TPS2116: Inquiry about Divider Resistor Necessity in TPS2116 for Primary MODE

Part Number: TPS2116

Tool/software:

I am currently considering a circuit using the TPS2116.

This time, I want to operate it in Primary MODE.

Is there a problem with connecting PR1 directly to VIN1 in this case?

As long as VPR1 > VREF (=1V), I don't think a resistor divider is particularly necessary.

Is this understanding incorrect? I am assuming 5V input for both VIN1 and VIN2.

Thank you for your assistance.

Best regards,