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UCD90160A: One enable output for several rails

Part Number: UCD90160A

I have 5 voltage rails monitored for which a single common enable signal is available. There isn't possible to assign the same Enable GPIO output for more rails in Fusion Digital Power Designer. Is it possible configure the Enable pin common for more voltage rails without external wiring?

  • Hi Mike

    my understanding is that the 5 votlage rails have own EN inputs but they can be from a single source. Is this right.

    If so, you have to wire the single output from UCD to 5 EN singal respectively. The external wiring is required regardless.

    GUI does not support to assign a single phyiscal pin to multipe rails, is this a gating item for your implementation?

    Regards

    Yihe

  • Hi Yihe, there is the only one EN regulator input and it has to be assigned to 5 monitored rails. Any of these rails should drive the same EN signal. It could be done by "Fault Shutdown Slaves" in GUI.