• RE: LTM8042

    Hi Mark,

    Does one controller contain the three LTM8042 LED drivers? If yes, it could be a manufacturability issue since only one has an issue. You could try replacing the IC with issue with ICs from your other working controllers to identify if the problem…

  • LTM8042

    Hi,

    I'm use three LTM8042 LED Driver.

    LED shape is like doughnut, 21LED is compented 7 series, 3 parallel.

    when i control it by pwm, only one driver's output is large than others.

    i have 5 controller, only one controller happen this situation.

  • LTM8042 strange output

    Hi,

    I'm use three LTM8042 LED Driver.

    LED shape is like doughnut, 21LED is compented 7 series, 3 parallel

    when i control it by pwm, only one driver's output is large than others.

    i have 5 controller, only one controller happen this situation.

  • LTM8042 strange output

    Hi,

    I'm use three LTM8042 LED Driver.

    LED shape is like doughnut, 21LED is compented 7 series, 3 parallel

    when i control it by pwm, only one driver's output is large than others.

    i have 5 controller, only one controller happen this situation.

  • LTM8042 ICTL MAX current

    I the datasheet, the only typical value is defined for ICTL.

    what is the maximum ICTL?

    I need to choose opamp which can sink ICTL current from LTM8042.

  • 设计需求2A恒流,LTM8042输出为1A,是否可以直接并联,实现2A恒流?

    设计需求2A恒流,LTM8042输出为1A,是否可以直接并联,实现2A恒流?

  • RE: LED Driver implementing analog dimming by adjusting the internal reference voltage

    Hi Laura,

    Please check these: the analog dimming is not as fine though.

    Very close:
    LT3477
    LT3517

    Similar:
    LT3922-1
    LT3932/LT3932-1
    LT3952A
    LTM8040
    LTM8042

  • RE: LED: variable current driver

    Hi,

    There are few micro modules in the website that you can check.  You may start with LTM8042 to drive 8 LEDs.  You can use four of these.  Thanks!

  • ltm8040是否可以直接并联

    设计需求,2A恒流源,LTM8042是1A恒流,可以直接把2个芯片并联,实现2A恒流输出吗?

  • RE: LT3598 Minimum pulse width during PWM dimming

    Hi

    The PWMratio for LT3598 is computed similarly with LTM8042. LT3598's Tmin is not discussed on the data sheet since the Tmin of LT3598 could be influenced by the compensation implemented with it. The Compensation should be properly tuned to the specific…