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Hi I am trying to design a dual-polarity 5Vin to +/- 175Vout (60mA/channel) dc-dc converter, please help

mark wong1
Prodigy 40 points
Other Parts Discussed in Thread: LM5155

Hi I am trying to design a dual-polarity 5Vin to +/- 175Vout (60mA/channel) dc-dc converter, please help

  • 0
    Prodigy 40 points

    Been looking through the TI portfolio and considering a two-stage boost or a boost to 200V then step down. Any ideas? 

  • 0 in reply to mark wong1
    TI__Guru* 78060 points

    Hi Mark,

    Thank you for reaching out.  I would recommend a flyback topology with the LM5155, and you need two secondary windings one for the +175V the other -175V.  If you need a ref design, please approach a TI FAE or sales person in your region, and ask them to make a request to TI Design Service group to create one for you.

    Best Regards,

    Youhao Xi, Applications Engineering