Hello,
I have this circuit connected to a USB charger and a 2P1S Li-Ion battery. Iset2 is pulled high and Iset1 is terminated with a 1k resistor to limit the USB current to 500mA.
This design has been in the field for over a year and yesterday a customer asked why the charge LED (STAT1) is blinking. I'm at a loss - can you see any obvious mistakes in component selection?
Several units behaved this way (LED blinks) for a few minutes, then it would stop and not blink (continue to charge) as expected. Customer had 3 units being charged, each with separate 1A USB chargers. I can't seem to replicate the problem at the factory.
Any help would be greatly appreciated!
DLH
