I am trying to challenge myself and figure out some things on a arduino circuit.
I am trying to controll my analoge 4 pin led strip.
It has no GND pin only a 5V+ and the R, G and B pin seperately.
I wanted to know if I can use a 2N2222 transistor instead of a MOSFET.
Or are there better ways to controll the LED's?
And what are the differences between a MOSFET and a transistor?
Yes, you can use 2n2222, but check the data sheet for the maximum current it can take (collector-emitter) compared to the current your LED strip will draw. You want to keep comfortably below the limit.
A MOSFET is a type of transistor. The "T" in MOSFET stands for Transistor
2n2222 is a Base Junction Transistor, a different type of transistor to a MOSFET.
MOSFETs and BJTs have different characteristics and advantages/disadvantages. MOSFETs are a newer type than BJTs but both have been around for many decades. If MOSFETs were better than BJTs in all respects, BJTs wouldn't be around any more, but they are.
For switching LED strips, MOSFETs are generally preferred, but BJTs can also be suitable. With all types of transistors, you need to check that the circuit you put them into will not exceed their maximum parameters.
The absolute max you want to switch with a 2N2222 with 220 ohm base resistor is a few hundred mA. Meaning not more than about 15 RGB LEDs with three 2N2222.
Leo..
What do you mean by analog?
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