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UCC25705: UCC25705 fsw external clock Synchronization

Koji Ikeda
Expert 5585 points
Part Number: UCC25705
Other Parts Discussed in Thread: UCC38C42,

Hello Support team,

Could you tell me how UCC25705 support external clock synchronization? I find application example in SLUA257 for UCC38C42 case. Can UCC25705 support with same method?

Thanks,

Koji Ikeda

  • 0
    TI__Mastermind 34465 points
    Hello Ikeda-san,
    The UCC25705 generates the PWM ramp waveform in the same method as the UCC38C42. Therefore you will be able to synchronise both of these PWM controllers with a low Ohmic resistor and SYNC signal as detailed in your drawing above.
    So the answer to your question is yes.
    Regards
    John