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LM51551-Q1: Do we suggest to add the resistor at BIAS_PIN?

Part Number: LM51551-Q1

Hi Expert,

My customer is using LM51551-Q1 as the flyback controller. They want to know if we suggest to put the resistor at BIAS pin to limit the current. Since they have put the 10 ohm in old project, and they want to know the necessity of this.  

Do you have any suggestion on this?

Thank you,