Tool/software:
Hi there,
This is Racheal from AA3 team in Shenzhen. My customer is now using TMCS1126 in PFC current detection. When the power ramping up, the output signal of TMCS1126 is toggling with amplitude of 60mV, shown as below. The signal toggle frequency is not fixed and its amplitude exceeds the calculated output noise 30mV.
The blue is output signal (TMCS1126 pin tested). The purple is Vref of TMCS1126. The yellow is current TMCS1126 tested.
The OCP is pulled high. The OC is pulled low. NC is pulled low.
Thanks,
Racheal Shen
