• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 51 subscribers
  • Views 229 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.

CC2540 Startup power consumption

John Munroe
Intellectual 760 points

Hi

I've gone through the datasheet but I can't seem to find a figure for the power consumed during the booting up of the chip. The current measurement I have gives up to 50mA. Is 75mW for 0.5ms in the right ballpark?

Thanks

  • 0
    TI__Mastermind 29650 points
    This is as far as I know not a part of the device characterization. However I can give you some approximate numbers.
    When the device boots the highest current peaks will be during charging of the VDDR (10uF) and DCOUPL(1uF) capacitors.
    This charging is current limited to approx. 20-25mA and will last for T= C*V / I, where C is the capacitor, V is the voltage (1.7V and 1.28V), I is worst case 25mA.

    Regards,
    Svend