There are a lot of mosfets with gate threshold voltage between 2V and 4V. The short answer is yes. BTW, there are a few mosfets with 0V threshold voltage and 0.2V drain voltage. Vasile On Sat, Nov 21, 2015 at 9:22 AM, Josh Koffman wrote: > Hi all, > > I'm thinking about switching chips, which would mean going to a 3.3V > micro. The project is a medium sized LED dimmer (4A capacity at 24V). > I made a smaller dimmer using a logic level MOSFET that worked well, > and a larger one that I used a gate driver on. > > It would be ideal for this project to not use a driver as I've got to > make a bunch of these, and the costs would add up. > > But...I am not familiar enough with MOSFET design to know if I can > successfully drive them directly at 3.3V. Or if by doing that I will > get excessive internal losses. > > Any thoughts or parts selection ideas? I used the TrenchFET line on my > last project and it seemed pretty decent. > > Josh > -- > A common mistake that people make when trying to design something > completely foolproof is to underestimate the ingenuity of complete > fools. > -Douglas Adams > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .