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  • LM3410: Physical disconnection high and return/feedback side connections

    TI Thinks Resolved
    Part Number: LM3410 Hey Ti Folks, I'm working on a design that is a bit unique. Right now, we have the LM3410 situated on an MLB. There are several strings of LEDs in parallel. Half of those strings can be physically disconnected as part of the design…
    • Answered

  • LM3410: Flash driver pulse duration

    Resolved
    Part Number: LM3410 Other Parts Discussed in Thread: PMP15027 Hello We are planning to use LM3410X as a flash driver in our design. For this we are following the circuit provided in datasheet in section 8.2.10 which shows 1.5A flash for 7.5V LED…
    • Resolved

  • LM3410-Q1: Automotive input voltage range (up to 18vdc)

    TI Thinks Resolved
    Part Number: LM3410-Q1 Other Parts Discussed in Thread: LM3410 In the datasheet there is an app note on working with voltages above Vin. I only see notes on 9-14v, but it is not clear what the limits of this is and if sustained voltages up to 18v would…
    • Answered

  • LM3410: Calculating delta-IL and delta-Vout

    Resolved
    Part Number: LM3410 Hello, I'm looking to use the LM3410 to drive a string of LEDs (the normal ones, 20ma, 3.2V, about 5 to 6 of them) from a 3.3V power source (it'll be eventually a LiPo battery). I've kind of gotten it working but struggle with…
    • Resolved

  • RE: LM3410: High power LED driver selection

    I have not heard back from you so I believe you may have solved the issue. The thread will close now but will reopen if you reply.
    • Answered

  • LM3410: Stability issue

    Resolved
    Part Number: LM3410 Hello, While VIN=5.0V~5.5V, the output current happen ringing phenomenon. Under 5V, there is no ringing phenomenon. Have any comments for this issue? Thank you, BR Patrick
    • Resolved

  • LM3410: PWM frequency variation on DIM pin of the regulator

    TI Thinks Resolved
    Part Number: LM3410 Hi, Currently i am using LM3410XQMF/NOPB regulator for LCD backlight driver This regulator has a DIM pin for which we have connected PWM signal to control the brightness of the LCD.In the datasheet paragraph 7.3.2 Dim Pin and Shutdown…

  • LM3410-Q1: pwm dimming

    TI Thinks Resolved
    Part Number: LM3410-Q1 Other Parts Discussed in Thread: LM3410 Hi~ Customer is under design with LM3410-Q1, but PWM dimming can't implement like datasheet. Channel current is 540mA, LED Vf is 9.1V(3S). Due to high channel current, PWM off duty can…

  • LM3410-Q1: DIM Frequency and Duty Cycle vs Average ILED Issue

    TI Thinks Resolved
    Part Number: LM3410-Q1 Good day, I'm working on an automotive application using the LM3410X for powering 4x IR LED's in series. VIN is at 5V while the total forward voltage is at about 6.4V. We have the current limit set at about 500mA. Our…

  • LM3410: How to compute Delta Il?

    TI Thinks Resolved
    Part Number: LM3410 Hi, in lm3410 datasheet, page 12, equation 3 states: Delta Il = (Vin / 2L) * D * Ts in application note SLVA372C.pdf page 6 equation 15 : Delta Il = Vin * D / (Fs * L) as Ts = 1/ Fs, there's a factor 2 in those equations…

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