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  • TL4242-Q1: Pin 3 GND circuit opened

    Part Number: TL4242-Q1 Attached is an X-Ray picture of a failed LED Driver (TL4242-Q1) from the top side. We observed that Pin 3 (GND) internal seems to have open circuit which seems to be common problem with past few years of return of more than 150…

  • TL4242: Linear solution

    Part Number: TL4242 dear Sir TL4242 can't be used in our project ,due the package size is big 1. We would like to find 3x3mm solution without choke 2. Led current could be modify by resistor 3. Iout small than 50mA 4. linear structure but can use…
    • Answered

  • TL4242: What does "constant current" mean?

    Resolved
    Part Number: TL4242 TL4242 is a constant current LED driver IC. I am confused by the "Constant Current". If there is a PWM input at Pin1, then the output Pin6 is PWM? If there is a shunt resistor at Pin 4, this pin is also PWM? How does TL4242…
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    • Answered

  • Could you tell me about TL4242 ?

    Resolved
    Other Parts Discussed in Thread: TL4242 , TPS22910A Hello. My customer is currently in using TL4242,now. I have gotten a question about this product . So, please teach me about TL4242. ＜Question＞ Is there a method to keep the 10usec(max) in this product…
    • Resolved

  • TL4242-Q1 current accuracy

    Hello, Could you please let me know the current accuracy on the following conditions? VI=4.5V LED 1 pc Vf =2.7~3.4V Iled=300mA Best Regards Ryuji
    • Answered

  • TL4242 - the maximum PWM frequnecy

    Resolved
    Other Parts Discussed in Thread: TL4242 Hi all Would you mind if we ask TL4242? How much is the maximum PWM frequnecy? Is it 1/Delay time turn on/off = 25kHz? Kind regards, Hirotaka Matsumoto
    • Resolved

  • TL4242 ST pin

    Hi I have a question about ST pin. Is that possible to left open if ST pin is not used? Regards, Koji Hamamoto
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  • TL4242 PWM SPEC

    Resolved
    Other Parts Discussed in Thread: TL4242 Dear Sir Below is MIC4802’s Dimming SPEC 200Hz~500KHz ,How about TL4242?? Does TI have any Duty vs LED current curve ?? Thanks
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  • TL4242-Q1 - ST pin for overtemperature

    Other Parts Discussed in Thread: TL4242-Q1 Hello, According to the datasheet page 8, the status pin provides information of open load, overtemperature protection. Could you please let me know the behavior of ovetemperature detect / report? If junction temperature…
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  • TL4242 Vdr

    Resolved
    Vdr Specified at datasheet,when Iq=300mA. How much is Vdr(max),when it using Iq=220mA,250mA? Best regards, Noda
    • Resolved

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