I'm salvaging parts from old computers, read the datasheet of those parts and try to understand the important things build stuff. While i now understand some crucial things about mosfets there is alot that i need to learn. Anyway i'm playing with the tlc5940 (16ch 12bit led driver) and i wanted to create a "animated" illumination for my room. I already created some led drivers with transistors , but also mosfets. Not logic level mosfets. To do so i needed to build a complex "Saturation" circuit involving other 2 transistors per Mosfet.
In my local electronics shop they on ly have higher voltage mosfets. Also on the websites i normally buy parts.
The salvaged mosfets are all N-type Logic level ... so perfect both for the raspberry and the Arduino.I can saturate them correctly, there is almost no voltage drop, they are really fast and they sink alot.
My question is:
Looking at the datasheet i could not find that big difference regarding each different mosfet. But they all have another number.I tought the amperage but some lower number mosfets have more amps.
05N03L = 80 Ampere 07N03L = 30 Ampere 15N03L = 42 Ampere 32N03L = 50 Ampere 46N03L 55N03L 60N03L
So what are those 2 numbers in front of the code?
N means N-type, L means logic level ... 03?
And most important question:
If i use different types of those mosfets with the tlc5940 could there be a SERIOUS problem or would that work nicely?
note: pullup 10k each ch, tlc with 6,8k resistor to let just sink enough to activate the mosfet, keep all channels under 3A.
Sample circuit using arduino pins
And here using TLC5940NT