AVR-Chat

On 11/29/06, Richard Cooke <rcooke@digitalwavelength.com> wrote:
>
> Hi Folks,
>
> I'm working on a battery powered consumer product that will use a 3V
> button cell.  I think we've settled on the CR2032 which has a capacity
> of 225uAH.


Isn't that mAH?  1000 times more.

My question to the group - can I just use the battery or do you think
> I'll need some type of regulator?


What does the data sheet tell you?
The battery will deliver 3.1 - 3.2V when new, and drop off as it ages.
2.0V is typically considered "dead".

The application will be mostly in the off state.  I'm planning to have
> the unit ON after being plugged into the  item to be controlled and
> then after 10 minutes go into the low power mode and then after 30
> minutes turn itself off.


Is there a real advantage to that low power interval?


[Non-text portions of this message have been removed]