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LM3414 in Webbench

jake freese
Intellectual 260 points
Other Parts Discussed in Thread: LM3414

Howdy,

 

I was looking into using a LM3414 driver in a string of LED's I can not find the LM3414 in WB to try to see how it could work with the LED's I am looking into. 

 

I am looking into the CREE CXA 1304 LED's 9 volts forward with a maximum 1 amp drive.  I would like to put 8 in parallel and have the simple analog dimming capability is my goal.

 

Is there some where else I can look or did the LM3414 get superceeded to another number??

 

Thanks

Jake

  • 0
    TI__Intellectual 1825 points

    Hello Jake,

    Thanks for your interest in Texas Instrument's power management units.  

    The LM3414 is still available and should be in WEBENCH®.  What is your input voltage range and the current you are driving the LEDs?  I can look into why LM3414 isn't showing up in WEBENCH for you.

    Regards,
    Jonathan Arzadon
    Applications Engineer 
    WEBENCH Design Center
    Texas Instruments

  • 0 in reply to Jonathan Arzadon
    Intellectual 260 points

    Howdy Jonathan,

    My max drive current is 1 amp, forward voltage is 9 volts, input voltage for the most part is 12-15 volts.  The lights are getting built for my travel trailer. 

    With a minimum 350ma that will work for my application also.  I plan on using the dimming capability with simple analog. 

     

    I had tried some different parameters and LED's to see if that driver would show up.  I originally found the driver through the Led drivers for high brightness lighting from National Semiconductor. 

     

    Thanks again!

  • 0 in reply to jake freese
    Intellectual 260 points

    Ok I finally found it, looks like the CDA Led's are over the duty cycle, and my other choice of led had too low of a voltage. 

    Back to the drawing board again!!


    Hmmmm LM3434 may be the next one to try out. 

  • 0 in reply to jake freese
    TI__Intellectual 1825 points

    Hi Jake,

    Glad to hear that you were able to figure things out on your own.  If you need any assistance or have any questions, please let me know and I'll be glad to help you out.

    Regards
    Jonathan Arzadon
    Applications Engineer
    WEBENCH® Design Center
    Texas Instruments