Battery Supply and Deep Power Mode

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by looney on Fri Feb 19 07:31:50 MST 2016

I am working on a project with a LPC1769 Board and a real time clock with a battery backup(3,3V) and it works  :) , but i want to lower the current. Is it possible to go in deep sleep mode during the normal power supply drops out? For the moment the current is around 70mA if there is no main power supply. Furthermore is the current of the battery supply around 25mA with the main power supply.

I would appriciate if the current of the battery supply doesn't drain during normal power supply. In addition I want a lower current with deep sleep mode when the nomral power supply turns out and the battery supply supports.

Thanking you in anticipation Looney