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LM61440: Unused VIN2

Takashi Onawa
Genius 13200 points
Part Number: LM61440

Hi Team,

One quick question.

Will the device work with only one power input(VIN1)?

My customer understands it gets better EMI performance when using both VIN pins but they want to use only one side for cost and layout size reduction. so please tell me if it's possible or not.

Regards,

Takashi Onawa

  • 0
    TI__Mastermind 23845 points

    Hi Takashi-san,

    It is possible but the IC and the IC should work but it may not be optimized to work in such a way (in terms of thermal, efficiency, EMI, etc since you only used one side of the VIN) 

    Another alternative is to check with the EVM for the customer condition to see if they are satisfied with the performance by using one VIN pin

    Thanks

    -Arief

  • 0 in reply to Arief Hernadi
    TI__Genius 13200 points

    Hi Arief-san,

    Thanks for your prompt response on this. I understood that it might be possible but we haven't check.

    I will ask them to check that on their bench with our EVM if needed.

    Regards,

    Takashi Onawa