I have no experience with this device or affiliation to the manufacturer.
Point 1: that module looks rather small to regulate a 300W load. Chinese manufacturers have a habit of 'stretching' the specifications so be aware of potential cooling problems. You might have to force cool it with a small fan. The amount of heat it produces will depend on the load you apply to it.
Point 2: the Voc of your solar panels is the voltage they produce with no load on them. Connecting a load will drop the voltage so you probably won't reach the module maximum input anyway. If in doubt, add a clamp circuit across the PV output that limits the maximum voltage to say 35V.
Brian.
Can I use this module for this panel with a Voc of 43 Volt ?.
Thanks Brian, I did have my doubt about the LT8711 because I can trace one of the gate drivers from the photo and that one doesn't line up with the pinning. One of the next responses confirms that. Beside the fact that the LT8711 application notes work with external PMOS and NMOSFETS and that would mean that the MOSFET must be of different types. I had this LT8711 and MOSFET data from and other guy at the internet and it seems to be be incorrect.Your guesses at part numbers seems reasonable. Generic 80N08 MOSFETS are made by several manufacturers. The IC is best discovered by tracing out the schematic around it. If it wanted to boast of a particular type it wouldn't have the number sanded off.
Brian.
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