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LM5155: LM5155 : HV input reference design

Rock Shao
Expert 2985 points
Part Number: LM5155

Tool/software:

Hi E2E,

My customer has a new project to study as the following.

Product specifications: Input voltage range: 4.5~18, 9~36, 18~75 VDC

Therefore, the use of LM5155x requires emitter follower lines, and the size of the new product cannot bear these lines at the same time (0201 parts have been used)

If you have any suggested routes, please provide them for reference.

thanks and regards.

  • 0
    TI__Genius 13075 points

    Hi Rock,

    thanks for reaching out.

    When the input voltage exceeds the abs. max rating, we normally recommend a circuit like shown below:

    I do not have a smaller solution in mind.

    Best regards

    Moritz