• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 404 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCC28019A: Choosing the right part for PCF to power a 350W to 750W BLDC

Tomer Bruchiel
Intellectual 640 points
Part Number: UCC28019A
Other Parts Discussed in Thread: UCC2818A, UCC28180

Hi,

This is my first time designing AC to DC converters, especially in the high power domain.

The end application will be a grinder and the main motor will be a BLDC in the the range of 350W to 750W and the DC voltage will be around 350V to 400V, apart from an isolated second stage to feed a lower 3.3V logic.

I learned about CCM and CrCM and saw that the suggested solutions for this power range are either 1 phase CCM or interleaving CrCM.

I saw this part UCC28019A and it looks subtitle for my application.

My questions are, since I am way far from my comfort zone:

1. This part does not state that it will meet regulatory standards like EMC restrictions and specifically the IEC-6100-3-2, will it do? (I know I will need to create an input filter).

2. I saw many more parts that work with the same CCM technique but are much more expensive - I don't understand the differences. For example why is this part UCC2818A better (or what different about it).

Thanks,

Tomer

  • 0
    TI__Genius 11350 points

    Hi Tomer,

    Thank you for your interest in the UCC28019A.  That does fit nicely in the power range you highlighted.  The UCC28180 is also a popular product at that power level.

    1. Yes, it will meet IEC-61000-3-2.  Note section 7.1 (p10) and 8.1 (p20) in the datasheet where it is mentioned specifically.

    2. There are factors other than performance that can impact the pricing of certain components within the same family. Some of it is packaging costs, the silicon technology used, manufacturing efficiencies, etc.  TI prices each component as competitively as possible.  So a less expensive part does not necessarily mean lower performance.  The UCC28019A is a very popular product which meets many customer PFC requirements in a simple 8-pin package.

    Here is a BLDC reference design which uses the UCC28180 which is different than the UCC28019A in that it has programmable frequency as well as audible noise reduction: https://www.ti.com/tool/TIDA-00652

    Let me know if you have further questions.

    Ray

  • 0 in reply to Ray DiCecco
    Intellectual 640 points

    Thank you Ray,

    I think you answered my question perfectly.

    For now I do not have any other questions, probably will have once I'll be deep into the design.

    Thanks again,

    Tomer