LM3880: Quiescent Current

Akash Patel

Part Number: LM3880

Hi team,

Looking at the LM3880 datasheeet, I see that the Iq is 25 uA which I assume applies when the enable pin is low. What is the current when the enable pin is high?

Regards,

Akash Patel

over 7 years ago

0 yihe over 7 years ago

TI__Guru 65920 points

We will double check on this but the 25uA is the Iq when EN pin is high.
Regards
Yihe

0 Akash Patel over 7 years ago in reply to yihe

TI__Expert 6245 points

Hi Yihe,

Thank you. Can you please also check on the current when the EN pin is low?

Regards,
Akash Patel

0 yihe over 7 years ago in reply to Akash Patel

TI__Guru 65920 points

Hi Akash
The Iq in the data sheet is measured when EN is HIGH. There is no EN low data available.

Regards

Yihe

0 Akash Patel over 7 years ago in reply to yihe

TI__Expert 6245 points

Hi Yihe,

Can you clarify why this current is labeled as "quiescent?" Seems like this is more active mode current.

Are you able to capture for us what the current looks like when EN is low?

We are interested in using this in an application where most of the time EN will be low.

Regards,
Akash Patel

0 yihe over 7 years ago in reply to Akash Patel

TI__Guru 65920 points

As defined in the data sheet, it is operating quiescent current, so it is acive mode current.

Regards
Yihe

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LM3880: Quiescent Current