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Original question:

LM5155-Q1: How to improve gate voltage

LM5155-Q1: LM5155 VCC Pin connection

kun.wang
Prodigy 30 points
Part Number: LM5155-Q1

Tool/software:

Hello

     I connect 5155 VCC Pin to VDD-12V, it seems works ok. MOS gate voltage changed from VCC to 12V. I'm not sure whehter I can use the circuit connection.

    Thanks!

  • 0
    TI__Expert 5485 points

    Hello,

    thank you for using E2E.

    It is possible to connect an external voltage to VCC. But keep the abs. max. ratings for the VCC pin in mind, that are given in the datasheet.

    Best regards

    Moritz