Hello, I'm developing a battery powered application using a PA4 device, the STOP3 mode, as it says in the datasheet, consumes about 1.4µA at 3v, And using an HP34401A I get almost exactly that 1.4µA, the problem is that when I put my finger near the PCB tracks the current consumption increases, it varies but it can jump up to 50µA, If I remove my finger it returns to 1.4µA does anybody has a clue about what's happening? How can it be possible that some noise or interference make it consume more current?
Solved! Go to Solution.
Hi Carlos.
I would estimate this is result of floating input(s). Add pullups or configure them to outputs (depending on what is connected to the pins)
Pavel
Hi Carlos.
I would estimate this is result of floating input(s). Add pullups or configure them to outputs (depending on what is connected to the pins)
Pavel
That was it, just made all pins 0 before going to stop3 and voila! 1.4µA no matter what. Thank you very much, I've learned something new :smileywink: