• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 54 subscribers
  • Views 388 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC2510 PM2 power consumption

zag
Prodigy 20 points
Other Parts Discussed in Thread: CC2510

Hi everybody,

I'm using CC2510 chip and trying to measure power consumption at PM2 mode. I'm also using part of the sw indicated in the swra162a. the value I see with the oscilloscope is 114uA but not 0.5uA as indicated on the CC2510 datasheet.

any ideas?

thank you very much

zag

 

 

 

  • 0
    TI__Mastermind 21125 points

    Hi Zag,

    Have you checked the state of your IOs? They should be configured to a known state with no drive-contention.

    Rgds,
    Kjetil

  • 0
    Expert 1535 points

    Hi Zag,

    be aware that the default port configuration is input with pull-up with 20k. Except P1.0 and P1.1 which do not have any internal pull resistor. These two pins should therefore be set as outputs or pulled high/low externally to avoid leakage current.

    If you have any input port connected to your PCB this will cause current through the pull-resistor depending on the voltage level.

    Imagine VDD=2V and just one input with internal pull-up is connected to the PCB which has 0V. Only this single port will cause 2V/20k=100uA static current.

    regards

    spachner