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TPS2112: Supply and leakage currents

Seishin
Genius 4135 points
Part Number: TPS2112

Hi,

The maximum supply current is different between IN1 and IN2 even though the test conditions are the same.(TPS2112 Datasheet Page.3)

Q1.What is ｔhe reason for this difference?
      Where is the terminal measurement?

Q2.Under the following conditions, is there a leakage current from the Out pin to IN2?
      IN1=5V
      IN2=0V
      VSNS=0V
      /EN=0V

      OUT=IN1

Best regards,
Seishin

  • 0
    TI__Genius 15780 points

    Hi Seishin,

    While the test conditions are the same, IN2 is active, and this causes less leakage on the IN2 pin. If you notice, there is also a condition for when IN1 is enabled, and the behavior is reversed for both channels. The reason they are different is because one supply is active and the other is not.

    As for Q2, you can look at the "Reverse leakage current to INx" spec, and this specifies the reverse leakage to be 0.3uA typical and 5uA max.

    Thanks,

    Alek Kaknevicius

  • 0 in reply to Aleksandras_Kaknevicius
    Genius 4135 points

    Dear Alek,

    Thank you for the quick reply.

    I understand your comments.

    Best regards,
    Seishin