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TM4C

Patrick Browne
Prodigy 30 points

For a TM4C processor we're using, we need to know the current consumption when it is being programmed.  The data sheet tells us current consumption when it is running, but we can't seem to find the other current consumption value.

  • 0
    Guru 117855 points

    Due to difference in number of pins, number/type of peripherals included - your specification of the MCU in question may yield an improved (better bounded) answer...

  • 0 in reply to cb1_mobile
    Prodigy 30 points

    Thank you for that suggestion.  The full part number is:

     

    TM4C123BE6PMI

  • 0 in reply to Patrick Browne
    TI__Intellectual 1530 points

    Hi Patrick,

    I have asked some engineers to see if there are such data collected. I will let you know once I have any more information.

    Angela

  • 0 in reply to StellarisAngela
    TI__Intellectual 1530 points

    Hi Patrick,

    Our product enginners got some characterization data from a different design with a similar flash pump on this Tiva part. Essentially we can expect a nominal increase of 30-35ma during programming, with a max increase of 40-45ma across PVT.  This current consumption would be added to whichever run mode you are operating under.

    They also mentioned that programming is the worst case from a flash perspective, so as long as you budget an additional 40~45ma for programming, you should have no problems erasing or reading the flash.

    Let us know if you have any questions.

    Angela

  • 0 in reply to StellarisAngela
    Prodigy 95 points

    Hi angela,

    I tried to look into this video which gives information on power consumption of TMC249 with launch pad but the image is too blur to see the numbers,can you provide the details of power consumption in different modes.

  • 0 in reply to rushit gandhi
    Guru 11940 points

    This thread is more than 2 years old, not sure if 'angela' is still present here at all ...

    Before asking a question, make sure to read the corresponding documents carefully.

    You have linked to the webpage for your MCU, now download/open the datasheet and read section 30.23, starting at page 2004.

  • 0 in reply to f. m.
    Guru 47900 points

    In addition to the (always) sage advice of f.m. may I note that, "Cutting it too close" during the Programming Process is NOT, "Well Thought!"

    We assume that many boards will be programmed - via (few) programming stations/equipment - thus "seeking savings in this critical area" - makes NO Sense!  

    If the maker notes 50mA - I'd DOUBLE that - at minimum.    The cost & headaches resulting from "improper" device programming FAR Outweigh any (power supply) (alleged) savings!   (Risk-Reward must receive (some) consideration)