I'm looking for a buck controller which is similar to UC2827.
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I'm looking for a buck controller which is similar to UC2827.
Hello Manimuthu,
Just wanted to ask a few questions to be able to recommend a part:
thanks,
Cesar
Hello Cesar,
It has to be controller with external switch.
Output voltage & Output current : Our requirement is to convert 400V to 250V @4A. So we plan to use isolated driver to drive the external MOSFET. Here I hope it is not required to consider output voltage and current to select buck controller.
Thanks,
Manimuthu
Hi Manimuthu,
Have you considered an LLC controller for this power level? This is a resonant topology and can achieve very high conversion efficiencies. We have a new LLC controller the UCC25660 which could easily support this power level. If you want to see a short introduction to the LLC topology, check out this video.
I hope this answers your question.
Hi Manimuthu,
Maybe I am not reading the above properly. It looks like you want to convert 400V to 250V at 4A which is an output power of 1000W. Since an isolated gate driver is mentioned, I am assuming you are looking for an isolated topology, Is my understanding correct?