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TPS92830-Q1: How to prevent LED flash at startup?

Henry Riley
Prodigy 10 points
Part Number: TPS92830-Q1
Other Parts Discussed in Thread: TPS92623-Q1

Hi, I am using this device to drive an RGB LED. I am not using the internal PWM generator, but providing PWM from a microcontroller. On power-up, the LED flashes white. Is there a way to prevent this from happening? The PWM inputs are low during power-up. Thanks.

  • 0
    TI__Expert 7110 points

    Hi Henry,

    Could you provide the schematic for your application and the test waveforms of SUPPLY, G1/2/3 and so on?

    In addition, what are your detailed application requirements, like current, output voltage, frequence and duty cycle?

    since you are not using the internal PWM generator, if the current is not high, TPS92623-Q1 could be an easy option.

    BR,

    Hailee.