DRV2604L / VREG capacitor

K.Yaita

Guru 29720 points

Other Parts Discussed in Thread: DRV2604L, DRV2604

Hi Team,

I found following description in DRV2604L datasheet P.3.

It seems that DRV2604L recommends 1.0uF for VREG capacitor.

On the other hand, DRV2604L EVM adopt 0.1uF for VREG capacitor.

http://www.tij.co.jp/jp/lit/ug/slou390/slou390.pdf

Can 0.1uF be used for DRV2604L VREG capacitor?

I think 0.1uF can be used for DRV2604 but DRV2604L needs 1.0uF.

Best Regards,

Yaita / Japan Disty

over 11 years ago

0 Peter Li79 over 11 years ago

TI__Expert 8940 points

Hi, Yaita-san:

The Vreg capacitor recommended for DRV2604 is the same as DRV2604L : 1uF.

Thanks.

0 Kenichiro over 9 years ago in reply to Peter Li79

Mastermind 9165 points

Dear Peter, Forum Engineer,

My customer use 1.2uF for VREG of DRV2604. This should be okay, correct?

I describe the background a bit. Almost three years ago, we had a discussion with TI with regards to the "Standby Operation" which suggest customer to place a cap between 0.9uF to 1.4uF to prevent issue on heavy STANDBY usage. Then my customer put 1.2uF.

Thanks,
Ken

0 Kenichiro over 9 years ago in reply to Kenichiro

Mastermind 9165 points

Dear,

Can anyone support last query on this post?

Thank you for your support!
Regards,
Ken

0 Arjun_Prakash over 9 years ago in reply to Kenichiro

TI__Expert 7599 points

Hi Ken

A higher capacitor can cause higher standby and also high startup current. Why not use a lower capacitor? What is the reason for choosing 1.2uF.

0 Kenichiro over 9 years ago in reply to Arjun_Prakash

Mastermind 9165 points

Hi Arjun,

I like to share a app note from TI which describe this cap. Can you accept my friend request or send an e-mail to me?

tanaka-k(at)clv.macnica.co.jp
Thanks,
Ken

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DRV2604L / VREG capacitor