UCC28180: can pin4 FREQ be used as CLK sync?

Part Number: UCC28180

Hi 

UCC28180 frequency accuracy is not met customer's requirement, customer want to know if pin4 FREQ can be used as CLK sync?

if yes, customer can get a high frequency accuracy.

now, customer use 17.8k resisitor, they designed several power modules, most frequency is around 115kHz, but 1 power module frequency is 130kHz.

I check datasheet, this frequency is not very high accuracy.

thanks.