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TPS22918: The relationship between the voltage that the TPS22918's VIN can withstand and the duration

HANBIN LI
Prodigy 20 points

Part Number: TPS22918

The following connection is connected between 12V and the chip's VIN, with the VIN voltage being around 8V. It can withstand being momentarily connected to 12V without damage (manual hot-plugging to 12V); however, it quickly breaks down when connected to 12V in a stable state
What energy is required for overvoltage breakdown inside a chip?