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Forum: LITIX - Automotive LED Driver IC forum

LITIX™ automotive LED driver ICs are the best solution to benefit from the advantages of LEDs providing full protection to your lighting application in automotive, e.g. for LED Front Lighting or LED Rear Lighting.
Raise your questions about LITIX products here.

  1. Can your H-bridge drivers be operated with less than four MOSFETs in pure buck mode?

    Can your H-bridge drivers be operated with less than four MOSFETs in pure buck mode?

    Started by gustavo‎, Jan 19th, 2021 10:05 AM
    • Replies: 1
    • Views: 99
    Jan 20th, 2021, 01:19 AM Go to last post
  2. Can the TLD1114-1EP be dimmed with an external PWM signal without external MOSFET?

    Can the TLD1114-1EP be dimmed with an external PWM signal (on PWMI/EN/IN_SET pin) when the Power shift feature is used without external MOSFET?

    Started by O_Barrera‎, Jan 18th, 2021 05:59 AM
    • Replies: 1
    • Views: 86
    Jan 18th, 2021, 07:04 AM Go to last post
  3. Do LITIX™ Basic / Basic+ products require external Reverse Polarity Protection Diodes

    According to the datasheet of LITIX™ Basic/Basic+ devices the reverse protection should be integrated in the devices. So do we not need to place any...

    Started by O_Barrera‎, Jan 18th, 2021 05:46 AM
    • Replies: 1
    • Views: 62
    Jan 18th, 2021, 07:00 AM Go to last post
  4. How can I be sure that the transmission error bit TER is safely detected?

    I'm concerned about an identical identification of a TER message with a read back of a register command. Could there be a mix match between STD...

    Started by gustavo‎, Jan 14th, 2021 04:41 AM
    • Replies: 1
    • Views: 126
    Jan 14th, 2021, 05:02 AM Go to last post
  5. Can we connect the D-pin of multiple LITIX™ Basic+ ICs to only one capacitor?

    When several LITIX™ Basic+ ICs are used to realize one function e.g. Stop, is it possible to use only one capacitor for all D-pins in order to set...

    Started by O_Barrera‎, Dec 17th, 2020 01:17 AM
    • Replies: 1
    • Views: 646
    Dec 21st, 2020, 02:04 AM Go to last post
  6. Question display backlight with a LITIX Power DC-DC boost controller

    Hello all, I'm new in this forum and I hope someone will help me on this topic... I'm realizing a display backlight with TLD5099EP. In the...

    Started by Jacky-Guo‎, Dec 8th, 2020 02:52 AM
    • Replies: 1
    • Views: 622
    Dec 9th, 2020, 02:39 PM Go to last post
  7. Can PWM and ST pins of 2x TLE4242G be connected directly for N-1 functionality?

    If one TLE4242G shows a fail, also the other shall fail. Is there the risk that the circuit latches?

    Started by amadeus‎, Nov 30th, 2020 01:01 AM
    • Replies: 1
    • Views: 394
    Dec 1st, 2020, 12:40 AM Go to last post
  8. When does TLD5099EP (or TLD5098EP) detect a short to ground failure?

    How are the conditions at the pins VFBL and VFBH?

    Started by rudolfo‎, Nov 25th, 2020 05:13 AM
    • Replies: 1
    • Views: 271
    Nov 25th, 2020, 07:53 AM Go to last post
  9. the technical trend of Automotive lighting

    can anyone share insights on technical trend of automotive lighting? what is the rough share of lighting in the total cost of a car averagely?

    Started by crystal rao‎, Nov 19th, 2020 07:30 PM
    • Replies: 0
    • Views: 219
    Nov 19th, 2020, 07:30 PM Go to last post
  10. How to manage LED voltages above 60V in boost-to-ground topology with TLD5099EP

    The LED voltage is limited by the pins FBH and FBL (absolute maximum rating is 61 V). There are two options if higher voltages than 60V are required:...

    Started by LED-Peter‎, Nov 19th, 2020 09:03 AM
    • Replies: 0
    • Views: 222
    Nov 19th, 2020, 09:03 AM Go to last post
  11. How to calibrate LED currents with TLD5501-2?

    Current calibration procedure: • Power the load with a low analog dimming value (for example 10%) • Set PWMI1,2 = LOW and disconnect the load at...

    Started by LED-Peter‎, Nov 19th, 2020 08:57 AM
    • Replies: 0
    • Views: 202
    Nov 19th, 2020, 08:57 AM Go to last post
  12. How many LITIX™ BASIC+ LED drivers can be used for one function to meet <10 mA fault

    In total you can use up to 11 LITIX™ BASIC+ LED driver devices for one function on the same ERRN bus. Rationale: Referring to the ECs...

    Started by LED-Peter‎, Nov 19th, 2020 08:04 AM
    • Replies: 0
    • Views: 303
    Nov 19th, 2020, 08:04 AM Go to last post
  13. Why do your linear current sources not always switch on with a resistive load?

    e.g. when connecting 50 Ohm to the output instead of LEDs

    Started by LED-Peter‎, Nov 19th, 2020 06:51 AM
    • Replies: 1
    • Views: 234
    Nov 19th, 2020, 06:53 AM Go to last post
  14. How to avoid LED flicker when having input undervoltage?

    e.g. when using one of the boost controllers like TLD5099EP.

    Started by LED-Peter‎, Nov 19th, 2020 06:35 AM
    • Replies: 1
    • Views: 263
    Nov 19th, 2020, 06:35 AM Go to last post
  15. How are waveforms during TLD5542-1QV fast discharge phase?

    The TLD5542-1QV has a fast discharge feature that allows to quickly discharge the output capacitor. During a fast discharge phase the ouput capacitor...

    Started by LED-Peter‎, Nov 19th, 2020 06:16 AM
    • Replies: 0
    • Views: 198
    Nov 19th, 2020, 06:16 AM Go to last post
  16. How to implement a custom thermal derating feature with LITIX™ Basic+?

    An external temperature derating can be achieved by placing a PTC type resistor at the IN_SET pin. A short trace length (few cm) to place the PTC...

    Started by LED-Peter‎, Nov 18th, 2020 03:43 AM
    • Replies: 0
    • Views: 265
    Nov 18th, 2020, 03:43 AM Go to last post
  17. Can I use LITIX POWER LED drivers when applying PWM via switched power lines?

    Yes, LITIX Power products can be used when the power lines are being switched. Please consider that the enable pin EN / PWMI receives the correct...

    Started by LED-Peter‎, Nov 17th, 2020 09:14 AM
    • Replies: 0
    • Views: 201
    Nov 17th, 2020, 09:14 AM Go to last post
  18. What is the recommended capacitive OUT filtering for LITIX Basic products?

    For all LITIX Basic variants with "Open Load" detection functions the following recommendation applies: LITIX Basic ICs with integrated Open Load...

    Started by LED-Peter‎, Nov 17th, 2020 03:23 AM
    • Replies: 0
    • Views: 204
    Nov 17th, 2020, 03:23 AM Go to last post
  19. How to power up DC-DC converters with TLD509x boost control ICs?

    What needs to be considered? Why may my DC-DC converter not start up?

    Started by LED-Peter‎, Nov 16th, 2020 10:15 AM
    • Replies: 1
    • Views: 256
    Nov 16th, 2020, 10:18 AM Go to last post
  20. How to do special error handling with multiple LITIX™ Basic+ devices?

    How to implement unidirectional error bus diagnosis for a combine tail/stop light?

    Started by LED-Peter‎, Nov 16th, 2020 07:19 AM
    • Replies: 1
    • Views: 313
    Nov 16th, 2020, 07:31 AM Go to last post

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