Description: The PicoBuck LED Driver is an economical and easy to use driver that will allow you to control and blend three different LEDs on three different channels. Power is supplied to the PicoBuck through a wide range of input voltages (6v to 20v) connected to the VIN header and three inputs for each driver channel (labeled IN1, IN2, and IN3) driven with standard 3.3v or 5v logic.
This PicoBuck supports PWM control so long as the signal is above a minimum of ~1.5V and each LED is driven to ~350mA.
Note: If you’re going to use screw terminals, this board uses two different sizes. Check the related products for both sizes you’ll need.
Note: The PicoBuck LED Driver was made in collaboration with Ethan Zonca. A portion of each sale is given back to him.
Based on 8 ratings:
2 of 2 found this helpful:
Only thing that would be nicer is if it didn’t turn on while controller is off
this little guy works really well and was even smaller than i’d figured. and was so easy to use with the PWM outputs from my netduino to control one channel each of RGB. my only complaint is that those resistors are surface mounted. would be nice to have an easier route to replace them for those of us without the skills/gear to work with them.
This is a nice compact with three LED current drivers at 350mA each. There is also a digital control input for each to switch it On/Off or Pulse Width Modulate the LED. As another reviewer commented the pins are on strange spacings. The power inputs and outputs aren’t 0.1" spacing, they’re 0.15". The signal inputs are strange too, GND and IN1 have a 0.1" spacing and IN2 and IN3 have a 0.1" spacing but between IN1 and IN2 it’s closer to 0.15". Since most of the connectors I have are on 0.1" this is a little inconvenient but if you’re just soldering wires it makes no difference. Also the Buck LED driver has a resistor that sets the current at 350mA. I think the chip and many LEDs are capable of 1A. Since the resistor is a small 0603 package it is difficult to change it to increase the current if desired. 350mA is quite brite, just curious to see what an Amp looks like!
This is a great little board for powering and controlling bright RGB LED’s. I’m using mine to power the 3 channel RGB led from Sparkfun.
The board is very well designed. The only thing I could recommend to Sparkfun is breaking out another Vin+ so that the same source that is powering the LED’s could be easily used to power an attached controller such as an arduino.
I simply placed a second wire in the Vin+ terminal to share the V+ and used the GND next to IN1 as ground since I was controlling it with PWM anyways.. Simple solution but may not work for everyone if your power source has large wires.
Otherwise this is a great board that is quite compact and does its job with no fuss.
0 of 3 found this helpful:
I asked some questions according the board, tried it 3 times and didn’t get any answer. So the Resume: product ok - Contact and communication extrem bad / nothing. So i will buy never here.
Hello, It appears that we received an email from you on April 15, and replied to you the same day. We tried to answer all of your questions in that email. That’s the last we heard from you. I’m sorry you were not satisfied with our technician’s response.
I use the PicoBuck LED driver with the high power LEDs on my 4WD robot and seems to be the right fit for it. I plan to use the PWM feature in the future. AC/.
I used the PicoBuck to drive three 13106 3W LEDs and it works perfectly.
Hooked this little guy to the Raspberry Pi and some powerful IRLED’s and it drove them pretty well. I/O was easy and dimming was just as so. Only problem was the plethora of pin pitches for screw terminals. Making all of them the same pitch would have been nice for both purchasing screw terminals and lining them up on the board (awkward having different sizes).