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TPS2H160-Q1: Open Load Behavior

Wayne Liu
Expert 8705 points
Part Number: TPS2H160-Q1

Hi,

If only OUT1 is open, OUT2 is turned off also, the INx are both high, their is no such fault condition in the datasheet, is this behavior normal? Thanks. 

  • 0
    TI__Genius 16390 points

    Hi Wayne,

    Sorry could you elabroate on the conditions? I'm not fully understand.

    So the IN for both channels are high - both channels are turned on?

    Then OUT1 is open load, and OUT2 is not open load? And what behavior do you observe?

    Which version of device you are using? A or B?

    Regards,

    Yichi

  • 0 in reply to Yichi Zhang.
    TI__Expert 8705 points

    Yichi

    thanks for your support. 
    Both channels are ON, out1 is open but out2 is not, I am using A version. In this case, if only out1 is open,   out2 is off automatically. Hope this is clear. 

  • 0 in reply to Wayne Liu
    TI__Genius 16390 points

    Hi Wayne,

    Thanks for the explanation. It makes more sense. Is it the case that you had both channel connected to load, and suddenly you remove the load from channel 1, and channel 2 is off? Or you start with channel 1 open load, and both channel can't output current?

    Could you probe ST pins for both channels?

    Regards,

    Yichi