l298n voltage loss when motor attached Im trying to power a brushless DC Motor (Tamiya 300054358) through the l298n attached to an Arduino.
The l298n is powered by an external 9V source and the logic of the l298n is powered by the Arduinos 5V, wich is also powered by the 9v.
Both components using the same ground.
The code looks good and i can successfully adjust the power-output for the motor between 6-9V.
As soon as is attach the Motor, the volage drops do somewhere around 0-1V and the motor isnt turning.
When i attach the motor directly to the power source, it runs fine, so the power should be enough. (in the original RC car its powered by an 7V battery).
I tried some smaller motors just to be sure and the problem is similar. The motor is turning, but very slowly.
I also tried to connect the batterypack instead of the extern power source just ending up with the same result.
Do you have any ideas, where the problem could be at?
Thanks in advance
From an L298N datasheet:

TOTAL DC CURRENT UP TO 4 A

From motor's &quot;datasheet&quot;:

I'm no expert in electric motors and driving them, not even sure I'm novice level, but I just don't see you driving a motor anything near this current draw with this part.  If by some miracle you can, it will be horribly inefficient owing to the losses associated with the voltage drops that Gil mentions.
For a motor that operates with this much current I would expect a practical h-bridge setup to have discrete mosfets, perhaps mounted to a heatsink.