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  • TI Thinks Resolved

LM5122-Q1: Reference design circuit for Vin 100V~105V

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Replies: 6

Views: 111

Part Number: LM5122-Q1

Hi Team,

My customer is evaluating LM5122-Q1, their use case Vin is 100V~105V.

They are looking for application circuit to support Vin 100V~105V.

Do we have the related circuit for this requirement? Or do you have any suggestion?

  • Hi Ray,

    What is the output power level of the application? If the power level is low enough it would be possible to use a non-synchronous controller like the LM5155 or the LM5022 to achieve this operation.

    Thanks,

    Garrett
  • In reply to Garrett Roecker:

    Hi Garrett,

    The power level should be 30W~150W.
    If my customer's Vin is around 100~105V, do you have the suggestion circuit to overcome high input voltage for LM5122?
  • In reply to Ray Chang:

    Hi Ray,

    What is the output voltage?

    Thanks,

    Garrett
  • In reply to Garrett Roecker:

    This is serial product for DC/DC module, the output voltage should be 12V, 15V, 24V, 48V and 53V.
  • In reply to Garrett Roecker:

    If my customer's Vin is around 100~105V, do you have the suggestion circuit to overcome high input voltage for LM5122?
  • In reply to Ray Chang:

    Ray,

    You need to select a buck controller not a boost controller. The output voltage is always lower than the input voltage.

    Thanks,

    Garrett

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