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  • TLC5940 high current at all channels

    TI Thinks Resolved
    Part Number: TLC5940 Dear TI-Team, for my LED circuit I have 122 LEDs individually addressable by using 8 TLC5940 (RHBR). With an IRef sink current ist set to 100mA for each LED. Whats the right voltage to power LEDs and have as few power left to dissipate…
    • Answered

  • TLC5940: TLC5940 LED driver

    Resolved
    Part Number: TLC5940 I need help from experts. We use TLC5940 fro LED driver and have 2 questions: 1. The customer gave us a TLC5940 reference design: The TLC5940 OUTx connects LED through a serial resistor. And we follow their design. As I know the constant…
    • Resolved

  • TLC59116: Does TLC5940 can be considered replacement?

    Part Number: TLC59116 Other Parts Discussed in Thread: TLC5940 , Hi Experts, Would like to ask your confirmation if the part TLC5940 can be considered drop-in replacement for TLC59116. Any changes to need be adjusted here? Please help me confirm their d…

  • TLC5940: Doesn`t have output

    Part Number: TLC5940 We are using TLC5940 for PWM output, but now out0 - out 15 doesn`t have PWM output,we are using pin BLANK,DCPRG,XLAT,SIN,GSCLK. After upload program to chip, we test output pin with oscilloscope, chip will become heat, the voltage of…

  • TLC5940: TLC5940 defect during permanent test.

    TI Thinks Resolved
    Part Number: TLC5940 I developed an HW based on TLC5940 which is connected to a µC. It was for 3 days on a permanent test and it worked without any problem. The signal level was also ok at the start of the test. 3 Day later, out of 27 boards, 3 are…
    • Answered

  • TLC5940: Short flash of LEDs during power-up

    Resolved
    Part Number: TLC5940 Hi! The TLC5940 is power by a 5V domain for VCC and the BLANK signal have a pull-up to 5V. To prevent random channel turn-on, BLANK should be pulled high firstly. For this reason I have a pull-up to the 5V. The LED:s are powered by…
    • Resolved

  • TLC5940: Power on details

    TI Thinks Resolved
    Part Number: TLC5940 Other Parts Discussed in Thread: TLC5944 , Hi team, Can you answer the following customer question please? Unfortunately, the data sheet of the TLC5940 does not provide very detailed information about the Power-ON behavior. For the…

  • TLC5940: Powering the TLC5940 some LED goes on while some are off.

    TI Thinks Resolved
    Part Number: TLC5940 Hallo, I have made a designed base on a daisy chain of 15 TLC5940. The project is working since about 1 years whitout problem. But today when I power on the board, it happens that one LED was on and the remainder was off which has…

  • TLC5940: Software library for stm32cube IDE

    TI Thinks Resolved
    Part Number: TLC5940 Hello, I’m a student from KU-Leuven university in Belgium and for a project I use 3 TLC5940's to drive a 16x16 RGB Led matrix. I want to use the STM32CUBE IDE to write the software. Now because my software skills are not…

  • TLC5940: On the cascaded chain of TLC5940, it happens that ein IC does receive signal but does not transfer it out.

    TI Thinks Resolved
    Part Number: TLC5940 Hi, I have developped my board based on TLC5940 as you can in the joined picture. I have cascaded 15 of this IC. having finishe the development I order the board and start doing some Test. It happen out of the 10 board that I order…

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