LM5018ISOEVAL: About max duty cycle

Part Number:LM5018ISOEVAL

Hi,

Customer is considering the LM5018ISOEVAL circuit configuration.
Customer requirement specification is ;

Vin=8.2V
Vout1=8V / Iout1=200mA(max)
Vout2=xx /  Iout2=xx

1．Please tell me the minimum value of the voltage difference between the VIN and SW pins.
　  Customers want to know the MAX duty of this EVM.
　  ※UVLO initial setting is scheduled to be changed.

2.  Please tell me how to calculate the drop voltage 0.5V of Vout2.



Best Regards,
Yusuke