Hi,
I used a 2N3819 TO-92 FET to switch a 3V supply for a digital ckt on my breadboard and worked just fine. I then ordered from China few boards designed by me and switch the 2N3819 to FDN340P SMD to formfit.
To my surprise, the FDN340P is not switching. Its gate is fed by a 5V signal coming from the output of a ATTiny85 chip.
Where did I go wrong?
Any help is appreciated.
TIA
I used a 2N3819 TO-92 FET to switch a 3V supply for a digital ckt on my breadboard and worked just fine. I then ordered from China few boards designed by me and switch the 2N3819 to FDN340P SMD to formfit.
To my surprise, the FDN340P is not switching. Its gate is fed by a 5V signal coming from the output of a ATTiny85 chip.
Where did I go wrong?
Any help is appreciated.
TIA
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