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Original question:

LM3914: LM3914

LM3914: LM3914

Ramana Murthy
Expert 1765 points
Part Number: LM3914

Dear Sir,

Currently, I am using LM3914V with 25V Battery, it's working perfectly alright.

I am thinking to use LM3914V with a 48V Battery for level indication.
Please let us know If there is any way to operate the IC safely with 48VDC input.

Regards
Murthy

  • 0
    TI__Mastermind 18550 points

    Hello,

    Absolute maximum specification for the supply voltage is 25V so, unfortunately,  you can not provide more than that to supply pin V+. You could experiment by putting a series zener diode with enough breakdown to voltage to supply, say, around 20V to V+.

    Kind Regards,

    Liaqat