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  • UCC28180: UCC28180 OVP threshold

    Part Number: UCC28180 Hello We are developing a SMPS that requires strict primary side regulation. We are evaluating the UCC28180 right now and its working well up to 650W witch is OK for our application. The only issue we are facing is the OVP…

  • UCC28180: UCC28180 Input current distortion

    Part Number: UCC28180 Hi, Based on the support team's recommendation, the inductance was doubled, but the results show the input current is still distorted, as shown in the figure below. I cannot overcome this by adjusting the inductor value. The current…
    • Answered

  • UCC28180: buck configuration UCC28180 load response

    Resolved
    Part Number: UCC28180 Hi TI, Im currently working on a 1kwatt buck PFC using UCC28180. It works well as step down converter on no load, but I notice at small load 1A (loaded on it DCDC side) dips instanly the output voltage (see image). Can you help…
    • Resolved
    • Answered

  • UCC28180: 3phase UCC28180 use

    Resolved
    Part Number: UCC28180 Tool/software: Hi i need to design a 3phase PFC using the device UCC28180. as below schematics. but i need to review the data bcs the power is lower respect to the drawing (22Kwatt) , my power is 8kwatt. can i use the UCC28180…
    • Resolved
    • Answered

  • UCC28180: How to enable and disable UCC28180.

    Resolved
    Part Number: UCC28180 Hello guys, One of my customers is considering using UCC28180 for their new products. At this moment, they have the following questions. Could you please give me your reply? Q1. They are trying to turn on/off the UCC28180 by…
    • Resolved

  • UCC28180: The UCC28180 driver has a step at low level,

    Part Number: UCC28180 Dear The UCC28180 driver has a step at low level, with an input of 90Vac. When the output is unloaded, the PFC driver has a step at low level, but there is no step at high voltage input or heavy load. Can you help analyze that…

  • UCC28180: UCC28180: About restart time

    TI Thinks Resolved
    Part Number: UCC28180 Tool/software: Hello Mr. Harish, I have stumbeled upon your thread about brown out functionality being added to UCC28180 in case of more powerfull PFC circuit - I supose? Is that correct? Anyways, I am in desperate search for…

  • UCC28180: AC input current of PFC based UCC28180 is not sine wave

    Part Number: UCC28180 Dear application engineer I'm design in UCC28180 in my electrosurgical tools as PFC controller. during debug, I find that the AC input current is not sine wave as I expected. my test result as below. my schematic as below.…

  • UCC28180: UCC28180( PFC IC_) How Reduce Voice noise ?

    Part Number: UCC28180 Tool/software: everybody Gooday How Reduce Voice noise ? When 115Vac / 60W (Pout),operator frequency 400HZ , Boots Induct 330uH , Capacitor 33uF Pls help me , Thanks for all
    • Answered

  • UCC28180: Design review (UCC28180 and UCC28951)

    Resolved
    Part Number: UCC28180 Other Parts Discussed in Thread: UCC28951 , , UCC27714EVM-551 Hi, I am creating a AC/DC power supply module taking in line voltage 230Vac A 50/60Hz and outputting 48Vdc/10A continuous. The high level architecture is "Line input…
    • Resolved

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