LM5575: AN-1571 Quick Start Guide

Part Number:LM5575

Dear, Sir.

My customer has been started the design of LM5575 referring AN-1575

Quick Start Guide.

The document defines as Rfb1(10) & Rfb2(9).

The other side, Formula 9 is defined Rfb1(9).

Which is correct for Formula 9,  Rfb1(10) or Rfb2(9)?

Best Regards,

H. Sakai