{"product_id":"femtobuck-led-driver","title":"FemtoBuck LED Driver","description":"\u003cp\u003eThis is the FemtoBuck, a small-size single-output constant current LED driver. Each FemtoBuck has the capability to dim a single high-power channel of LEDs from 0-350mA at up to 36V while the dimming control can be either accessed via PWM or analog signal from 0-2.5V.\u003c\/p\u003e\n\u003cp\u003eThis board is based off of the \u003ca href=\"\/en-au\/products\/picobuck-led-driver\" target=\"_blank\"\u003ePicoBuck LED Driver\u003c\/a\u003e, developed in collaboration with Ethan Zonca, except instead of blending three different LEDs on three different channels the FemtoBuck controls just one.\u003c\/p\u003e\n\u003cp\u003eFor the FemtoBuck, SparkFun increased the voltage ratings on the parts to allow the input voltage to cover the full 36V range of the AL8805 driver. Since the FemtoBuck is a constant current driver, the current drawn from the supply will drop as supply voltage rises. In general, efficiency of the FemtoBuck is around 95%, depending on the input voltage.\u003c\/p\u003e\n\u003cp\u003eOn board each FemtoBuck you will find two inputs for both power input and dimming control pins and an area to install a 3.5mm screw terminal. Finally at either side of the board you will find small indents or “ears” which will allow you to use a zip tie to secure the wires to the board after soldering them down.\u003c\/p\u003e\n\u003cp\u003eThis version of the FemtoBuck is equipped with a small solder jumper that can be closed with a glob of solder to double the output current from 330mA to 660mA.\u003c\/p\u003e\n\u003ch2\u003eDocuments:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Components\/LED\/femtobuck_v12.pdf\" target=\"_blank\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Components\/LED\/femtobuck_v12.zip\" target=\"_blank\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.sparkfun.com\/tutorials\/femtobuck-constant-current-led-driver-hookup-guide-v12\" target=\"_blank\"\u003eHookup Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Components\/LED\/AL8805.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e (AL8805W5)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/github.com\/sparkfun\/FemtoBuck\/tree\/V_1.2\" target=\"_blank\"\u003eGitHub\u003c\/a\u003e (Design Files)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":20368456327,"sku":"COM-13716","price":15.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/13716-01.jpg?v=1462283727","url":"https:\/\/shop.pimoroni.com\/en-au\/products\/femtobuck-led-driver","provider":"Pimoroni Ltd","version":"1.0","type":"link"}