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LM74502-Q1: reverse current function

Part Number: LM74502-Q1
Other Parts Discussed in Thread: LM74502, , LM74, LM74930, LM74930-Q1

hi expert

i have a question about the following words. 

does it mean LM7452 can allow current flow from output to input like the following shown?

How long this reverse current can last(Whether this situation will be limited to the chip/ whether do this situation can trigger any LM74502 protection function )?