Search tips
Showing 199 results View by: Thread Post Sort by
    Answered

  • UCC28782: The output voltage fluctuates greatly when the output current is changed

    Resolved
    Part Number: UCC28782 Other Parts Discussed in Thread: TL431 Tool/software: Hello, I would like to ask a question about the behavior of UCC28782. I have measured a phenomenon in which the output voltage fluctuates greatly when the output current is…
    • Resolved

  • UCC28782: Under light load conditions (load power below 2W), the chip experiences VDD power loss and repeatedly reboots

    TI Thinks Resolved
    Part Number: UCC28782 Other Parts Discussed in Thread: PMP22244 Dear TI Engineers, I'm having some issues while using the UCC28782 chip and would like to ask for your advice. My current circuit design references the PMP22244 structure. After calculating…
    • Answered

  • UCC28782: A ringing current flows between low side turn-off and high side turn-on

    Resolved
    Part Number: UCC28782 Tool/software: Hello, I have previously made some inquiries in the thread below. I would like to ask a follow-up question regarding question 2 of that inquiry. In your response you pointed out that there is a possibility of self…
    • Resolved
    • Answered

  • UCC28782: FLP-pin and fsw

    Resolved
    Part Number: UCC28782 Tool/software: Hello Experts, My customer has question as follows. Would you answer it, please? 1. FLT-pin The datasheet stated that CFLT can be placed to avoid false OTP trigger from noisy environment. I suppose that OTP will trigger…
    • Resolved

  • UCC28782: Startup delay issue

    TI Thinks Resolved
    Part Number: UCC28782 Tool/software: Hello, My Name Kumar, We have designed a flyback 40W power supply Vin:105Vac to 132Vac, Vout:20.8Vdc@ 2Amp load. I have seen a start up delay issue in my design as below. till 13V it was increasing linearly, after…
    • Answered

  • UCC28782: About RDM settings

    Resolved
    Part Number: UCC28782 Tool/software: Hello, I previously asked a question in the following thread about the problem of startup problems occurring when the RDM constant is set too high. I would like to continue to question you about this issue. I received…
    • Resolved
    • Answered

  • UCC28782: DBUR selection

    Resolved
    Part Number: UCC28782 Tool/software: Hello, Experts, Customer would like to know how to select DBUR. Would you tell how to select it, please? SS115LW RVG can be used?(It is used on EVM, called D3 and D17.) Best Regards, Fujiwara
    • Resolved

  • UCC28782: Clarification on IC Capability for 24–100V Input, 15V Output @ 10–12A (150W).

    TI Thinks Resolved
    Part Number: UCC28782 Other Parts Discussed in Thread: UCC28951-Q1 , , LM5185 Tool/software: Dear Team, I am evaluating the [UCC28782-Q1] for a power supply design and would like to confirm if it can support the following specifications: Input…

  • UCC28782: UCC28782 start-up issue

    Part Number: UCC28782 Other Parts Discussed in Thread: TL431 , ATL431 Hi Team, UCC 28782 Test Questions Asked 1. When AC power on, VDD, Vp13, Vref are normal, as shown in Figure 1. 2. Afterwards, Vs13 wakes up and pulls LOW again, and then periodically…
    • Answered

  • UCC28782: What's the difference between UCC28780 and UCC28782 ?

    Resolved
    Part Number: UCC28782 Other Parts Discussed in Thread: TPA3251 , UCC28780 , , UCC2893 , TL431 I'd like to design about Audio AMP. We will adopt TPA3251 as classD Amp. On the other hand , I will use UCC28780 as Power supply of TPA3251. So would you…
    • Resolved

Didn't find what you are looking for? Post a new question.