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TMUX154E: leakage current

Jeff YANG
Mastermind 7960 points
Part Number: TMUX154E


Tool/software:

Hi,

We found leakage current about 2.6mA in TMUX154E when CC=VEN=VSEL=0V, 1.8V for A/B port.

It should <2uA leakage in this condition. Does there have any reason to cause this leakage? thanks!

Jeff

  • 0
    TI__Mastermind 20195 points

    Hello Jeff,

    This is a very high leakage current. The device might be damaged. 

    Is this issue seen across multiple devices?

    Thanks,

    Nir 

  • 0 in reply to Nir Gilgur
    Mastermind 7960 points

    Hi Nir,

    We found leakage depend on our test tool.

    But we have question aboout If VDD = 1V~2.5V, port A/B have 1.8V, it may possible have leakage current from portA/B to VDD?

    Thanks!

    Jeff

  • 0 in reply to Jeff YANG
    TI__Mastermind 20195 points

    Hello Jeff,

    What do you mean the leakage is dependent on the test tool? How much does it differ? 

    I can't predict device behavior at VDD = 1V~2.5V this is below our recommended operation conditions. 

    I recommend to use the TMUX154E within its specifications limit.

    Thanks,

    Nir 

  • 0 in reply to Nir Gilgur
    Mastermind 7960 points

    Hi Nir,

    What do you mean the leakage is dependent on the test tool? 

    => We found leakage caused by test tool. There is one path caused the leakage.

    Is there a suggested VCC level below which a Power off should be considered a correct Power off? How low does the level need to be to avoid malfunctions?
    Thanks!
    Jeff

     

  • +1 in reply to Jeff YANG
    TI__Mastermind 20195 points

    Hello Jeff,

    VCC = 0V is when the device is considered powered off. 
    VCC = 3V min is when the device is considered powered on. 

    Voltage between 0 and 3 is when I cant guarantee the device behavior since it exceeds the specifications limit in the datasheet.

    Thanks,

    Nir