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Showing 13 results View by: Thread Post Sort by
  • ElectronicAdept
    ElectronicAdept
    • 1 month ago
    • Power management
    • Power management forum

    UCC2808A-2: Trouble with PWM duty cycles

    TI Thinks Resolved
    Part Number: UCC2808A-2 Hi Dear Support! I'm trying to run the device from WEBENCH designer, here's the link: webench.ti.com/.../SDP.cgi COPY The problem is UCC2808A-2 is not reacting for changes of Vin and (or) Vout. I have tested...
  • ElectronicAdept
    ElectronicAdept
    • 1 month ago
    • Power management
    • Power management forum

    RE: WEBENCH® Tools/UCC2808A-2: Push-Pull: Issues with MOSFET's gates

    Hi, Could you please guide me how it must be done? Here is Ns1 and Ns2 in comparision to Np, while I have 2 primary windings. It means Ns1/Np1 = 1.905 and Ns2/Np2 = 1.905 or secondray windings turns must be in proper ratio to whole primary winding...
  • Peter Meaney
    Peter Meaney
    • 10 months ago
    • Power management
    • Power management forum

    RE: UCC2808-2: Wrong information in UCC2808 PDF?

    Hi Choi, Thanks for bringing this to our attention. The last line in the table should be UCC2808A-2. We will add this to the documentation queue to update the datasheet. Regards Peter
  • Satoshi
    Satoshi
    • over 2 years ago
    • Power management
    • Power management forum

    UCC2808A-2: Power Dissipation Calculation

    TI Thinks Resolved
    Part Number: UCC2808A-2 Please let me know about how to calculate power dissipation for UCC2808A-2 or the other Push-Pull PWM. If there better that available application note or calculation tool. Best regards, Satoshi
  • Teng Feng
    Teng Feng
    • over 1 year ago
    • Power management
    • Power management forum

    RE: UCC28C41-Q1: dc-dc

    Hello, For your requested power spec, push-pull converter is recommended, you can choose IC controller UCC2808A-2. Regards, Teng
  • John Griffin1
    John Griffin1
    • over 1 year ago
    • Power management
    • Power management forum

    RE: LM5030: LM5030 push pull step up

    Hello Watchaphong, You could use the LM5030 for such an application however 100kHz is below the minimum operating oscillator frequency of the ic. You should consider using the UCC2808A-1 or the UCC2808A-2 which is another push pull controller and...
  • user3812683
    user3812683
    • over 4 years ago
    • Power management
    • Power management forum

    UCC2808A-2: UCC2808A-2 error amplifier open loop gain test

    Part Number: UCC2808A-2 Hi, My problem is ucc2808a2's error amplifier open loop gain test. Somewhere between 0.35 and 1.2 volts on the COMP pin. you will start to get pulses. at the comp voltage increases the pulse widths will get larger. Beacuse...
  • Wangxin Huang
    Wangxin Huang
    • over 3 years ago
    • Power management
    • Power management forum

    RE: UCC2808-2: Repeated fault analysis

    Hi Alon, It meant ambient temp rather than junction temp. 87C Ambient temp exceed max recommended operating range of UCC2808-2. Can you lower the ambient temp to see where the part starts switching? For the UCC2808A-2Q1, I compared it against UCC2808A...
  • Rafeeq MUHAMMED
    Rafeeq MUHAMMED
    • 5 months ago
    • Power management
    • Power management forum

    RE: UCC28950: UNABLE TO use design tool for spec. SLUC222D (PSFB) ( UCC28950 Excel design Tool),

    Dear Colin, thank you for reply, 1) what is "Transformer inductance" & "Inductance" marked RED color (my earlier screenshot) ? 2) Can you give a quick comparison about UCC2808A & LM5033 which is more suitable for me ...
  • Hirotsugu Kobayashi
    Hirotsugu Kobayashi
    • over 4 years ago
    • Power management
    • Power management forum

    UCC2808A-1: UCC2808A Wide Input Range

    • Resolved
    Part Number: UCC2808A -1 Is it possible to achieve a circuit of Fig. 2 of ucc2808 data seat
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