I'm currently using Arduino MEGA for a project in university,
it requires for me to drive a motor with a maximum current load of 1.6A
(for that I'm using LM293 as driver, not sure if it is relevant)
Can I draw that current from the Vin pin? The power supply I'm using
can go up to 3A.
Thank you, very much,
There is a series polarity protection diode rated for 1 amp between the external DC power connector and the Vin pin so trying to draw 3 amps from your power supply that way will not work. You will need to tap into your external power upstream of the arduino DC power connector. Even it there was not that diode drawing 3 amps from the circuit traces and shield connector pin would be really stretching it.