in our design, LM5064 is used to monitor the board power up, after power up, the SMBA_n(pin14 of LM5064) is always low, check the status register, found OC fault have been trigged(0x04 is the value of register 0x7C, 0x0888 is the value of 0xE1);
test the waveform with oscilloscope to monitor Gate, SMBA, Timer pin and current, found status of SMBA was changed to low at PORit of LM5064, and hold the low status after it, the current don't over the design OC value 33.3A;
