This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM51501-Q1: LM51501-Q1

Part Number: LM51501-Q1

I have the following question regarding the LM51501 DC/DC Controller:


On page 11 of the datasheet, the following is stated:


“The wide input range of the
device covers automotive load dump transient.”


From ISO 16750-2:2010(E), a load dump may reach from 151V / 1 ohm to 202V / 8 ohm in a 24 V system or 79V / .5 ohm to 101 / 4 ohm in a 12V system.


Can the LM51501 survive these levels?

  • Hi Raymond,

    LM51501 cannot survive these levels without external circuit.

    More circuit is necessary to handle the load damp transient, e.g.TVS. 7.1 Absolute Maximum Ratings must be satisfied during transient.

    Best Regards

    Feng Ji

  • Hi Raymond,

    I have not seen an update for the last 22 days, so I assume the questions are/or answered and the issue is solved.
    I close this thread now. If there is still something open reply and the thread will get open again.
    If you have any other question or of the thread gets locked, please open a new one.

    Clicking the Resolved Button also helps us to maintain this forum.

    Best regards,