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TPS92692: Open LED Fault

Josnei Silva
Prodigy 160 points
Part Number: TPS92692

How do i detect open circuit in ci tps92692

  • 0
    TI__Mastermind 18890 points
    Hi Josnei,

    By setting the Over-Voltage protection to be about 3-5V higher than what your LED load requirement is this is how it detects open circuit. If you do not have a load the output voltage will ramp up but since there is no current feedback (open circuit), the voltage will continue to rise until it hit the over-voltage setting then it would shut down.

    Please read section 8.3.14 for this.

    Thanks Tuan