows.
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