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- Jan 21, 2010
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I was assuming 20mA for the LEDs, and 20 strings of 2 LEDs, so 400mA per mosfet.
If you're running 50 at 30mA, then that's 25 strings at 30mA which is 750mA. So it's still fine.
At 1.2A (40 leds all running in parallel with their own resistors?) the mosfets may get a little warm, but as long as the flash rate is low, I can't see it being a huge problem.
If they get too warm to comfortably hold between your fingers then I'd say something is wrong.
If you're running 50 at 30mA, then that's 25 strings at 30mA which is 750mA. So it's still fine.
At 1.2A (40 leds all running in parallel with their own resistors?) the mosfets may get a little warm, but as long as the flash rate is low, I can't see it being a huge problem.
If they get too warm to comfortably hold between your fingers then I'd say something is wrong.