LPC2366 RTC Battery drain

Hi...

I am using LPC2366 in my application, I have connected CR2032 3V Lithium
Battery to maintain the RTC.

The Problem with the System is I have to change the CR2032 3V Lithium Battery
After every two months...

I have reffered the errata sheet for LPC2366 RTC..

Another problem is when ever I change the RTC Battery ... Initially It
Takes current to 22mA... With system in OFF State, unless I power ON the
System....

Can any one tell me the cause for this ?

Parents
  • For LPC2366 active mode battery current is near to 20ua in thi condition impossible to finih battery life in a month. But i think your system is not working continuously. Active mode means your system must be powered. there is no sufficient data in passive mode how much current need is seen at bat pin. you can easiliy meaure this with a avometer.Or you can check your board.

Reply
  • For LPC2366 active mode battery current is near to 20ua in thi condition impossible to finih battery life in a month. But i think your system is not working continuously. Active mode means your system must be powered. there is no sufficient data in passive mode how much current need is seen at bat pin. you can easiliy meaure this with a avometer.Or you can check your board.

Children
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