SG3525 migration

Hello there,

I am designing a circuit to generate PWM signals for an Half-Bridge DC-DC converter MOSFET. In my previous versions, I designed with SG3524 but now I am trying to migrate to SG3525. I made my project to operate in open-loop configuration and the pulse width will be set by a potentiometer.

I attached my circuit in this post and I would like to know if the circuit is correct and also if you people could make some suggestions.

Thanks,
FBorges