• UCC256404: UCC256404

  

  sathyapal reddy

  Part Number: UCC256404 Tool/software: Hello TI Team, I am using UCC256404 llc resonant controller for my AC to DC converter with out PFC.My input voltage range is 103VAC to 127VAC,50W converter .I am facing startup issues with full load,I kept the…

  • 3 months ago
  • Power management
  • Power management forum

• UCC256404: UCC256404: I have a problem with the boot of the UCC256404

  

  SAUL ARCIGA

  Part Number: UCC256404 Tool/software: According to the UCC256404's technical specifications, pin 1 is the HV input, and after feeding the PFC out line to this input with its resistors, a 13V LDO output should appear on RVCC pin 12. In my case, there is…

  • 4 months ago
  • Power management
  • Power management forum

• UCC256404: UCC256404

  

  Andrej Dobrovic

  TI Thinks Resolved

  Part Number: UCC256404 Tool/software: I found new problem with my design with UCC256404. When running device output is connected to load 80V / 4A, and load is disconnected, feedback primary (before optocoupler) is broken. There are destroyed zener diodes…

  • 4 months ago
  • Power management
  • Power management forum

• UCC256404: UCC256404 HB -LLC always in burst mode

  

  Rahamadullah A

  Part Number: UCC256404 Other Parts Discussed in Thread: UCC25640EVM-020 , ISOM8110 Tool/software: Hi We have implemented a power supply of 100W PFC +LLC using UCC2818EP and UCC256404. When we tested our PCB it is giving us less efficiency than the…

  • 2 months ago
  • Power management
  • Power management forum

• UCC256404: help on LLC circuit schematic with using UCC256404, UCC28180, UCC24624

  

  Wenting Wu

  TI Thinks Resolved

  Part Number: UCC256404 Other Parts Discussed in Thread: UCC28180 , , UCC24624 , PMP22087 Tool/software: Hello expert, Do you mind helping on checking the schematic attached which is using devices, UCC256404, UCC28180 and UCC24624? Now this is the…

  • 1 month ago
  • Power management
  • Power management forum

• UCC256404: UCC256404 no output regulation in startup

  

  Andrej Dobrovic

  TI Thinks Resolved

  Part Number: UCC256404 Tool/software: Hello. Can you give me any idea, what causes that output is not regulated to desired value. I used new trafo for higher power with, device is UCC256404. Calculations are included. Desired output value is 80V. After…

  • 5 months ago
  • Power management
  • Power management forum

• UCC256404: UCC256404

  

  Gangi Anandkumar Reddy

  TI Thinks Resolved

  Part Number: UCC256404 Other Parts Discussed in Thread: PMP22951 , Tool/software: Hi team, can you please provide the simulation model for the PMP22951.1 Thanks

  • 9 months ago
  • Power management
  • Power management forum

• UCC256404: UCC256404 Burst soft ON/FF

  

  user6455458

  TI Thinks Resolved

  Part Number: UCC256404 Tool/software: Hi team Burst soft ON doesn't work on UCC256404. Burst soft OFF works. This is true whether the load is light or heavy. The settings are as follows: BMTH: 1.8V BMTL/BMTH ratio: Option 1 Lowering the BMTL/BMTH…

  • 8 months ago
  • Power management
  • Power management forum

• UCC256404: UCC256404: startup problem if using high value secondary side capacitor - follow up

  

  Leonard Preymann

  Part Number: UCC256404 Tool/software: Hi Manikanta and Team, what was the outcome of the above question? We have a similar problem with start up behaviour of UCC256404. BR, Leo

  • 4 months ago
  • Power management
  • Power management forum

• UCC256404: LLC-SRC Design

  

  yunyun sun

  Part Number: UCC256404 Tool/software: Looking at technical articles：《LLC design considerations for audio amplifiers》, I found that there is a related article for APEC 2023，《 IS14.2 - Designing an LLC Resonant Converter for Audio Applications with High…

  • 13 days ago
  • Amplifiers
  • Amplifiers forum

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