datasheet 180khz 60v 5a switching current boost led co nstant current driver XL6006 rev 1.5 www.xlsemi.com 1 features ? wide 5v to 32v input voltage range ? maximum boost output up to 60v ? 0.22v fb adjustable led drive current ? directly drive 16 series 1w/3w led at vin=24v ? fixed 180khz switching frequency ? max. 5a switching current capability ? up to 94% efficiency ? excellent line and load regulation ? en pin ttl shutdown capability ? internal optimize power mosfet ? built in soft-start function ? built in frequency compensation ? built in thermal shutdown function ? built in current limit function ? available in to263-5l package applications ? led lighting ? boost constant current driver ? tft led backlighting general description the XL6006 regulator is fixed frequency pwm boost (step-up) led constant current driver, capable of driving series 1w/3w/5w led units with excellent line and load regulation. the regulator is simple to use because it includes internal frequency compensation and a fixed- frequency oscillator so that it requires a minimum number of external components to work. the XL6006 could directly drive 16 series 1w/3w led units at vin=24v . the pwm control circuit is able to adjust the duty ratio linearly from 0 to 90%. an enable function, an over current protection function is built inside. an internal compensation block is built in to minimize external component count. figure1. package type of XL6006
datasheet 180khz 60v 5a switching current boost led co nstant current driver XL6006 rev 1.5 www.xlsemi.com 2 pin configurations figure2. pin configuration of XL6006 (top view) table 1 pin description pin number pin name description 1 gnd ground pin. 2 en enable pin. drive en pin low to turn off the device, drive it high to turn it on. floating is default high. 3 sw power switch output pin (sw). 4 vin supply voltage input pin. XL6006 operates from a 5v to 32v dc voltage. bypass vin to gnd with a suitably large capacitor to eliminate noise on the input. 5 fb feedback pin (fb). the feedback threshold voltage is 0.22v.
datasheet 180khz 60v 5a switching current boost led co nstant current driver XL6006 rev 1.5 www.xlsemi.com 3 function block figure3. function block diagram of XL6006 typical application circuit XL6006 $ * / v g 7 % 4 3 - v i " 7 ( / % 7 * / 4 8 ' # & |