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Recent content by bkelly76

  1. bkelly76

    USB Hub current and operations

    Hello IRstuff, That is a good checklist. To be a bit more specific, we have a phillips ISP1362 OTG (on the go) controller chip and per the data sheet it appears to have a max current capacity of 20 ma, far below the allowed startup current of 100 ma for USB 2.0. I am trying to figure out...
  2. bkelly76

    USB Hub current and operations

    We need to add a USB hub to our handheld unit operating under Windows CE (battery powered). Where can I find out how much current various hubs need? In particular, powered hubs. Where can I find out the operations of the hub with regard to all the messages that the hub sends to and from the...
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