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Synchronizing two LM5175

Miroslaw Sadowski
Expert 3140 points
Other Parts Discussed in Thread: LM5175

Hello

What is the best way to synchronize frequency of  two lm5175 controllers? The best if one from another.

Regards

Miro

AFAE

  • 0
    TI__Genius 11490 points

    Hi Miroslaw,

    The best way is to use an external synchronization source and ac-couple to the RT pins of the LM5175s. The external synchronization frequency should be 110% or higher of the RT programmed setting.

    Another way could be to use the drive or SW pins to generate SYNC out. It is complicated by the fact that the switching pattern in buck, boost, and buck-boost are different.

    Thanks and regards,

    Vijay