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LM3429: 300W Boost constant led driver application

奉祥 林
Prodigy 40 points
Part Number: LM3429


Tool/software:

Hi 

I would like to confirm whether this device can support

A. 300W design with an input of 19V–30V, boosting to 48V output at a constant current of 5.9A ,Is this application feasible??

B. pin 7 (nDIM) be used as an EN pin?

C.Is there an Excel calculator or an online calculation tool available?

Thanks

  • 0
    TI__Genius 17720 points

    This is boost controller with external power devices. Thus, you may achieve 300W design if power device can handle such high power and system can dissipate power loss. You need to pay high attention to power device selection and thermal dissipation. 

    There is no excel calculator, while you may download simulation tool for design if interested. 

    btw, you might need to add external gate driver to enhance drive ability and reduce switching loss