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0.5W LED dirver

kent gu
Intellectual 685 points
Other Parts Discussed in Thread: LM3405, LM3410

Hi,

#1, I want to drive 0.5W LED, input is 3~5V DC, the LED just be controlled on or off. Is there any solution for the application?

#2, I noticed the TPS6165, but I am not sure about PWM control mode. When the chip work on PWM mode, if ctrl pin is high(simulate the duty is 100%)  to light LED, the ctrl pin is low to shutdown LED.

Best regards,

Kent

  • 0
    TI__Expert 3920 points
    Hi Kent,

    Depends on your LED voltage higher than or lower than the input voltage, we have LM3405 for buck and LM3410 for boost.
    Both of them are N-FET integrated, with PWM dimming input and have 6-pin SOT package option for minimizing board area.

    May I understand more about your technical requirements and end application, e.g. LED voltage, no. of LED used, LED current, etc.?

    Thank you!