• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 21 subscribers
  • Views 293 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.

LMK03806: Ferrite bead selection

Pratiksha Halijwale1
Prodigy 160 points
Part Number: LMK03806

Hi,

Kindly let me know what DCR value ferrite beads are to be used for device power supply pins. 

Regards,

Pratiksha

  • 0
    TI__Mastermind 33790 points

    Hi Pratiksha,

    Using the LMK03806BEVAL as an example, we include BLM18AG121SN1D ferrite beads. The DCR for this device is listed as 0.18Ω (0.28Ω max) at 800mA rated current, 85°C. Anything smaller then 0.3Ω max at 85°C should be sufficient - each power supply pin draws at most around 200mA, making for a worst case voltage drop of around 60mV. Acceptable range for the device supply pins is ±5% or ±150mV.

    Regards,

    Derek Payne