pic24 sleepmode power consumption

Discussion in 'Embedded Systems and Microcontrollers' started by jayanthik, Jan 22, 2016.

  1. jayanthik

    Thread Starter New Member

    Mar 29, 2007
    1
    0
    Hello guys I am using pic24hj128010 for my project which I have to use with battery so I need to reduce current!

    Data sheet says we can reduce consumption upto uA during sleep mode,But in sleep mode uC consumig 1.1mA as I checked on Ammeter, I am confused and dont no where I did wrong!
    But in my PCB even though i have soldered only controller and 5817 schotky diode before the controller supply.

    Regards
    Jayanthi
     
    Last edited: Jan 22, 2016
  2. Picbuster

    Member

    Dec 2, 2013
    374
    50
    where do you measure on the chip or on the power supply in.
    please provide schematic.
    It should draw no more then 50 micro amp on the power supply input.
    With precaution you must be able hit the 10-30micro.
    look at the tris reg status of port outputs and its load.
    switch to low xtal 32khz with a wake up.
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    Additionally, when is the last time you checked your ammeter?

    Ever put a 5M ohm resistor to 5V and try to read how much current you see?
     
  4. NorthGuy

    Active Member

    Jun 28, 2014
    603
    121
    Every TRIS bit set (as it is by default) leaves the input floating, which means it may switch randomly thus consuming power. Therefore, unprogrammed chip may consume quite a bit.
     
  5. dannyf

    Well-Known Member

    Sep 13, 2015
    1,781
    360
    What are the test conditions in the datasheet for the current spec and do they match your conditions?
     
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