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TPS552882: What is the function of ISP-ISN

Miles Li1
Intellectual 1640 points
Part Number: TPS552882


Hi team,

Customer is wondering, if the current through the shunt between ISP and ISN, what would happen? Would it keep constant current output or it would shunt down the IC and make current=0?

Thanks!

  • 0
    TI__Mastermind 34231 points

    Hi Miles,

    It depends on the load current. If the load is a constant current load, when the CC current is higher than setting maximum output current, the Vout will be pulled down to 0V.

    If the load could be seen as a constant resistance, when the load current reaches to maximum output current, the output will keep constant current.