Hi ，everyone，I use this chip to build three-phase bridge circuit, shared 6; LMG3422R030-Q1, through the dedicated DSP microprocessor output PWM signal, so as to control its switch, the output is connected to the three-phase motor U,V,W, the output interface and the motor are connected in series with 3 safety tubes, the safety tube is selected in the normal test is 5A specification, normal operation. When verifying the function of the fuse, replace the fuse with 2A to see if it can play a protective role. At this time, the fuse is burned down, half of the three-phase bridge is burned down -- a pair of upper and lower Bridges are burned down, and a bridge is burned down, a total of 3 pieces of LMG3422R030-Q1 are burned down. Check the burning situation and the LDO5V pin has no output. Why does the protection mechanism of the chip itself not work, the design schematic is attached, please answer
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