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  • UCC2808A-1: Question about FB terminal

    TI Thinks Resolved
    Part Number: UCC2808A-1 Hello, I am an FAE at a distributor of TI products. I received the following question from my customer regarding the UCC2808A-1. This is a question regarding the FB terminal. Looking at the block diagram in the datasheet, the…
    • Answered

  • UCC2808A-1: stuck at 50% duty cycle

    Resolved
    Part Number: UCC2808A-1 Hi Everyone, I'm using the UCC2808A as a half-bridge controller on the secondary side with an isolated gate driver to transfer the signal to the primary side. The problem is that OUTB gets stuck at 50% duty cycle (minus dead…
    • Resolved
    • Answered

  • UCC2808A-1: Setting the constants of a push-pull circuit

    Resolved
    Part Number: UCC2808A-1 Other Parts Discussed in Thread: UCC28083 Hello, I am currently considering setting constants for my circuit specifications based on the attached diagram in the datasheet. (Question 1) I'm considering changing the primary side…
    • Resolved
    • Answered

  • UCC2808A-1: Secondary-side synchronous rectification controller

    Resolved
    Part Number: UCC2808A-1 Other Parts Discussed in Thread: UCC24610 , UCC24630 , UCC24624 , UCC24612 , UCC24610EVM-563 , UCC24636 , UCC24630EVM-636 , UCC38083 Hello, I am considering a push-pull circuit using the UCC2808A with the following specifications…
    • Resolved

  • UCC2808A-1: Can I use a -2, where the under voltage lock out is at 4.3/4.1 vs 12.5/8.3

    TI Thinks Resolved
    Part Number: UCC2808A-1 Can I use a UCCx808A-2 instead of a I use a UCCx808A-1, where the under voltage lock out is at 4.3/4.1 vs 12.5/8.3 ? the -1 is obsolete. I dont have time to do a new layout with the new SOIC (D) 8 footprint for the active -1 part…

  • UCC2808A-1: Specification differences vs UCC2808-1

    TI Thinks Resolved
    Part Number: UCC2808A-1 Other Parts Discussed in Thread: UCC2808-1 Can you comment on the following questions: 1) OUTA/OUTB Source Current: The UCC2808 lists -0.5A as a minimum whereas the UCC2808A lists -0.5A as a maximum. Is this an error? Should…

  • UCC2808A-1: UCC2808AQDR-2EP marking

    TI Thinks Resolved
    Part Number: UCC2808A-1 Hi The physical marking of this product is UCC2808, but according to the datasheet, there are UCC2808A-2EPH and UCC2808, please confirm why there are two different marking information? T hank you

  • UCC2808A-1: UCC2808

    TI Thinks Resolved
    Part Number: UCC2808A-1 Hi I saw the typical application from datasheet of UCC2808AD-2，so can anyone help to explain below: Q1: what is ① used for ? Q2：why add an inductor connected to GND as noted with ② ? thanks

  • UCC2808A-1: Open Loop Configuration

    TI Thinks Resolved
    Part Number: UCC2808A-1 Other Parts Discussed in Thread: UCC28083 Is UCC2808A or UCC28083 able to be configurated with open loop control? It means there is no feedback from output voltage, in stead it's used a fixed voltage supply to CTRL pin. if so…

  • UCC2808A-1: half-bridge forward converter power-up issue when dry

    TI Thinks Resolved
    Part Number: UCC2808A-1 Other Parts Discussed in Thread: UCC3808-1 , TL431 Hello, I would appreciate if somebody could help me fixing a problem affecting an old design initially based on an UCC3808-1 and now using an UCC2808A-1. Regards Gilles …

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