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TPS53515: How to measure IVIN(leak)

Hirokazu Takahashi
Expert 8420 points
Part Number: TPS53515

Hello Support team,

We would like to check the supply current of TPS53515 with EVM.

Could you please let me know how we can measure the value IVIN(leak), IVDDSTBY and IVDD in datasheet?

Best Regards,

Hirokazu Takahashi

  • 0
    TI__Mastermind 23785 points

    The parameters are measured on the ATE.

    IVIN(leak)  A voltage source is applied to VIN pin with EN pin = 0V and the current is measured into VIN pin

    Remove R19 on EVM board.  Connect 12V to VIN  J1.   Connect shunt on J2.  Measure current sourced from VIN supply (use AMMETER).

    IVDDSTBY A voltage source is applied to the VDD pin  with EN pin = 0V and the current is measured into VDD pin

    Remove R19 on board.  Connect 12V to VDD  J7.   Connect shunt on J2.  Measure current sourced from VDD supply (use AMMETER)

    IVDD     A voltage source is applied to the VDD with EN = 5V and the FB pin voltage applied > 0.6V (no switching ) and the current is measured into VDD pin.

    Remove R19 on board.  Connect 12V to VDD  J7.  Connect a voltage > 0.6V on the R21 resistor.   

    Open  shunt on J2.  Measure current sourced from VDD supply (use AMMETER).