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LPC812 Current Consumption

Question asked by Theodoros Verykios on Jan 27, 2017
Latest reply on Mar 9, 2017 by Carlos_Mendoza



I am trying to replicate the current/power measurements of the LPC812 board. I have downloaded the AN11561 application note and source code from NXP and I downloaded the code for low power modes on my board.


However, I am getting ~3.2mA current consumption when in active mode and ~1.1mA when in sleep mode which is far off from the expected values. According to AN11561 and the datasheet of my microcontroller I would expect to see ~1mA when in active mode and ~0.7mA when in sleep mode.


Any suggestions on the cause behind the difference between the measured and the theoretical value?


Thanks in advance,