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LM61495: Use two sets of power supplies to power the uLED

Allen yang
Expert 1105 points
Part Number: LM61495


Hi Team,

A buck converter output 10V/6A

B buck converter output 0.5V/6A

Supply uLED power, as follows

what's issue with this design?

  • 0
    TI__Guru 50120 points

    Hello,

    What is the application for this design?

    From what I am seeing right now if the uLED is powered then the cathode of the uLED would be 10V minus the diode drop. That would cause DC/DC (B) to be yanked higher than the 0.5V and cause it to be out of regulation.

    Regards,

    Jimmy