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Power consumption by CC2541 KeyFob

Anshul Jain97

Expert 1170 points

Other Parts Discussed in Thread: CC2541

Hi,

Can anyone tell me how much cuurent is consumed by CC2541 Keyfob in connected state? If I am using a CR2032 battery with 225mah how much time it will take to end if used continuously?

I developed a custom board with cc2541 having same configuration as CC2541 Keyfob but when i am calculating current consumed it is taking 0.001 mA in connected state due to that if i calculate battery life it is coming to 4 days max only.

Can anyone tell me what changes should i make to reduce current consumption?

Thanks,

Anshul

over 10 years ago

0 Fredrik K over 10 years ago

TI__Guru** 106705 points

Hi Anshul,

You can refer to this application note and the excel calculator which it links to.

Cheers,
Fredrik

0 Anshul Jain97 over 10 years ago in reply to Fredrik K

Expert 1170 points

Hi Fredrik,
Will you please clear about which application note and excel calculator you are talking about??

Thanks,
Anshul

0 A. Rebel over 10 years ago in reply to Anshul Jain97

TI__Genius 11740 points

Hi Anshul,

I believe he's referring to swra347(http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=swra347&fileType=pdf ) Measuring Bluetooth power consumption. The Excel spreadsheet can be downloaded here: ( http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=swra347&fileType=zip )

You can view useful documentation about a TI product from it's product page - under technical documents.

Regards,

-Rebel

0 Fredrik K over 10 years ago in reply to A. Rebel

TI__Guru** 106705 points

Hi Rebel, Anshul,

That is the document I was referring to. Seems like I forgot to add the link :-)

Cheers,
Fredrik

0 Anshul Jain97 over 10 years ago in reply to A. Rebel

Expert 1170 points

Thanks Rebel.

0 Anshul Jain97 over 10 years ago in reply to Fredrik K

Expert 1170 points

Thanks Fredrik.