topic Re: lpc4078fbd208 battery current consumption in LPC Microcontrollers

lpc4078fbd208 battery current consumption

lpcware — Wed, 15 Jun 2016 18:33:09 GMT

Content originally posted in LPCWare by skrivuts on Fri Sep 13 00:08:23 MST 2013
Dear colleagues!

During evaluation the LPC4078FBD208 device which
seems to be pretty interesting and suitable for my project
I have encountered with a problem.
The current consumption from the 3V-battery comes up to 27uA.
I measured all four chips I have and result was 20..27 uA.
One of the chip was without the user code.
And just when I connect the 1.3V element the current goes down to 1uA.
But it is not enough for the clock to work well.
Please help me to get an answer.
Thank you.

Re: lpc4078fbd208 battery current consumption

lpcware — Wed, 15 Jun 2016 18:33:10 GMT

Content originally posted in LPCWare by xianghuiwang on Sat Sep 28 16:45:50 MST 2013
Hi, SK,

Is "1.3V element" what you really want to say? Are you trying to say "3.3V element"?

"And just when I connect the 1.3V element the current goes down to 1uA."

Re: lpc4078fbd208 battery current consumption

lpcware — Wed, 15 Jun 2016 18:33:11 GMT

Content originally posted in LPCWare by skrivuts on Sat Sep 28 23:04:38 MST 2013
Hi, Xianghui Wang

When I connect 3.3V, 3.0V or 2.5V the current is about 20uA.
When I connect 1.3V it becomes 1..2 uA.
I expected the consumption to be 1uA at 3V (standard LiIon battery).