Logic or Embedded/I Would Like to Gain in Amperage by So Much

Semiconductor Discrete Semiconductor Products
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1

So,

Here it is: what mathematic approach would I need so that my mA is gained by 5mA?

I am asking because I have a GPIO peripheral handling so much mA and I need to have a gain in mA to handle a driver (DM542T).

So, I was guessing on the math handling around the approach to get from 4mA to about 8mA or 9mA of current. I will be testing of course…

Here is the issue: is using older technology that wholesomely is broken but parts may be salvaged still legal?

I mean, would I need to purchase new parts? And, if I need to purchase new parts, what exact current gain should I be searching to attain?

For instance: https://www.digikey.com/short/58twnm0p which would bring someone to a Diodes Incorporated BSS138DW-FDICT-ND.

I see in the datasheet some specifications for, say, this exact match which is probably what I do not need right now but just to say:

| BVDSS | RDS(ON) Max      | ID Max TA = +25°C |
|  50v  | 3.5Ω @ VGS = 10V |       200mA       |

How can I really interpret these STEM meanings and the approach I would need to take to get my dial turning correctly?

I am not finding a way to understand everything when I need to be able to understand a bit.

So and for now, the BeagleY-AI from beagleboard.org will be used as a test case on my learning path. Right now, I have a cool motor, a driver, and the BeagleY-AI driving the GPIO peripheral to handle some fan-tan-tastic GPIO driven linear actuator moves.

I am not sure if you caught it or not but I have a cool motor. ha.

All jokes aside, the motor is way too cool for me to believe it was once so darn hot that I could not touch it. I got lucky as usual.

Resistors, Transistors, and LEDs will be in the mix but, and I again state this idea, I need the math behind how to understand what it is I am looking at now (this datasheet). Okay. Done for now.

2

Hello,
Welcome to the forum. I’ll do some checking on this and post the information I find.

3

It appears that the essential question here involves providing a modest boost to a few microcontroller I/O pins.

The datasheet for the drive mentioned gives a representation of the inputs on page 6. Figure 2 offers an illustration of how the job could be done using some extra transistors of the sort mentioned.

4

Thank you.

So, are you marking this solved because of the fact that I only need to configure a few mA “boost” from some I/O? If so, fine by me.

I guess I am just not fully understanding how to gain in mA per use of the I/O (GPIO) while the I/O is being used.

But…if this stands. Okay.