Part Number: UCC28780 Hi Experts,
Our customer BAOLIJIN made a 65W ACF board. UCC28780 is used as the primary control chip, the primary side with integrated GaN as the switch tube and the secondary side with synchronous rectification. Output voltage…
Part Number: UCC28780 Other Parts Discussed in Thread: PMP30631 , , PMP , TL431 Dir Sir/Madam,
I have successfully simulated the design on the kit .
Now I want to change the design to output 5V ~ 6A.
Simple iteration of the ratios reported in the PMP30631…
Part Number: UCC28780 Hi, I am trying to do AC simulation with the simulation file of UCC28780(GaN) in simplis, but the simulation always fails in convergence. Is it possible to perform AC analysis in simplis?
Part Number: UCC28780 For starting UCC28780 i supply flyback circuit with AC source 85 VRMS, and i measured on BSS depletion mode MOSFET Source pin almost 109 VDC rectified voltage. And , i measured on SWS pin for UCC28780, i saw that 2.5 V DC and same…
Part Number: UCC28780 I am using this IC to design 5V, 50W power supply using ACF.
i am unable to operate UCC28780 in burst mode it's always operate in AAM mode with light load can you please suggest what can be the debugging procedure to verify Burst…
Part Number: UCC28780 Hi,
I designed a USBC charger using UCC28780, the aimed power rating is 20V/6A. however, the temperature of switches rose to 90 degree under the 6 W output power. I checked the operation condition of UCC28780. it seems stable under…
Part Number: UCC28780 Other Parts Discussed in Thread: UCC2891 , UCC2893 , UCC2897A Hi..
One of my customer want to work on power supply for their range of products. Here are the specifications.
Customer is considering UCC28780 for their power supply requirement…
Part Number: UCC28780 Hi,
I would like to use this part in a DC-DC converter. I want to know relationship between voltage on Vs pin and Ivsl(which is used for slope compensation as well as over power limit)?
Best Regards,
Raju Baddipadige
Part Number: UCC28780
Dear Sir/Madam,
I made flyback converter according to the tida 01622 application note with UCC28780 ACF controller. When i supply the converter with AC supply, then controller does not have a supply voltage. Because according to…