Hi team,
customer use LP8860-Q1, when power up, they will initalize the LP8860-Q1, during the init, they found the VDD will be drop to 2.4V, and then device will be lock display black.
if power up and no init, the VDD is stable. below is the waveform and SCH of VDD. 3.3V series a 10ohm resistor then power to VDD of LP8860-Q1.
more information:
1. measured the R330 left and right voltage, before R330, the VDD is stable, but after R330=10ohm, the VDD will be drop. Pink is before, green is after.
2. when we remove the R330 to 0ohm, the VDD will be stable during init.
can you give comments why the 10ohm will affect the VDD drop? thank you
