XL6003

Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 Features General Description „ „ „ The XL6003 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 XL6003 could directly drive 6 Series 1W LED units at VIN>=12V . „ „ „ „ „ „ „ „ „ „ „ Wide 3.6V to 24V Input Voltage Range 0.22V FB adjustable LED drive current Directly drive 6 Series 1W LED at VIN>=12V Fixed 400KHz Switching Frequency Max. 2A Switching Current Capability Up to 92% 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 SOP8L package 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. Applications „ „ „ „ LED Lighting Boost constant current driver Monitor LED Backlighting 7’ to 15’ LCD Panels Figure1. Package Type of XL6003 Rev 1.7 www.xlsemi.com 1 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 Pin Configurations EN 1 8 GND VIN 2 7 GND FB 3 6 SW NC 4 5 SW XL6003 Figure2. Pin Configuration of XL6003 (Top View) Table 1 Pin Description Pin Number Pin Name 1 EN 2 VIN 3 4 FB NC 5,6 SW 7,8 GND Description Enable Pin. Drive EN pin low to turn off the device, drive it high to turn it on. Floating is default high. Supply Voltage Input Pin. XL6003 operates from a 3.6V to 24V DC voltage. Bypass Vin to GND with a suitably large capacitor to eliminate noise on the input. Feedback Pin (FB). The feedback threshold voltage is 0.22V. No Connected. Power Switch Output Pin (SW). Output is the switch node that supplies power to the output. Ground Pin. Rev 1.7 www.xlsemi.com 2 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 Function Block Figure3. Function Block Diagram of XL6003 Typical Application Circuit Figure4. XL6003 Typical Application Circuit Rev 1.7 www.xlsemi.com 3 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 Ordering Information Order Information XL6003E1 Marking ID XL6003E1 Package Type SOP8L Packing Type Supplied As 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 Vin VFB VEN VOutput PD Value -0.3 to 26 -0.3 to Vin -0.3 to Vin -0.3 to 60 Internally limited Unit V V V V mW Input Voltage Feedback Pin Voltage EN Pin Voltage Output Switch Pin Voltage Power Dissipation Thermal Resistance (SOP8) (Junction to Ambient, No Heatsink, Free Air) Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10 sec) ESD (HBM) RJA 100 ºC/W TJ TSTG TLEAD -40 to 125 -65 to 150 260 >2000 ºC ºC ºC 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. Rev 1.7 www.xlsemi.com 4 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 XL6003 Electrical Characteristics Ta = 25℃;unless otherwise specified. Symbol Parameter Test Condition Min. Typ. Max. Unit 209 220 231 mV - 92 - % System parameters test circuit figure4 Feedback Voltage VFB Efficiency ŋ Vin = 5V to 12V, Vout=24V Iload=100mA Vin=12V ,Vout=24V Iout=0.3A Electrical Characteristics (DC Parameters) Vin = 12V, GND=0V, Vin & GND parallel connect a 100uf/50V capacitor; Iout=100mA, Ta = 25℃; the others floating unless otherwise specified. Parameters Symbol Test Condition Min. Typ. 3.6 Max. Unit 24 V Input operation voltage Vin Shutdown Supply Current ISTBY VEN=0V 70 100 uA Quiescent Supply Current Iq VEN =2V, VFB =Vin 2.5 5 mA 400 480 Khz Oscillator Frequency Fosc Switch Current Limit IL VFB =0 2 Output Power NMOS Rdson Vin=12V, ISW=2A 110 VEN High (Regulator ON) Low (Regulator OFF) 1.4 0.8 IH VEN =2V (ON) 3 10 uA IL VEN =0V (OFF) 3 10 uA DMAX VFB=0V 90 EN Pin Threshold EN Pin Input Leakage Current Max. Duty Cycle 320 Rev 1.7 A 120 mohm V % www.xlsemi.com 5 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 Typical System Application for VIN=5V to driver 3 x 1W series LED units Figure5. XL6003 System Parameters Test Circuit (5V ~ 3 x 1W LED) Typical System Application for VIN>=12V to driver 6 x 1W series LED units D1 SS34 L1 22uh/2A COUT 47uF /35V SW VIN Series 6 1W LED 5,6 XL6003 2 3 7,8 +12V FB 1 GND CIN 47uF /25V C2 105 EN C1 105 ON OFF RS 350mA ILED=0.22/RS Figure6. XL6003 System Parameters Test Circuit (12V ~ 6 x 1W LED) Rev 1.7 www.xlsemi.com 6 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 Typical System Application for VIN>=12V to driver 6 series x 28 parallel White LED Array Figure7. XL6003 System Parameters Test Circuit (12V ~ 6 x 28 White LED) Typical System Application for SEPIC Buck-Boost LED Driver L1B 33uh/2A L1A 33uh/2A D1 SS36 COUT 47uF /35V CDC 22uF/50V SW VIN 5,6 XL6003 2 3 GND CIN 47uF /35V Series 4 1W LED FB 1 7,8 VIN C2 105 EN C1 105 ON OFF RS 350mA ILED=0.22/RS Buck-Boost LED Driver Input 8V ~ 16V Output Drive series 4 1W LED Figure8. XL6003 System Parameters Test Circuit (Buck-Boost LED Driver) Rev 1.7 www.xlsemi.com 7 Datasheet 400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003 Typical System Application for VIN>=12V to driver 6 x 1W series LED units With Dimming Function L1 22uh/2A D1 SS34 C2 105 COUT 47uF /35V Series 6 1W LED SW 5,6 VIN XL6003 2 3 7,8 1 R2 EN GND +12V R1 FB C1 105 CIN 47uF /25V R3 C3 105 RS 350mA PWM Dimming Figure9. XL6003 System Parameters Test Circuit (12V ~ 6 x 1W LED with Dimming Function) Typical System Application (LED OVP) LED OVP function can be used in typical system application with external components. The output voltage can be limited in a suitable value by choose different zener diode when the output LED open. the zener diode voltage choosed by output led voltage's 1.3 times. L1 22uH/2A D1 SS36 DZ ZENER SW VIN 5,6 XL6003 2 3 7,8 GND VIN CIN 47uF /35V FB R1 2K C2 105 1 COUT 100uF /63V EN C1 105 RCS ILED=0.22/RCS VDZ=1.3*VOUT