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How to make sure TPD1E05U06 is failed at CTM side

Richard Yang1
Intellectual 1220 points
Other Parts Discussed in Thread: TPD1E05U06

Dear all:

      We recent obtain the feedback form ctm side that 50% of the device is failed because the Vf is come to 0.975-1.0, but the normal one is around 0.8. but the VBR is OK.So, ctm said the device is failed.

   Could you help to give ctm the comment how to judge the failure? we do not have the parameters for Vf , but ctm is still working on Vf, is it reasonable?

   if Vf is not for the reason of failure adjustment? Then  How can we suggest customer to test  the device on the board to be sure the device is OK when MP production?

Thanks!

  • 0
    TI__Expert 3500 points

    Richard-


    Thanks for working to design in the TPD1E05U06. To help you here I'll need a little more information about the application, if it is customer sensitive please feel free to email me at alec.forbes@ti.com.

    It sounds to me like the customer is not seeing any issues with the reverse breakdown, but is seeing some variation in the forward voltage breakdown (.8 to 1V) that is causing them to consider the device a failure. Can I ask why this is an issue? Because this device is unidirectional, we do not recommend using it for any signal rail that has a negative voltage component. There will always be some variation in Vf due to temperature and process, but between .8 and 1V should be enough below zero that it should not effect operation.

    Please provide some information about the application and why this is considered a failure and I will be happy to provide additional support.

    Thanks

    Alec