Part Number: UCC3818 Hi Expert,
Would like to know the detail of PKLIMIT behavior.
According to the block diagram of PKLIMIT,once the threshold is triggered from this PIN.The DRVOUT should be disabled.
The question is about once there is continuing current…
Part Number: UCC3818A Other Parts Discussed in Thread: UCC3818 Hi Expert,
The engineer would like to consider to leverage their mature AC-DC design that adopted the UCC3818 inside for 220VDC to 380VDC input applicant instead.
The difference is one from …
Part Number: UCC3818A Tool/software:
Hi
Customer use UCC3818A, and find abnormal noise in some board, at their MP statge.
we had summited FA, but the FA shows there is no issue on those IC (first FA returns IC).
Could you help check this issue? and…
Part Number: UCC2818 Other Parts Discussed in Thread: UCC3818 Hello, customer used the UCC3818 for their PFC. For the new design they needed the full industrial temp range up to 85°C and so they used the UCC2818 on the same PCB. But the PFC regulation…
Part Number: UCC28180 Other Parts Discussed in Thread: UCC2818 , UCC3818 Hi team,
May I know What difference between UCC28180, UCC2818 and UCC3818 is?
Customer would like to know this difference include the feature for choose which one will be better…
Hi Peter,
regarding the issue at light load in UCC3818, I found n°3 boost circuits working correctly and only one with the problem of high frequency at the output. At this point I suppose something wrong in the driver TC4428 tied at the output and…
Other Parts Discussed in Thread: UCC3818
When using a leading edge triggered PFC controller such as the UCC3818 the designer may find that the converter, under extremely light-load conditions, will encounter an audible low noise.The unit under these conditions…
Other Parts Discussed in Thread: UCC3818 Hello,
We have question about peak current limit of UCC3818 as below.
my application is AC-DC power supply and use UCC3818 as PFC.
- how the difference behavior of PKL between 90Vac and 264Vac at max load conditition…