Part Number: UCC2818A Hello.
I made a 1200W power supply using UCC2818A. We conducted tests to confirm the performance of this power supply. Noise tests were performed. UCC2818A stopped its operation. At this time, VREF pin = 0 V. It will not recover unless…
Part Number: UCC2818A Hello. I have a question about UCC 2818A.
Q1 Kis the multiplier gain constant. What does K = 1 / V mean? Q2 datasheet P15 I think that Figure 5 is the value of each part of the circuit at K = 1. When considering K = 1.5, which part of the…
Part Number: UCC2818A A large power limit deviation issue has been occurred in Customer’s mass produced power sources.
Product rate of exceeding ±20％ deviation is going up one to two percent.
In some cases, replacing the UCC2818A has largely…
Other Parts Discussed in Thread: UCC2818A Hello.
UCC2818A Question.
datasheet P3 spec VCC turn-off threshold. Min 9.4V typ 9.7V
How many is MAX value?
thank you.
Other Parts Discussed in Thread: UCC2818A In one of our applicationsWe have designed a 230V AC input supply to 385V DC output follwed by a isolated DC-DC converter delivering 26V output.The load is 150W max. We are using UCC2818A Chip fr power factor control…
Other Parts Discussed in Thread: UCC2818A HI,
In one of our applications. We have designed a 230V AC input supply to 385V DC output followed by a isolated DC-DC converter delivering 26V output.The load is 150W max. We are using UCC2818A Chip fr power factor…
Other Parts Discussed in Thread: UCC2818A Hi Team, There is application note about "Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Converters". http://www.tij.co.jp/jp/lit/an/slua309c/slua309c.pdf I would like to ask…
Other Parts Discussed in Thread: UCC2818A Hi
Our customer is considering UCC2818A
Please let me know how much is value of internal impedance at IAC pin.
Best regards.
