Part Number: UCC256404 Other Parts Discussed in Thread: UCC28064 Tool/software: Hello. I have question about startup of UCC256404.
My design works well but I have problem with starting with full load. Output of trafo is designed for 80V and 10A (800W…
Part Number: UCC256404 Hast this part ever been tested with a Totem Pole PFC front end?
The reason I am asking is that we are working on a TPPFC + LLC design. When the Slow leg MOSFETs swap operation the transition from 0 to 400V or vice versa. When…
Part Number: UCC256404 Hi Mani
On LLC Pin 1 HV what is values need to set I could not find?
I just did the calculation If it is 88rms (250pk pk)
I=88V/3K =29ma
V=I X R= 29mA X 3K= 87VDC
so HV pinset for 87VDC?
Please advice
Regards
Part Number: UCC256404 Tool/software: Wanted to know what is Latch and Restart mean wrt OVP protection scheme. Also, has my IC gone bad in case of me shorting the output terminals of my design which is why it is not able to perform its control operation…
Part Number: UCC256404 Other Parts Discussed in Thread: UCC24624 Tool/software: I am designing a +/-160 Volt @ 5A with a +/-24V 3A for positive 24V and 1A for -24V power supplies with synchronous rectification and I have a couple of queries.
UCC256404…
Part Number: UCC256404 Tool/software: I am trying to design an AC/DC converter for a 600W amplifier, where the input voltage is 230VAC, anche the output voltage is +-80V. The switching frequency is 100kHz. I need to know if I filled the excel calculation…
Part Number: UCC256404 Tool/software: To whom it may concern, I need some inputs regarding some issues I am facing with the UCC-256404 IC which is a LLC Resonant Controller IC. I need help on the following:-
1. Whether the above IC has reverse polarity…
Part Number: UCC256404 Tool/software: We have developed one DC-DC converter using LLC controller UCC256404 for Aerospace application.
Same product we want to use it for military application where operating temperature requirement is -55 deg C. Is there…
Part Number: UCC256404 Other Parts Discussed in Thread: PFCLLCSREVM034 , Hi Mani
Figure 2. PFCLLCSREVM034 Schematic Diagram: LLC Section
I Can not see the pin #9 connection LL/SS to ? Where it connected?
What is good ref design for UCC256404…
Part Number: UCC256404 I am using the UCC256404 in a DC-DC resonant converter with a planar transformer, GaNFETs for the HV halfbridge, and SiCDiodes for the output. When I startup the controller, sometimes the high side gate does not drive leading to…
