XL8002

XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Features General Description „ „ „ „ „ „ „ „ The XL8002 is a monolithic high voltage switching regulator with PFM that is specifically designed to operate from a 12V~80V DC power supply. „ „ Operation Voltage DC 12V~80V. 0.1V current sense voltage reference. Directly drive 1~18 Series 1W/3W LED. Excellent line and load regulation. Internal Optimize Power HV-MOSFET. Built in Thermal Shutdown Function. Built in Current Limiting Function. Built in Soft-Start Circuit. Available in TO263-5L package. Up to 98% efficiency. The XL8002 is a high efficiency LED driver switching regulator. The LED string is driven at DC constant current rather than constant voltage, thus providing constant light output and enhanced reliability. Applications „ „ LED Lighting & LED LAMP General purpose LED lighting Figure1. Package Type of XL8002 Rev 1.2 www.xlsemi.com 1 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Pin Configurations The back exposed PAD is VIN Figure2. Pin Configuration of XL8002 (Top View) Table 1 Pin Description Pin Number 1 2 3 4 5 Pin Name START VREG VIN CSN CSP Description Internal soft start Pin. Internal Voltage Regulation Pin. (The VREG is about 8V) Input high voltage Pin. (Operation voltage 12V~80V) Current Sense Negative Pin. Current Sense Positive Pin. (The current sense voltage is 0.1V) Rev 1.2 www.xlsemi.com 2 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Function Block Figure3. Function Block Diagram of XL8002 Typical Application Circuit Figure4. XL8002 Typical Application Rev 1.2 www.xlsemi.com 3 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Figure5. Efficiency VS Output N*1W LED Figure6. Output ILED Load Regulation VS Output N*1W LED Rev 1.2 www.xlsemi.com 4 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Ordering Information Order Information XL8002E1 Marking ID XL8002E1 Package Type TO263-5L Packing Type Supplied As 800 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 PD Value -0.3 to 90 Internally limited Unit V mW Input Voltage Power Dissipation Thermal Resistance (TO263-5L) (Junction to Ambient, No Heatsink, Free Air) Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10 sec) ESD (HBM) RJA 30 ºC/W TJ TSTG TLEAD -40 to 125 -65 to 150 260 >3000 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 1.2 www.xlsemi.com 5 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 XL8002 Electrical Characteristics Ta = 25℃;unless otherwise specified. Reference test circuit figure4 Symbol VCSP Parameter Test Condition CSP Voltage VIN=72V; Iled=300mA; Series 1~18 1W LED VIN=72V; Iled=300mA; Pout=16W Efficiency ŋ Min. Typ. Max. Unit 96 100 104 mV - 98 - % Max. Unit 80 V 152 KHz Electrical Characteristics (DC Parameters) Parameters Symbol Input operation voltage VIN Switching Frequency Fosc Max. Duty Cycle DMAX VDMOS Drain-Source Breakdown Voltage VDMOS Drain-Source on resistor Thermal Shutdown Test Condition Min. Typ. 12 Figure4 (12*1W) VIN=72V 102 127 85 % VBRDS VGS=0V, IDS=250uA RDSON IDS=1A, VGS=8V 100 OTP Tj 160 0 C 20 0 C Thermal Shutdown Window Rev 1.2 90 V 120 mOhm www.xlsemi.com 6 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 [1] Typical System Application (VIN=60V~80V) Figure7. XL8002 System Application at VIN=60V~80V Schematic Figure8. XL8002 System Application at VIN=60V~80V Efficiency Curve Rev 1.2 www.xlsemi.com 7 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Table1: Figure7 Input VIN=60V/72V/80V system parameters table: LED String 1W*N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 VIN=60V VIN=72V VIN=80V FOSC Pout Efficiency FOSC Pout Efficiency FOSC Pout Efficiency 27.54K 45.90K 61.79K 74.70K 85.92K 94.64K 101.06K 105.65K 108.26K 109.06K 107.72K 104.57K 98.61K 88.21K 74.63K 46.44K 1.04W 1.99W 2.94W 3.83W 4.75W 5.63W 6.48W 7.36W 8.21W 9.10W 10.01W 10.91W 11.92W 12.92W 13.87W 15.62W 78.7% 87.4% 90.7% 92.4% 93.1% 93.8% 94.8% 95.1% 95.7% 96.0% 96.5% 97.2% 97.5% 97.4% 98.4% 98.6% 25.41K 45.76K 61.10K 75.13K 87.70K 98.50K 107.44K 114.66K 120.15K 124.10K 126.54K 126.90K 125.62K 122.06K 116.52K 99.20K 89.37K 75.17K 0.97W 2.02W 2.89W 3.79W 4.70W 5.61W 6.45W 7.37W 8.24W 9.13W 10.12W 10.97W 11.92W 12.94W 13.94W 15.77W 16.69W 17.64W 78.9% 87.4% 89.2% 90.6% 91.8% 93.7% 93.2% 94.0% 94.6% 95.3% 95.6% 95.9% 96.2% 96.6% 97.2% 97.7% 97.8% 97.9% 28.84K 46.98K 63.69K 78.04K 91.51K 103.35K 113.48K 121.91K 129.09K 134.73K 138.71K 141.32K 142.28K 141.32K 137.62K 121.04K 113.56K 103.65K 1.14W 2.09W 3.04W 3.92W 4.85W 5.78W 6.66W 7.52W 8.39W 9.29W 10.16W 11.03W 12.00W 13.02W 13.95W 15.84W 16.37W 17.36W 50.8% 62.2% 71.6% 76.6% 80.7% 82.9% 84.9% 86.2% 85.9% 87.9% 88.7% 90.0% 90.2% 89.8% 90.2% 92.0% 92.6% 93.5% [2] Typical System Application (VIN=36V~60V) Figure9. XL8002 System Application at VIN=36V~60V Schematic Rev 1.2 www.xlsemi.com 8 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Figure10. XL8002 System Application at VIN=36V~60V Efficiency Curve Table2: Figure9 Input VIN=36V/48V system parameters table: LED String 1W*N 1 2 3 4 5 6 7 8 9 10 11 12 VIN=36V VIN=48V FOSC Pout Efficiency FOSC Pout Efficiency 28.83K 45.06K 56.98K 64.58K 68.53K 68.66K 65.21K 58.26K 48.75K 34.20K 1.09W 2.05W 2.99W 3.88W 4.77W 5.68W 6.57W 7.36W 8.33W 9.29W 82.0% 90.2% 92.3% 93.6% 94.8% 96.3% 96.6% 96.0% 97.7% 98.3% 29.18K 46.81K 61.45K 72.05K 80.32K 85.95K 88.95K 89.37K 87.31K 82.56K 1.10W 2.06W 2.98W 3.88W 4.76W 5.65W 6.52W 7.38W 8.24W 9.14W 82.0% 87.4% 90.1% 92.9% 94.5% 94.9% 95.7% 96.2% 96.5% 97.2% 74.92K 62.77K 10.06W 10.92W 97.6% 96.1% Rev 1.2 www.xlsemi.com 9 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 [3] Typical System Application (VIN=12V~36V) Figure11. XL8002 System Application at VIN=12V~36V Schematic Figure12. XL8002 System Application at VIN=12V~36V Efficiency Curve Table3: Figure11 Input VIN=12V/24V system parameters table: LED String 1W*N 1 2 3 4 5 6 VIN=12V FOSC Pout 22.75K 24.18K 10.37K 1.06W 2.02W 3.10W VIN=24V Efficiency FOSC Pout 84.2% 92.8% 96.4% 26.42K 39.74K 46.63K 1.01W 1.96W 2.91W 82.3% 90.8% 94.1% 47.25K 42.17K 31.13K 3.80W 4.70W 5.61W 95.5% 96.6% 97.2% Rev 1.2 Efficiency www.xlsemi.com 10 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 [4] Typical System Application (VIN=60V~80V, Output Series 3W LED) Figure13. XL8002 System Application at VIN=60V~80V Schematic Figure14. XL8002 System Application at VIN=60V~80V Efficiency Curve Rev 1.2 www.xlsemi.com 11 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Table4: Figure13 Input VIN=60V/72V system parameters table: LED String 3W*N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 VIN=60V VIN=72V FOSC Pout Efficiency FOSC Pout Efficiency 29.69K 49.15K 67.05K 79.40K 90.69K 99.29K 105.99K 110.14K 112.33K 112.21K 110.21K 106.33K 100.82K 92.68K 3.09W 6.04W 8.92W 11.68W 14.40W 16.99W 19.68W 22.24W 24.62W 27.43W 29.95W 32.32W 34.72W 37.37W 76.8% 85.8% 86.8% 91.7% 93.3% 94.0% 94.7% 95.2% 94.1% 96.2% 96.4% 96.9% 97.0% 97.4% 30.19K 49.44K 66.47K 80.02K 92.67K 103.38K 112.28K 119.03K 124.22K 127.71K 129.30K 129.88K 125.21K 122.24K 3.31W 6.28W 9.19W 11.76W 14.47W 17.11W 19.72W 22.30W 24.90W 27.42W 30.02W 32.44W 35.28W 37.92W 77.9% 85.4% 89.1% 90.6% 92.1% 93.1% 94.0% 94.3% 94.9% 95.1% 95.8% 95.9% 96.2% 96.9% 119.06K 112.73K 103.35K 93.18K 40.50W 42.86W 45.47W 47.89W 96.9% 97.3% 97.6% 97.6% Schottky Diode Selection Table VR 20V 30V 40V 50V 60V 70V 80V 90V 100V 1A 1N5817 1N5818 1N5819 SS32 SS33 SS34 SS35 SS36 SS37 SS38 SS39 SS310 3A 1N5820 1N5821 1N5822 SK32 SK33 SK34 SK35 SK36 SK37 SK38 SK39 S310 Rev 1.2 MBR320 MBR330 MBR340 MBR350 MBR360 SR302 SR303 SR304 SR305 SR306 SR307 SR308 SR309 SR310 www.xlsemi.com 12 XLSEMI Datasheet 80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002 Package Information TO263-5L Symbol A B C C2 D E e F L L2 Dimensions In Min. 4.06 0.71 0.36 1.14 8.38 9.78 1.57 6.60 - Millimeters Max. 4.83 1.02 0.76 1.40 8.89 10.54 1.85 7.11 15.35 1.40 Rev 1.2 Dimensions In Min. 0.160 0.028 0.014 0.045 0.330 0.385 0.062 0.260 - Inches Max. 0.190 0.040 0.030 0.055 0.350 0.415 0.073 0.280 0.604 0.055 www.xlsemi.com 13