I am working with this LM3445 driver, trying to make a circuit as it is shown in datasheet. And I do not know how should I choose fsw. Or should I calculate it? I have10 LEDs 700mA, 3.6V. Another question - maybe anyone have tryed to design LM3445 circuit using Cadence or Micro-Cap?
Thank You for answers :)
Hi Donatas, have you tried using our online tool? http://www.ti.com/ww/en/analog/webench/led_architect.shtml it is a good place to start and you can optimize your design in different ways and see the trade offs. This link will start you out with a very good overview.
On Cadence/MicroCap - unfortunately we currently do not have models of the IC for these software suites. If you are familiar with these tools; becuase the part is hysteretic you can make a simple model of the operation. But, in general an exel sheet using the basic equations we provide will usually be enough to help you adjust the design for your paramters.
Hello Tim, thank You for answers. I will try something.
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