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  • LP3943: tolerance in frequency

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    Part Number: LP3943 Other Parts Discussed in Thread: LP5861 , LP5018 Hi Team can you please help: We use the LED driver LP3943. Here we have noticed two things during the commissioning measurement 1. in the upper frequency range fine frequency changes are…
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  • LP3943: unused LED channels design recommendation EMI/ESD

    Resolved
    Part Number: LP3943 Hello Team, what is the recommendation for unused LED channels design and configuration wise. As I understood the open drain inputs/outputs can be left floating when they are turned OFF? Thank you Jan
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  • LP3943: LP3943 led resistance selection

    Resolved
    Part Number: LP3943 Hi Experts, I am writing to know how to select these resistance (the red mark on the below picture). Is there any consideration in the selection of resistance? Thank you for the help.
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  • LP3943: Individual LED intensity programmability

    Resolved
    Part Number: LP3943 Hello, I would like to confirm, is it possible to individually vary the LED intensity with the LP3943 and could that be controlled through software? I would like to clarify how to control LED brightness per channel, thank you!
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  • LP3943: Understanding LED Vih

    Resolved
    Part Number: LP3943 Hello, I want to drive RGB and white LEDs using an I2C driver. I have read the datasheet of LP3943 and i don't understand the meaning of the LED Vih min = 2V. It means that the voltage on LED port must be always greater than 2V?…
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  • LP3943SW-LINUX: LP3943: synchronize the periodic blinking of all LEDs

    Resolved
    Part Number: LP3943SW-LINUX Other Parts Discussed in Thread: LP3943 , LP5012 Hi all, We control the 10 LEDs with LP3943. Our customer wants to set all LEDs to blink periodically at the same time. But, if set for each LED, all the LEDs may not blink at the…
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  • RE: LP3943SW-LINUX: LP3943 LEDs controlled by PWM

    Hi Chris, if can't 'i2cset' registers, we can't turn on/off the three LEDs connected to channels0,1,2 individually. The PWM control function of LP3943 only support to control 2 LED on/off individually at most. Maybe you can consider using…
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  • LP3943: Current setting resolution and minimum

    Resolved
    Part Number: LP3943 Can you advise what is the current setting resolution and the minimum current setting for each LED string?
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  • LP3943: I2C_DATA read/write data mismatch

    TI Thinks Resolved
    Part Number: LP3943 Hi team, My customer is facing the writing value and the reading value of LP3943 are not match. **Write** Write I2C address : 0x61 (1 1 0 0 0 0 1 W) Write LP3943 address : 0x06 (0 0 0 0 0 1 1 0) Write LP3943 value : 0x04 ( 0 0 0 0…

  • MSP432P401R: Unable to read from LP3943 I2C slave in Master Reciever Mode.

    Part Number: MSP432P401R Greetings. I will get straight to the point. I am unable to read any of the registers of a set of LP3943 LED drivers. Each LED driver is an I2C slave and the MSP432 is the I2C master. I can write to the LP3943s no problem. Reading…

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