• State TI Thinks Resolved
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 21 views
  • Users 0 members are here
Support feedback
Options
Options
Related

UCC28C44-Q1: Seeking a Methodical Approach for SMPS Component Selection Beyond Datasheet Examples

Hüseyin Umut Aydın
Prodigy 10 points
Part Number: UCC28C44-Q1

Tool/software:

Hello,

I'm an electrical engineering student actively working on improving my skills in SMPS design through personal projects. I'm trying to move beyond just using automated design tools and learn the fundamental, step-by-step process of designing a power supply from the ground up.

I have a question about the design phase that comes after the initial topology and controller IC selection.

I've chosen a DC-DC Flyback topology and a specific controller IC, UCC28C44-Q1. My goal is to design for a custom set of requirements ( Vin​=36-48V, Vout​=5V, Iout​=5A), which is different from the standard 'Typical Application' circuit shown in the datasheet.

I'm aware of tools like TI's WEBENCH, which are fantastic for getting a starting point. However, my goal is to truly understand why those specific components were chosen so I can make those engineering decisions myself.

Any guidance, rules of thumb, or recommended resources (like specific application notes, book chapters, or video tutorials) that explain this practical design process would be incredibly helpful.

Thank you for sharing your time and experience!

  • 0
    TI__Intellectual 810 points

    Hi Hüseyin,
    You're asking a great question. I was in a similar situation a few months ago, before joining TI. I can share what I learned from talking to some experienced people. To start, it's really important to understand the parts you're working with. Read the datasheet carefully, then visit the TI website and look at the "Design & Development" section for that part. Most parts have an evaluation module (EVM) and a user guide there in that section. Next, find the EVM's schematic on user guide and try to understand why each part is used. You can also check the datasheet for each new part and learn more. The TI website also has helpful application notes in the "Technical Documentation" section relevant to the part. If you need help, you can ask on the E2E forum - TI engineers are here to assist you!

    Thank you.

    Good luck!

    Best regards,

    Adhvaidh