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LM5118: LM5118 Inquiry about unused pin processing.

BJ Han
Expert 2035 points
Part Number: LM5118

HI TI,

LM5118 Unused Pin (2-Pin UVLO, 11-Pin SYNC, 17-Pin VCCX) We will inquire about three processing methods.

We ask for confirmation of the method that can be used stably to prevent malfunction.
 
1 Example) Pull up resistance
2 Example) Pull Down Resistor or GND Direct
3 Example) Floating processing

Thank you.

  • 0
    TI__Mastermind 21720 points
    Hi BJ,

    Here are the suggested modes.

    1. UVLO - Pull up to a voltage above the undervoltage threshold specified in the datasheet. Can simply be pulled up to a 3.3V rail of 5V rail.
    2. SYNC - leave floating. No problem here
    3. VCCX - pull to ground if not being used.

    Thanks,

    Garrett