I have a small (bought) board here that flashes leds. I opened it up and found that each led + is driven by a S8550 PNP transistor (rated at Ic 0.5A).
I expect the leds attached were drawing in excess of the 0.5A at one point.
My problem is that the led isn't turning off completely - I can see it pulsing but it stays on all the time, never goes off completely.
Is this an indication that the transistor is failing?
I expect the leds attached were drawing in excess of the 0.5A at one point.
My problem is that the led isn't turning off completely - I can see it pulsing but it stays on all the time, never goes off completely.
Is this an indication that the transistor is failing?