I have some doubts about how to make the connection of an irf 530 N type mosfet, I need to increase the power of a digital pin with this transistor to 2A using the voltage of Arduino that are 5 volts, I read some articles that with this arduino voltage I get at least 2 ampers without any external source only that I have made the connections and I am not very sure that it is this way.
The transistor has 3 pins, one is Gate, Drain and Source.
I am connecting the Gate with a resistance of 10k and this I connect it to the digital pin, the Drain I connect it to the ground of the device and the source to ground of Arduino, the voltage of the device I put it in 5 volts of Arduino, just that.
I would like to know if it is correct or how it would be.
I have some doubts about how to make the connection of an irf 530 N type mosfet, I need to increase the power of a digital pin with this transistor to 2A using the voltage of Arduino that are 5 volts, I read some articles that with this arduino voltage I get at least 2 ampers without any external source only that I have made the connections and I am not very sure that it is this way.
The transistor has 3 pins, one is Gate, Drain and Source.
I am connecting the Gate with a resistance of 10k and this I connect it to the digital pin, the Drain I connect it to the ground of the device and the source to ground of Arduino, the voltage of the device I put it in 5 volts of Arduino, just that.
I would like to know if it is correct or how it would be.
Thanks for answering, I attached some images of the circuit that I have now mounted.
Then I would need a logical mosfet so I read this irf530 with 5 volts it gives me the 2A that I need since the mosfet irl logics would increase much more the intensity of current.
The IRF530 needs +10V on the gate to drive it properly. Its not suitable for use from 5V logic
output. Its also a very poor performer with an order of magnitude more on-resistance than
modern alternatives.
All the 3-digit IRFnnn MOSFETs are really ancient - modern devices are much better. Be sure
to get a logic-level n-channel MOSFET.
What voltage and current load do you need to switch? Is the load inductive?
The voltage I need is the same as Arduino, 5 volts but with the difference that I need 2A, apparently arduino only offers me in its pins 40mA nadamas but I need 2A maybe I got confused but I thought that in the tutorial I read that this type of mosfet and with the 5 volts of arduino would give me these 2A
allanhurst:
Suitable N-channel logic level mosfets are eg the IRLZ44N and the FQP30N06L.
There are many more.
Allan
So definitely with this irf 530 mosfet I can not achieve the 2A with the 5 arduino volts, would you really need a transistor of the logical type like the ones you are suggesting to me?
outsider:
What is the LOAD that you are trying to drive? You can NOT drive a 2 Amp load from the Arduino's 5V pin.
The load that I try to drive or amplify is that of the 5 volts of arduino digital pin in 1 logic to 2A, I remember asking in a forum and they suggested me to do it with a mosfet that is why I was asking but apparently it is not possible to less with this mosfet, I want to amplify to 2A only with the same voltage 5 volts to power a USB female jack but I think this is crazy jajaj or not if possible ...
CaleBit:
So definitely with this irf 530 mosfet I can not achieve the 2A with the 5 arduino volts, would you really need a transistor of the logical type like the ones you are suggesting to me?
Thank you...
Yes, you need a logic level MOSFET if you are operating it from logic levels.
Take a look at Fig.1 of the datasheet of the IRF530. With 4.5 V GS you get a maximum of 10^0 Amps, so it won't do what you want which was 2 Amps.
Even if it had, don't try to draw 2 Amps from a USB. They might say that they can do that, but just don't. A typical PC has a usb output of about 4.5 Volts (they call it 5) and then it goes through quite thin wires which are great for half an Amp or less.
From the datasheet you'll also see that V DS of up to 100 Volts is allowed and V DS of 10 Volts was used in test. Those are somewhat typical for the three legs fat N-fet like that one - they are good with car battery voltages as well. Go through datasheets and find one which can switch > 8 Amps at < 4 Volts, which is about what to expect out of the "5 V" Arduino rounded down from 4.5 Volts usb power supply of the Arduino. If you find one which has fully switched >>2A by the time it gets past 3V, that is good. You don't ever want to be 'half on' because that would get hot.
You definitely want a separate external DC supply so that usb powers your arduino and V GS, whilst the external, with suitably fat wires, goes through your load and V DS. You join up a common ground, via the pin marked "GND" on the Arduino. The best supply will depend on your load. Read V DS off the datasheet, expecting about 1 Volt, and add that to what your load needs. It is possible that "about 6 Volts" from some batteries is about right.
