TFP401A: Ferrite Bead on power rail

K.Hamamoto

Part Number: TFP401A

I have a question about ferrite bead on power rail (DVDD, OVDD, AVDD,PVDD).

On the datasheet , the BLM18RK601SN1D is used as ferrite bead on power line (Figure 21). However the customer would like to use BLM18BD601SN1D instead of BLM18RK.

The characteristic of impedance are different between BLM18RK601 and BLM18BD601. Is it possible to use that ferrite bead ?

( BLM18RK601 and BLM18BD601 )

Please let me know if there are some concerns.

Regards,

Koji Hamamoto

over 8 years ago

0 K.Hamamoto over 8 years ago

Guru 12155 points

Hi

Could you follow this post,please?

Regards,
Koji Hamamoto

0 Elias Villegas M. over 8 years ago in reply to K.Hamamoto

TI__Guru* 76130 points

Hello,

You have ton consider the sources of the noise you are expecting, as you can see, the plot on the top has better performance in lower frequencies, so Customer has to measure the noise they are getting so they can now which one will fit better.

Regards

Interface

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TFP401A: Ferrite Bead on power rail