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Original question:

LMP8480: Vsense calculation

LMP8480: the IC always destroyed when we do the hot swap test ,

BINGFANG HU
Prodigy 40 points
Part Number: LMP8480

in our design circuit ,we use the LMP8480 to sense high side current ,but the IC always destroyed when we do the hot swap test ,I don't know ,please help me how to solve this issue. thanks very much .

  • 0
    TI__Mastermind 26485 points

    Hello User,

    I need a little more information to attempt to help.  Is there anyway during your test you exceed absolute max rating in the datasheet?  If so then this will cause issues and .  What exactly are your conditions on the LMP8480 and how do you run the test?  How is the LMP8480 destroyed?  Is it the output, the input, or the supply pins that have issues after your event.

  • 0 in reply to Javier Contreras4
    TI__Mastermind 27715 points

    Hello User,

    It's been a week since your post, so I hope your issue has been resolved. If you still need help, please reply with answers to Javier's questions so he can continue to assist you.

    Best regards,

    Ian Williams
    Applications Manager
    Current Sensing