XL8003

XLSEMI Datasheet 技术索样QQ：1378271156 80V 0.5A Switching Current Buck PFM LED Constant Current Driver XL8003 Features General Description n n n n n n n n n n n The XL8003 is a monolithic high voltage switching regulator with PFM that is specifically designed to operate from a 24V~80V DC supply. n Wide 24V to 80V Input Voltage Range 0.2V current sense voltage reference. Directly drive 3~8 series 1W LED. Excellent line and load regulation. High efficiency up to 96%. Internal optimize power HV-MOSFET. Built in thermal shutdown function. Built in UVLO function. Built in current limiting function. Built in LED open & short protection. Built in soft-start circuit. Available in SOIC-8 package. The XL8003 is a high efficiency LED driver switching regulator. The LED string is driven at DC constant current rather than constant voltage, thus providing constant current output and enhanced reliability. Applications n n n EBIKE LED Lighting LED Lighting & LED LAMP General purpose lighting Figure1. Package Type of XL8003 Rev 1.2 www.xlsemi.com 1 XLSEMI Datasheet 80V 0.5A Switching Current Buck PFM LED Constant Current Driver XL8003 Pin Configurations NC 1 8 CSN VDD 2 7 CSN XL8003 CSP 3 6 VIN SW 4 5 VIN Figure2. Pin Configuration of XL8003 (Top View) Table 1 Pin Description Pin Number 1 2 3 4 5, 6 7, 8 Pin Name NC VDD CSP SW VIN CSN Description No Connected. The chip supply voltage. Current Sense Positive Terminal. Output Switching Pin Input high voltage Pin. (Operation voltage 24V~ 80V) Current Sense Negative Terminal. Function Block Figure3. Function Block Diagram of XL8003 Rev 1.2 www.xlsemi.com 2 XLSEMI Datasheet 80V 0.5A Switching Current Buck PFM LED Constant Current Driver XL8003 Typical application circuit Figure4. XL8003 Typical Application (3W~8W LED lamp) Ordering Information Order Information XL8003E1 Marking ID XL8003E1 Package Type SOIC-8 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 Input Voltage Power Dissipation Thermal Resistance (SOP-8L) (Junction to Ambient, No Heatsink, Free Air) Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10 sec) ESD (HBM) Rev 1.2 Vin PD Value -0.3 to 90 Internally limited Unit V mW RJA 100 ºC/W TJ TSTG TLEAD -40 to 125 -65 to 150 260 3000 ºC ºC ºC V www.xlsemi.com 3 XLSEMI Datasheet 80V 0.5A Switching Current Buck PFM LED Constant Current Driver XL8003 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. XL8003 Electrical Characteristics Ta = 25℃;unless otherwise specified. Reference test circuit figure4 Symbol VCSP Efficiency Efficiency Efficiency Parameter Test Condition Min. Typ. Max. Unit CSP Voltage VIN = 24V to 80V, Iled=0.3A, Pout=8W 190 200 210 mV ŋ ŋ ŋ VIN=48V, Iled=0.3A, Pout=8W - 94.78 - % VIN=60V, Iled=0.3A, Pout=8W - 93.99 - % VIN=72V, Iled=0.3A, Pout=8W - 92.55 - % Min. Typ. Max. Unit 80 V Electrical Characteristics (DC Parameters) Parameters Symbol Input operation voltage VIN Switching Frequency Fosc Switching Frequency Fosc Switching Frequency Fosc Output LED open voltage DMOS Drain-Source Breakdown Voltage DMOS Drain-Source on resistor Thermal Shutdown Test Condition 24 Figure4 (8*1W) VIN=48V Figure4 (8*1W) VIN=60V Figure4 (8*1W) VIN=72V 53.8 67.2 80.6 KHz 64.2 80.2 96.2 KHz 70.0 87.4 104.8 KHz 36 V Vopen Figure4 VBRDS VGS=0V, IDS=250uA RDSON IDS=0.5A, VGS=10V 0.1 OTP Tj 165 0 C 25 0 C Thermal Shutdown Window Rev 1.2 VIN=72V 90 V 0.15 Ohm www.xlsemi.com 4 XLSEMI Datasheet 80V 0.5A Switching Current Buck PFM LED Constant Current Driver XL8003 [1] Typical application circuit (3W ~ 8W) Figure5. XL8003 System Application (3W ~ 8W) The figure5 system parameters as following: 1W LED Series 3 4 5 6 7 8 Vin(V) Iin(mA) 35.97 35.98 35.98 35.97 35.96 35.96 89 114 140 164 188 212 1W LED Series 3 4 5 6 7 8 Vin(V) 47.99 47.99 47.99 47.98 47.98 47.98 VIN=36V DC Vout(V) 9.60 12.79 16.07 19.22 22.41 25.68 VIN=48V DC Iin(mA) Vout(V) 68 9.62 87 12.79 107 16.07 125 19.21 144 22.41 162 25.67 Rev 1.2 Iout(mA) Fosc(KHz) Effiency(%) 297 294 291 289 287 285 44.9 50.0 53.7 53.0 49.1 41.8 89.06 91.68 92.84 94.16 95.14 96.00 Iout(mA) 300 298 295 292 290 287 Fosc(KHz) 47.6 56.2 62.6 66.6 68.1 67.2 Effiency(%) 88.44 91.29 92.32 93.53 94.06 94.78 www.xlsemi.com 5 XLSEMI Datasheet 80V 0.5A Switching Current Buck PFM LED Constant Current Driver 1W LED Series 3 4 5 6 7 8 Vin(V) Iin(mA) 59.99 59.99 59.98 59.99 59.98 59.98 55 71 87 102 117 132 1W LED Series 3 4 5 6 7 8 Vin(V) 71.97 71.97 71.97 71.96 71.96 71.95 VIN=60V DC Vout(V) 9.62 12.78 16.06 19.21 22.40 25.66 VIN=72V DC Iin(mA) Vout(V) 47 60 74 87 100 113 9.62 12.80 16.08 19.23 22.42 25.68 XL8003 Iout(mA) Fosc(KHz) Effiency(%) 303 301 298 295 292 290 48.4 58.4 66.8 73.1 77.6 80.2 88.34 90.32 91.71 92.61 93.20 93.99 Iout(mA) Fosc(KHz) 306 304 301 298 296 293 48.7 59.5 69.0 76.4 82.7 87.4 Effiency(%) 87.03 90.11 90.88 91.53 92.22 92.55 Figure6. XL8003 System efficiency curve Rev 1.2 www.xlsemi.com 6 XLSEMI Datasheet 80V 0.5A Switching Current Buck PFM LED Constant Current Driver XL8003 Package Information SOP8 Package Mechanical Dimensions Rev 1.2 www.xlsemi.com 7