cancel
Showing results for 
Search instead for 
Did you mean: 

Use MOSFETS with STM32 to power up sensors

yaxsomo
Associate III

Hello everyone! 

I want to use some MOSFETS to individually power up/down sensors on a PCB. Here's the schematics : 

yaxsomo_0-1725350654452.png

 

The MOSFET is a DMG1012T-7 (N-Channel) and here's it's datasheet : 

https://www.lcsc.com/datasheet/lcsc_datasheet_1809050424_Diodes-Incorporated-DMG1012T-7_C20512.pdf

All the sensors runs on 3.3V and the maximum power draw for a single sensor is 14.34 mA max.

What do you think about this? Is it a good practice ?

1 REPLY 1
yaxsomo
Associate III

I think I made a huge mistake! As they are N-Channel MOSFETS, they're supposed to switch the "low side" of a load. So the previous schematics are totally wrong..

Here's the correction : 

yaxsomo_0-1725363346340.png