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TPS92620-Q1: Need having two function together for both strobe and dimming. How can implement it at the part TPS92620-Q1?

Alpha Ting
Intellectual 550 points
Part Number: TPS92620-Q1

Hi,

 Could the part TPS92620-Q1 have the strobe and dimming together. The dimming level is based on external ALS sensor.

All the purpose is to reduce the IR-LED current consumption.

thanks.

Alpha

  • 0
    TI__Genius 10120 points

    Hi Alpha,

    Could you share more details about this application, especially about sensor and IR-LED?

    BR,

    Hailee.

  • 0 in reply to Hailee Xu
    Intellectual 550 points

    The IR-LED is flashing and controlled by the camera sensor strobe pin to synchronized the camera exposure time. For day and night application, the SOC will get the light information from ALS then to adjust the IR-LED brightness. It is two features requiring at the same time strobe and adjusting the IRLED current.

  • 0 in reply to Alpha Ting
    TI__Genius 10120 points

    Hi Alpha,

    In my understanding, you might need two dimming features.

    for better recommendation, would you mind providing details as below?

    Q1. The background of this application, in DMS system?

    Q2. The range (including max and min value) of output current and voltage.

    Q3. The required frequency and duty cycle range (including max and min value) of dimming.

    BR,

    Hailee.