- Tue Jun 26, 2018 11:56 am
#199571
I'm interested in the Picobuck LED Driver to drive several high brighness LEDs; the hookup guide mentions (and shows) four of the COM-13104 3watt LEDs in series - per channel.
The Picobuck spec mentions a max current delivery of 660 mA per channel with a jumper change. The hookup guide shows four 3w LEDs in series. Each draws 750mA, so that's (4x.75a) 3 amp current draw. This exceeds the stated 660 mA per channel.
I may only drive one 3w LED per channel, and that will still exceed the max current by 750-660= 90 mA (without changing the sense resistors)
Can a Sparkfun engineer or product specialist please clarify?
thanks
jude
The Picobuck spec mentions a max current delivery of 660 mA per channel with a jumper change. The hookup guide shows four 3w LEDs in series. Each draws 750mA, so that's (4x.75a) 3 amp current draw. This exceeds the stated 660 mA per channel.
I may only drive one 3w LED per channel, and that will still exceed the max current by 750-660= 90 mA (without changing the sense resistors)
Can a Sparkfun engineer or product specialist please clarify?
thanks
jude