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BQ76PL455A-Q1: bq76PL455A-Q1 lost always power on

Part Number: BQ76PL455A-Q1

Hi

In the process of testing the car, the customer found that BQ76PL455A-Q1's 5 V disappeared. The schematic diagram shows that the NPN withstand voltage of VP is only 80V, and we recommend 150V.customers want to know if 80V will have any fatal impact on the function. Why do you have to use the 150V'?