DRV2604L / input capacitor

K.Yaita

Hi Team,

My customer found a recommended value of input capacitor was updated from 1uF to 0.1uF.

Is it still possible to use 1uF?
I would also like to know if it is possible to use 10uF.

Best Regards,
Yaita / Japan disty

over 9 years ago

0 JP over 9 years ago

TI__Expert 3791 points

Hello Yaita-san,

Thank you for posting on E2E. We are looking into this and will get back to you.

Best Regards,

Javier Palomo

0 K.Yaita over 9 years ago in reply to JP

Guru 29720 points

Hi Javier-san,

Thank you for your support.
I will wait for your team's reply.

Best Regards,
Yaita

0 JP over 9 years ago in reply to K.Yaita

TI__Expert 3791 points

Yaita-san,

For the input capacitance on VDD, it really depends on the how much noise is on the power supply line. If you think you may have a little more noise, then I would use the 1uF. Otherwise, the recommended 0.1uF is recommended.

Regarding the 10uF, I don't see anything wrong with using a larger capacitance(not considering ESR), but it is not really needed for the VDD pin.

Is there a reason as to why your customer wants to use a higher capacitance?

Best Regards,

Javier Palomo

0 K.Yaita over 9 years ago in reply to JP

Guru 29720 points

Hi Javier-san,

Thank you for your support.
>Is there a reason as to why your customer wants to use a higher capacitance?
I believe there isn't, he wants to know just in case.

Please let me ask if I need your additional help.

Best Regards,
Yaita

0 JP over 9 years ago in reply to K.Yaita

TI__Expert 3791 points

Yaita-san,

Of course, let me know if you need any more help!

Best Regards,

Javier Palomo

0 K.Yaita over 9 years ago in reply to JP

Guru 29720 points

Javier-san,

I appreciate for your kind support.

Best Regards,
Yaita

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DRV2604L / input capacitor