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LM5122: Current detection position

Kaji@PAN
Mastermind 7165 points
Part Number: LM5122

Hello,

Is it possible to control by putting resistors Rs on the low side and detecting the current with the CSP pin and CSN pin?

Best regards,

  • +1
    TI__Intellectual 2775 points

    Hi，


    This is a differential amplifier, theoretically you can put it on the low side, but I don’t recommend you to do this.

    On the low end, you need to be careful to deal with the effects of switching noise.
    In addition, switching noise will let negative voltage, you need to pay attention.

    You need to do a careful evaluation on the system board.