Hi. I am designing a boost LED driver using LT3761.
Using the datasheet examples I designed and ordered PCBs, assembled them, but every time I connect the power one of four things explode: fuse, driver, boost MOSFET or sense shunt. I tried many different LEDs, calculated and populated different sets of components, but the result is the same. I tried the exact values from the datasheet's first example, boost driver for 1A led, the result is the same.
I have several years of hardware design experience and all my designed projects work well. I understand all the principles of the operation of LT3761. I do not know what is wrong here.
Please see the attached schematic and the PCB.
The Inductor is 10uH.
We always recommend that the demo board which is available in ADI website is a good start point for any designs. It works and ADI stands behind it.
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