Go Down

Topic: Why i am killing my tip120 ? (Read 1 time) previous topic - next topic

SurferTim

Try connecting the wire connected to the Arduino D3 pin to ground instead of the Arduino pin. Does the LED still light?

@cjdelphi: That is not what the datasheet shows. Pin 1 is the base.


cheesepower


you're not blowing them, they work still no doubt, collect D3 of Arduino to the Base Pin (middle/2 pin), Emitter to GND, Collector to your LED's GND (short lead) and the Anode + side goes straight to your 5v rail.


According to the datasheet, the base pin is the pin 1, right ?

SurferTim

Pin 1 is the base. Did you try the test?


cheesepower

#8
Jan 12, 2013, 01:30 pm Last Edit: Jan 12, 2013, 01:33 pm by cheesepower Reason: 1

Pin 1 is the base. Did you try the test?



Yes, and the led is still light

cjdelphi

ah yes sorry my bad, I looked at the Darlington first, then i went back to a similar datasheet i had open and looked, then i went back and realized.

take a look at the attachment....

Go Up