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LM5023: Suggest me Suitable Dsnub device in the attched webench schematic

MUHAMMED RAFI
Intellectual 265 points
Part Number: LM5023

Dear TI Expert,

I used LM5023 IC for my SMPS  of 15Volt,2.5A Output . I got the required LM5023 IC based schematic design from webench TI Tool.But the diode Dsnub in the obatined webench design is a custom device. please suggest me suitable devices for this Dsnub requirements, because there is no much other details like reverse recovery time, maximum surge current are not mentioned in the obtained design.please find the attachment of the webench design below for your reference.

Thank you

Best Regards,

Muhammed Rafi C K

WBDesign38 (1).pdf

  • 0
    TI__Expert 3431 points

    Hi, Muhammed Sir:

    Thanks for your interests. Since the voltage is over 1000V. you could use 2 US1K in series like the link as below.  R7/R8 and R12/R14 are used to balance the voltage of  D1 and D2 when they are off.  

    PMP5725

    By the way, if you do not mind, may I know what's product of this power? just curios about why it needs 484Vac input...

    Regards, 

    Wesley