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TPS1HB08-Q1: Isns current when load is unconnected

Takahiro Saito
Expert 5315 points
Part Number: TPS1HB08-Q1

Hi team,

Customer has a question about the current through SNS pin when the load is disconnected.

When the load is disconnected, does 1uA(max) of ISNSleak flow through SNS pin in the condition of VDIA_EN = 5V or 0V?

Regards,

Saito  

  • 0
    TI__Mastermind 19255 points

    Hello Saito-san,

    When the load is disconnected the device in an "open load" fault state. In this state if the switch is off and diagnostics are enabled (IN = 0, DIAG_EN=High), a fault current of ISNSFH will be reported out of the SNS pin. When the switch is on and diagnostics are enabled (IN=0, DIAG_EN=High), the current representative of the load current will be output.

    In the case where DIAG_EN=0V (regardless of input state) then there will be a maximum of ISNSleak of current flowing out of the SNS pin.