datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 1 features n wide 3.6v to 24v input voltage rang n 0.22v constant current sense voltage n directly drive 3~8 series 1w led n fixed 400khz switching frequency n max. 2a switching current capability n up to 92% efficiency n excellent line and load regulation n en pin ttl shutdown capability n internal optimize power mosfet n built in led open protection 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 sop8 package applications n led lighting n boost constant current driver n monitor led backlighting n 7 to 15 lcd panels general description the XL6001 regulator is fixed frequency pwm boost (step-up) led constant current driver, capable of driving series 1w 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 XL6001 could directly drive 5~8 series 1w led units at vin>12v . 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 XL6001 v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 2 pin configurations XL6001 1 3 5 2 4 sw en fb vin nc 6 7 8 sw gnd gnd figure2. pin configuration of XL6001 (top view) table 1 pin description pin number pin name description 1 en enable pin. drive en pin low to turn off the device, drive it high to turn it on. floating is default high. 2 vin supply voltage input pin. XL6001 operates from a 3.6v to 24v dc voltage. bypass vin to gnd with a suitably large capacitor to eliminate noise on the input. 3 fb feedback pin (fb). the feedback threshold voltage is 0.22v. 4 nc no connected. 5,6 sw power switch output pin (sw). output is the switch node that supplies power to the output. 7,8 gnd g round pin. n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 3 function block figure3. function block diagram of XL6001 typical application circuit figure4. XL6001 typical application circuit n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 4 ordering information part number marking id lead free lead free packing type XL6001e1 XL6001e1 tube package temperature range XL6001tre1 XL6001e1 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 26 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 32 v power dissipation p d internally limited mw thermal resistance (sop8) (junction to ambient, no heatsink, free air) r ja 100 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. n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 5 XL6001 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= 6*1w led iout=0.3a - 92 - % electrical characteristics (dc parameters) vin = 12v, gnd=0v, vin & gnd parallel connect a 47uf/25v capacitor; iout=50ma, t a = 25; the others floating unless otherwise specified. parameters symbol test condition min. typ. max. unit input operation voltage vin 3. 6 24 v shutdown supply current i stby v en =0 v 70 100 u a quiescent supply current i q v en =2v, v fb =vin 2 . 5 5 ma oscillator frequency fosc 320 400 480 khz switch current limi t i l v fb = 0 2 a output power nmos rdson vin=12v, i sw =2a 1 10 120 mohm en pin threshol d v en high (regulator on) low (regulator off) 1.4 0.8 v i h v en =2v (on ) 3 10 u a en pin input leakage current i l v en =0v (off ) 3 10 u a max. duty cycle d max v fb =0 v 90 % n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 6 schottky diode selection table current surface mount through hole vr (the same as system maximum input voltage) 20v 30v 40v 50v 60v 1a 1n 5817 1n 5818 1n 5819 1n 5820 1n 5821 1n 5822 mbr320 mbr330 mbr340 mbr350 mbr360 sk32 sk33 sk34 sk35 sk36 30wq 03 30wq04 30wq 05 31dq 03 31dq04 31dq 05 3a sr302 sr303 sr304 sr305 sr306 typical system application for vin=5v to driver 2~6 x 1w series led units figure5. XL6001 system parameters test circuit (2~6 x 1w led) n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 7 typical system application for vin=12v to driver 4~8 x 1w series led units figure6. XL6001 system parameters test circuit (4~8 x 1w led) typical system application for vin=12v to driver 4~8 x 1w series led units with pwm dimming figure7. XL6001 system parameters test circuit (4~8 x 1w led with pwm dimming) n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 8 typical system application for sepic buck-boost led driver XL6001 c in 47uf /25v d1 ss34 l1a 33uh/2a vin 2 7,8 1 3 5,6 gnd vin sw en buck-boost led driver input 8v ~ 16v output drive series 4 1w led fb l1b 33uh/2a c dc 22uf/35v 350ma i led =0.22/rs series 4 1w led rs c out 47uf /35v figure8. XL6001 system parameters test circuit (buck-boost led driver) n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
datasheet 400khz 32v 2a switching current boost led constant current driver XL6001 rev 1.2 9 package information sop8 package mechanical dimensions n ~n?t?m?w3^v?mw`r?y?b?g ?pqls? tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com v?mw`r?y?b? w w w . g o f o t e c h . c o m
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