XL8002品牌授权规格书

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XLSEMI

80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002

Features

n n n n n n n n

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.

n Available in TO263-5L package. n Up to 98% efficiency.

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.

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

n LED Lighting & LED LAMP n General purpose LED lighting

Figure1. Package Type of XL8002

Rev 1.1

XLSEMI

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 1.1

XLSEMI

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 1.1

XLSEMI

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 1.1

XLSEMI

80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002

Ordering Information

Package

Temperature Range

Part Number Lead Free XL8002E1 XL8002TRE1

Marking ID Lead Free XL8002E1 XL8002E1

Packing Type Tube Tape & Reel

XLSEMI Pb-free products, as designated with “E1” suffix in the par number, are RoHS compliant.

Absolute Maximum Ratings（Note1）

Parameter

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)

Symbol Vin PD RJA TJ TSTG TLEAD

Value -0.3 to 90 Internally limited

30 -40 to 125 -65 to 150 260 >3000

Unit V mW ºC/W 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 1.1

XLSEMI Preliminary 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 Efficiency

Parameter CSP Voltage

Test Condition VIN=72V; Iled=300mA; Series 1~18 1W LED VIN=72V; Iled=300mA;

Pout=16W

Min. Typ. Max. Unit 96 -

100 98

104 -

mV %

Electrical Characteristics (DC Parameters)

Parameters

Input operation voltage Switching Frequency Max. Duty Cycle

VDMOS Drain-Source Breakdown Voltage VDMOS

Drain-Source on resistor Thermal Shutdown Thermal Shutdown Window

Symbol VIN Fosc DMAX VBRDS RDSON OTP

Test Condition

Figure4 (12*1W)

VIN=72V

VGS=0V, IDS=250uA IDS=1A, VGS=8V

Min. 12 102 90

Typ. Max. 127 85 100 160 20

80 152 120

Unit V KHz % V mOhm

C C

Rev 1.1

XLSEMI Preliminary 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 1.1

XLSEMI Preliminary 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

FOSC 27.K 45.90K 61.79K 74.70K 85.92K 94.K 101.06K 105.65K 108.26K 109.06K 107.72K 104.57K 98.61K 88.21K 74.63K 46.44K

Pout 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

Efficiency 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%

FOSC 25.41K 45.76K 61.10K 75.13K 87.70K 98.50K 107.44K 114.66K 120.15K 124.10K 126.K 126.90K 125.62K 122.06K 116.52K 99.20K .37K 75.17K

VIN=72V Pout 0.97W 2.02W 2.W 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.W

Efficiency 78.9% 87.4% .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%

FOSC 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

VIN=80V Pout 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

Efficiency 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% .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 1.1

XLSEMI Preliminary 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

FOSC 28.83K 45.06K 56.98K .58K 68.53K 68.66K 65.21K 58.26K 48.75K 34.20K

Pout 1.09W 2.05W 2.99W 3.88W 4.77W 5.68W 6.57W 7.36W 8.33W 9.29W

Efficiency 82.0% 90.2% 92.3% 93.6% 94.8% 96.3% 96.6% 96.0% 97.7% 98.3%

FOSC 29.18K 46.81K 61.45K 72.05K 80.32K 85.95K 88.95K .37K 87.31K 82.56K 74.92K 62.77K

VIN=48V Pout 1.10W 2.06W 2.98W 3.88W 4.76W 5.65W 6.52W 7.38W 8.24W 9.14W 10.06W 10.92W

Efficiency 82.0% 87.4% 90.1% 92.9% 94.5% 94.9% 95.7% 96.2% 96.5% 97.2% 97.6% 96.1%

Rev 1.1

XLSEMI Preliminary 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 22.75K 24.18K 10.37K

Pout 1.06W 2.02W 3.10W

Efficiency 84.2% 92.8% 96.4%

FOSC 26.42K 39.74K 46.63K 47.25K 42.17K 31.13K

VIN=24V Pout 1.01W 1.96W 2.91W 3.80W 4.70W 5.61W

Efficiency 82.3% 90.8% 94.1% 95.5% 96.6% 97.2%

Rev 1.1

XLSEMI Preliminary 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 1.1

XLSEMI Preliminary 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

FOSC 29.69K 49.15K 67.05K 79.4K 90.69K 99.29K 105.99K 110.14K 112.33K 112.21K 110.21K 106.33K 100.82K 92.68K

Pout 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

Efficiency 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%

FOSC 30.19K 49.44K 66.47K 80.02K 92.67K 103.38K 112.28K 119.03K 124.22K 127.71K 129.3K 129.88K 125.21K 122.24K 119.06K 112.73K 103.35K 93.18K

VIN=72V Pout 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 40.50W 42.86W 45.47W 47.W

Efficiency 77.9% 85.4% .1% 90.6% 92.1% 93.1% 94.0% 94.3% 94.9% 95.1% 95.8% 95.9% 96.2% 96.9% 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

SK32 SK33 SK34 SK35 SK36 SK37 SK38 SK39 S310

3A 1N5820 1N5821 1N5822

MBR320 MBR330 MBR340 MBR350 MBR360

SR302 SR303 SR304 SR305 SR306 SR307 SR308 SR309 SR310

Rev 1.1

XLSEMI Preliminary Datasheet

80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002

Package Information TO263-5L

Rev 1.1

XLSEMI

80V 1A High Efficiency Buck PFM LED Constant Current Driver XL8002

Features

n Operation Voltage DC 12V~80V. n 0.1V current sense voltage reference. n Directly drive 1~18 Series 1W/3W LED. n Excellent line and load regulation.

n Internal Optimize Power HV-MOSFET. n Built in Thermal Shutdown Function. n Built in Current Limiting Function. n

Built in Soft-Start Circuit.

n Available in TO263-5L package. n Up to 98% efficiency.

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.

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