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  • UCC28704: UCC28704

    TI Thinks Resolved
    Part Number: UCC28704 Tool/software: Hi, I am planning to use UCC28704 fly back controller for a power supply design with 230VAC as input and 24V and 2 A (48W) as output. When i gave these specification in WEBENCH, got the attached design. As per this…

  • UCC28704: UCC28704 Flyback converter output voltage is not stable, increase with the higher input voltage.

    TI Thinks Resolved
    Part Number: UCC28704 Hi, I am using UCC28704 in my flyback converter circuit. The circuit is designed as per the IC datasheet suggests. My expected output voltage is constant 24V DC and input is 85VAC~265VAC. The output voltage I seeing is 23.39Vdc…

  • UCC28704: Guidance on Improving Efficiency of Current SMPS Design

    TI Thinks Resolved
    Part Number: UCC28704 I am currently working on optimizing the efficiency of an existing SMPS design based on a TI controller, and I would appreciate your guidance in identifying possible improvements. Below are the details of the present design and…

  • UCC28704: Flyback Converter Troubleshooting - No Output Voltage with UCC28704 and Custom Transformer

    Part Number: UCC28704 Tool/software: Hello TI Community, UCC28704 - Calculations.xlsx I’m currently working on a design using the UCC28704 flyback controller to power a battery charger from 230VAC. However, I’m facing an issue where I’m not getting…

  • UCC28704: Power supply or IC to design power supply having 2 outputs (reference design IC UCC28704)

    Part Number: UCC28704 Tool/software: Hi Sir, We looking for a power supply or any IC which we can use to design power supply with following specifications : 1. Input Voltage range: 90 - 528VAC OR 100 - 745VDC 2. Output: O/P1: 5V/1Amp O/P2: 5V/0.2Amp…

  • UCC28704: Design Query

    TI Thinks Resolved
    Part Number: UCC28704 Tool/software: Any recomended part is availabe for the DZ ? used in UCC28704 application note. Thanks Sakthivel

  • UCC28704: Non isolated AC DC power supply

    TI Thinks Resolved
    Part Number: UCC28704 Other Parts Discussed in Thread: TL431 Tool/software: Good morning, everyone. I need to build a non-isolated AC-DC converter with the following characteristics: Input voltage: 240 VAC Variable output voltage: V1 = 110 VDC, V2…

  • UCC28704: Design Query

    TI Thinks Resolved
    Part Number: UCC28704 Tool/software: Hi Team, As we are proceeding with the UCC28704 Flyback converter, we identified that the Zenner Diode placed in the return current part of primary transformer. Which is only available in SLU603B - Design tool calculator…

  • UCC28704: Importing UCC28704 spice model into TINA-TI

    Part Number: UCC28704 Other Parts Discussed in Thread: TINA-TI Hello, I have been trying to import the UCC28704 spice model as a spice macro in TINA-TI. I have been getting the following error while importing. Please provide suggestions. Thanks…
    • Answered

  • UCC28704: UCC28704

    Resolved
    Part Number: UCC28704 Hello, I have designed this UCC28704 AC/DC flyback converter circuit. I am wondering if the return path of the bridge rectifier is correct?. Also, can you help me find a compliant PN for a transformer to be used with the Converter…
    • Resolved

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