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Showing 18 results View by: Thread Post Sort by
    Answered
  • LP5864: Close the broadcast of LP5864

    Li lefty
    Li lefty
    Resolved
    Part Number: LP5864 Tool/software: Hi teams: The problem now is that there are two ways to define the slave address of LP5864: independent and broadcast. However, there is now a problem where I suspect that the slave address of my other I2C peripheral…
    • Resolved
    • 8 months ago
    • Power management
    • Power management forum
  • LP5864: What is the frequency of the multiplexer/SW-lines

    jan stappers
    jan stappers
    TI Thinks Resolved
    Part Number: LP5864 Hello, I understand that the LP5864 uses multiplexing to drive the different channels. But I don't see it specified in the datasheet what the frequency of this switching is and how much on-time an led gets during one full cycle.…
    • 1 month ago
    • Power management
    • Power management forum
  • Answered
  • LP5864: Clarification of IAVE and IOUTx

    Christoph Hauzeneder
    Christoph Hauzeneder
    Resolved
    Part Number: LP5864 Tool/software: Hello, the datasheet of the LED matrix driver defines for the parameters "Device to device current error" and "Channel to channel current error" two equations. The content of these equations is not described at the…
    • Resolved
    • 6 months ago
    • Power management
    • Power management forum
  • Answered
  • LP5864: LP5864

    Ehsan Sharifian
    Ehsan Sharifian
    Resolved
    Part Number: LP5864 Hi, I have the following questions: 1- Is VIO_EN active high? 2- Can VSYNC be left floating, when exclusively MODE1 is used? Thanks in advance.
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • LP5864: Power management forum

    ? ??
    ? ??
    TI Thinks Resolved
    Part Number: LP5864 Tool/software: I design a circuit that drives LED with LP5864. There are 46 LEDs in my circuit. LP5864 can drive 4 scan lines with 18 current sinks. But I want to drive 3 scan lines with 16 current sinks. so, I can drive 48…
    • over 1 year ago
    • Power management
    • Power management forum
  • LP5864: Mode selection and VSYNC input

    Jerome Marty
    Jerome Marty
    TI Thinks Resolved
    Part Number: LP5864 Tool/software: In datasheet, the mode selection (Data_Ref_Mode field in Dev_initial register) is not detailed (value vs mode). Could you help me? At power on, Dev_initial default value is 5Eh. Does this mean that mode 3 is selected…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • LP5864: minimum setup for Test

    Jos Terra
    Jos Terra
    Resolved
    Part Number: LP5864 Hello, I'm currently trying to light up a LED (L0-CS0) (150060AS75000 from wurth) with the LP5864 to validate a circuit. But i currently get no results. I did try to find some example code for C, but could not find any. I'm trying…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • LP5864: Short Detection

    Kai Penner
    Kai Penner
    TI Thinks Resolved
    Part Number: LP5864 Other Parts Discussed in Thread: TCA8418E Hello, in a few circuits I used an AS1115 for LED control and key readback for mechanical switches. In future we do not want to use this device anymore and one of my colleagues suggested…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • LP5864: About Register Maps

    emily cad
    emily cad
    Resolved
    Part Number: LP5864 Hello, I'm using the LP5864 in a custom board and I have some question regarding how to handle the software of the driver. In fact in the register maps it's mentioned " Dot Lx- CSx onoff" the CSx are clearly the channels but what…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • LP5864: Chip initialisation für 8 bit PWM LED driving

    Michael Cerbe
    Michael Cerbe
    Resolved
    Part Number: LP5864 Hello, we prepared a LED- illumination board with the LP5864 and 4x 5 RGB- LEDs (4x 15 lines) and want to drive the LEDs via 8bit PWM. We have access to the register area via I2C e.g. read "Dev_initial" = 5Eh. Can you give me an…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
>

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