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UCC28950: Power management forum

user6004348
Intellectual 390 points
Part Number: UCC28950
Other Parts Discussed in Thread: UCC39002, , UCC29002

HI sir

 pls See attached file

The V1 sense point connection for ucc28950 and ucc39002 is right?

Circuie.docx

  • 0
    TI__Mastermind 25570 points

    Hello User6004348

    It depends on what you are trying to do - are the UCC28950 and UCC29002 part of the same circuit ? Do they share the same ground potential ?

    The +V1Sense connection to the UCC28950 is probably correct - it depends on whether V1 is the output voltage or not.

    I don't know what -V1 sense is -

    The ADJ pin of the UCC29002 should go to a small resistor in the sense line of the module being controlled - this is shown in the data sheet.

    How many modules are you planning to connect together in the current sharing system ?

    If you can send me your complete schematic - or schematics I can give you a better answer.  If you dont'w want to post it here you can send it to me directly at

    colingillmor@ti.com

    Regards

    Colin

  • 0 in reply to Colin Gillmor
    TI__Mastermind 25570 points

    Hi

    Thanks for sending me your schematic. Your connections for the UCC28950 and UCC29002 are correct. I've emailed you some suggestions for a more accurate output voltage sensing.

    I'll leave this thread open for a few more days -

    Regards

    Colin