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Flicker Free LED driver

Takahiro Nishizawa
Genius 5575 points
Other Parts Discussed in Thread: TPS61165

I am looking for Flicker Free LED driver for backlight.

Our Customers place importance on reducing flicker.

Please tell me the the best LED driver for  reducing flicker.

       Vin=5V

       Vout=About 30V

　  1 series   7~8 lights

Best regards,

Takahiro Nishizawa

  • 0
    TI__Expert 4550 points
    Hi Takahiro,
    If you are looking for backlight driver, I'd like to know more information about your requirement and promote the most suitable one. What is your LED current? do you need dimming? what dimming type do you need? What end equipment is this LED driver will be used?
  • 0 in reply to Caryss Li
    Genius 5575 points
    Caryss-san


    Thank you for your mail.

    Iout=50~100mA
    we need Dimming.
    Customers use PWM dimming now.but, they are anxious about flicker when they use PWM dimming.
    If flicker diminishes, they do not care about the method of dimming.
    For example, PWM and Analog and so on.
    Application is refrigerator.

    Best regards,


    Takahiro Nishizawa
  • 0 in reply to Takahiro Nishizawa
    TI__Expert 4550 points
    Hi Takahiro,
    From your input, you could look at TPS61165. It is easy to use and support PWM dimming and could dim dowm to 1%. You could use in higher PWM frequency such as 20Khz, that would benifit for component size and also good for ripple voltage. Use 10uH inductor for smaller ripple and higher efficiency.