datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 1 features n wide 3.6v to 32v input voltage range n 0.22v fb adjustable led drive current n directly drive 11 series 1w led at vin>=12v n fixed 180khz switching frequency n max. 4a switching current capability n up to 94% efficiency n excellent line and load regulation n en pin ttl shutdown capability & with pwm dimming function n internal optimize power mosfet n built in soft-start function n built in frequency compensation n built in thermal shutdown function n built in current limit function n available in to252-5l package applications n led lighting n boost constant current driver n monitor led backlighting n 7 to 15 lcd panels general description the XL6005 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 XL6005 could directly drive 11 series 1w led units at vin>12v . the pwm control circuit is able to adjust the duty ratio linearly from 0 to 95%. 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 XL6005
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 2 pin configurations figure2. pin configuration of XL6005 (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. XL6005 operates from a 3.6v 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 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 3 function block figure3. function block diagram of XL6005 typical application circuit figure4. XL6005 typical application circuit
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 4 ordering information order information marking id package type packing type supplied as XL6005e1 XL6005e1 to252-5l 2500 units on tape & reel xlsemi pb-free products, as designated with e1 suffix in the par number, are rohs compliant. absolute maximum ratings note1 parameter symbol value unit input voltage vin -0.3 to 36 v feedback pin voltage v fb -0.3 to vin v en pin voltage v en -0.3 to vin v output switch pin voltage v output -0.3 to 60 v power dissipation p d internally limited mw thermal resistance (to252-5l) (junction to ambient, no heatsink, free air) r ja 50 o c/w operating junction temperature t j -40 to 125 o c storage temperature t stg -65 to 150 o c lead temperature (soldering, 10 sec) t lead 260 o c esd (hbm) >2000 v note1: stresses greater than those listed under maximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability.
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 5 XL6005 electrical characteristics t a = 25 ;unless otherwise specified. symbol parameter test condition min. typ. max. unit system parameters test circuit figure4 vfb feedback voltage vin = 5v to 12v, vout=24v iload=100ma 209 220 231 mv efficiency ? vin=12v ,vout=24v iout=1a - 92 - % electrical characteristics (dc parameters) vin = 12v, gnd=0v, vin & gnd parallel connect a 100uf/50v capacitor; iout=100ma, t a = 25 ; the others floating unless otherwise specified. parameters symbol test condition min. typ. max. unit input operation voltage vin 3.6 32 v shutdown supply current i stby v en =0v 70 100 ua quiescent supply current i q v en =2v, v fb =vin 2.5 5 ma oscillator frequency fosc 144 180 216 khz switch current limit i l v fb =0 4 a output power nmos rdson vin=12v, i sw =4a 110 120 mohm en pin threshold v en high (regulator on) low (regulator off) 1.4 0.8 v i h v en =2v (on) 3 10 ua en pin input leakage current i l v en =0v (off) 3 10 ua max. duty cycle d max v fb =0v 90 %
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 6 schottky diode selection table current surface mount through hole vr (the same as system maximum input voltage) 20v 30v 40v 50v 60v 1a 1n5817 1n5818 1n5819 1n5820 1n5821 1n5822 mbr320 mbr330 mbr340 mbr350 mbr360 sk32 sk33 sk34 sk35 sk36 30wq03 30wq04 30wq05 31dq03 31dq04 31dq05 3a sr302 sr303 sr304 sr305 sr306 1n5823 1n5824 1n5825 sr502 sr503 sr504 sr505 sr506 sb520 sb530 sb540 sb550 sb560 5a 50wq03 50wq04 50wq05 typical system application for vin=12v to driver 11 x 1w series led units figure5. XL6005 system parameters test circuit (12v ~11 x 1w led)
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 7 typical system application for vin>=12v to driver 6 x 3w series led units figure6. XL6005 system parameters test circuit (12v ~ 6 x 3w led) typical system application for vin>=24v to driver 11 x 3w series led units figure7. XL6005 system parameters test circuit (24v ~ 11 x 3w led)
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 8 typical system application for vin>=12v to driver 11 series x 40 parallel white led array figure8. XL6005 system parameters test circuit (12v ~ 11 x 40 white led) typical system application for sepic buck-boost led driver figure9. XL6005 system parameters test circuit (buck-boost led driver)
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 9 typical system application for vin>=12v to driver 6 x 3w series led units with dimming function figure10. XL6005 system parameters test circuit (12v ~ 6 x 3w led with dimming function)
datasheet 180khz 60v 4a switching current boost led constant current driver XL6005 rev 1.5 www.xlsemi.com 10 package information to2 5 2-5l
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