180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Features
n Wide 3.6V to 32V Input Voltage Range n 0.22V FB adjustable LED drive current n Directly drive 11 Series 1W LED at
VIN>=12V
n Fixed 180KHz Switching Frequency n Max. 5A Switching Current Capability n Up to 94% efficiency
n Excellent line and load regulation
n EN PIN TTL shutdown capability &
With PWM Dimming Function n Internal Optimize Power MOSFET 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 TO252-5L package
General Description
The XL6005 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W/3W/5W 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 XL6005 could directly drive 11 Series 1W LED units at VIN>12V .
Applications
n n n n
LED Lighting
Boost constant current driver Monitor LED Backlighting 7’ to 15’ LCD Panels
The PWM control circuit is able to adjust the duty ratio linearly from 0 to 95%. 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 XL6005
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Pin Configurations
Figure2. Pin Configuration of XL6005 (Top View)
Table 1 Pin Description
Pin Number
1
2 3 4 5
Pin Name GND EN SW VIN FB
Description Ground Pin.
Enable Pin. Drive EN pin low to turn off the device, drive it high to turn it on. Floating is default high. Power Switch Output Pin (SW).
Supply Voltage Input Pin. XL6005 operates from a 3.6V to 32V 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.
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Function Block
Figure3. Function Block Diagram of XL6005
Typical Application Circuit
Figure4. XL6005 Typical Application Circuit
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Ordering Information
Package
Temperature Range
Part Number Lead Free XL6005E1 XL6005TRE1
Marking ID Lead Free XL6005E1 XL6005E1
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
Feedback Pin Voltage EN Pin Voltage
Output Switch Pin Voltage Power Dissipation Thermal Resistance (TO252-5L)
(Junction to Ambient, No Heatsink, Free Air) Operating Junction Temperature Storage Temperature
Lead Temperature (Soldering, 10 sec) ESD (HBM)
Symbol Vin VFB VEN VOutput PD RJA TJ TSTG TLEAD
Value -0.3 to 36 -0.3 to Vin -0.3 to Vin -0.3 to 60 Internally limited 50 -40 to 125 -65 to 150 260 >2000
Unit V V V 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.
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
XL6005 Electrical Characteristics
Ta = 25℃;unless otherwise specified. Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
System parameters test circuit figure4 VFB Efficiency
Feedback Voltage
Vin = 5V to 12V, Vout=24V
Iload=100mA Vin=12V ,Vout=24V
Iout=1A
209 -
220 92
231 -
mV %
ŋ
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 Input operation voltage Shutdown Supply Current Quiescent Supply Current Oscillator Frequency Switch Current Limit Output Power NMOS
Symbol Vin ISTBY Iq Fosc IL Rdson
Test Condition
VEN=0V VEN =2V, VFB =Vin
VFB =0 Vin=12V, ISW=4A High (Regulator ON) Low (Regulator OFF) VEN =2V (ON) VEN =0V (OFF)
VFB=0V
Min. 3.6 144
Typ. Max. 70 2.5 180 5 110 1.4 0.8 3 3 90
32 100 5 216 120
Unit V uA mA Khz A mohm
EN Pin Threshold EN Pin Input Leakage Current
Max. Duty Cycle
VEN IH IL DMAX
10 10
V uA uA %
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Schottky Diode Selection Table
Current Surface
Mount
1A
3A
√ √
5A
√
√ √ √
1N5823 SR502 SB520
1N5824 SR503 SB530 50WQ03
1N5825 SR504 SB540
SR505 SB550
SR506 SB560
√ √ √ √
1N5820 MBR320 SK32 SR302
1N5821 MBR330 SK33 30WQ03 31DQ03 SR303
1N5822 SK34
SK35
MBR360 SK36 SR306
MBR340 MBR350 30WQ04 30WQ05 31DQ04 31DQ05 SR304
SR305
Through VR (The same as system maximum input voltage)
Hole 20V 30V 40V 50V 60V
1N5817 1N5818 1N5819 √
50WQ04 50WQ05
Typical System Application for VIN=12V to driver 11 x 1W series LED units
Figure5. XL6005 System Parameters Test Circuit (12V ~11 x 1W LED)
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Typical System Application for VIN>=12V to driver 6 x 3W series LED units
Figure6. XL6005 System Parameters Test Circuit (12V ~ 6 x 3W LED)
Typical System Application for VIN>=24V to driver 11 x 3W series LED units
Figure7. XL6005 System Parameters Test Circuit (24V ~ 11 x 3W LED)
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Typical System Application for VIN>=12V to driver 11 series x 40 parallel
White LED Array
Figure8. XL6005 System Parameters Test Circuit (12V ~ 11 x 40 White LED)
Typical System Application for SEPIC Buck-Boost LED Driver
Figure9. XL6005 System Parameters Test Circuit (Buck-Boost LED Driver)
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Typical System Application for VIN>=12V to driver 6 x 3W series LED units With Dimming Function
Figure10. XL6005 System Parameters Test Circuit (12V ~ 6 x 3W LED with Dimming Function)
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver XL6005
Package Information
TO252-5L
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