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TLV9020: TLV9020 Input Current when Unpowered

John Zelno
Prodigy 60 points

Part Number: TLV9020

I understand that the TLV9020 has fault tolerant inputs that can handle being powered when the part does not have power.  What is the worst case input current on these inputs under this condition?

Thank you.

  • 0
    TI__Guru 70526 points

    Hello John,

    Yes. See the second paragraph of section 6.4.2.2

    "The fault tolerant inputs can be any value between 0V and 5.5V, even while V+ is zero or ramping up or down.
    This feature avoids power sequencing issues as long as the input voltage range and supply voltage are within
    the specified ranges. This is possible since the inputs are not clamped to V+ and the input current maintains the
    value even when a higher voltage is applied to the inputs."

    Currents are similar to the regular bias current (reversed biased junctions). See the graph figure 5-6 (~1-2nA).

  • 0 in reply to Paul Grohe
    TI__Guru* 75091 points

    Adding to Paul's reply, for the inputs below negative supply the maximum allowable input current is 10mA - see below.