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TPS1641: TPS16413 go to protect status incorrectly

Part Number: TPS1641

I used TPS16413DRCR to make a current protect schematic,as below

the pcb design is as below

the tps16413 in the system is as below

 

I found a problem,when the led is blinking as the follow wave,with current 300mA

tps16413 will protect ,and cut off the 5v input

but when i set the led blinking as the follow wave,with current 300mA

tps16413 can work well.

If i set the current to 700mA,both the wave above can work well,without protect state.

I set IDLY time , Ilimit  ,Iocp to add more ,it is still in protect state.

Please help me , thanks very much