Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
1
Featur
n Wide 3.6V to 24V Input Voltage Range
n 0.22V FB adjustable LED drive current
n Directly drive 6 Seri 1W LED at
VIN>=12V
n Fixed 400KHz Switching Frequency
n Max. 2A Switching Current Capability
n Up to 92% 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 SOP8 package
Applications
n LED Lighting
n Boost constant current driver
n Monitor LED Backlighting
n 7’ to 15’ LCD Panels
General Dcription
The XL6003 regulator is fixed frequency PWM
Boost (step-up) LED constant current driver,
capable of driving Seri 1W LED units with
excellent line and load regulation. The regulator is
simple to use because it includ internal frequency
compensation and a fixed-frequency oscillator so
that it requir a minimum nuer of external
components to work.
The XL6003 could directly drive 6 Seri 1W LED
units at VIN>12V .
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 Te of XL6003 Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
2
Pin Configurations
XL6003
1
3
5
2
4 SW
EN
FB
VIN
NC
6
7
8
SW
GND
GND
Figure2. Pin Configuration of XL6003 ( View)
Table 1 Pin Dcription
Pin Nuer Pin Name Dcription
1 EN
Enable Pin. Drive EN pin low to turn off the device, drive it
high to turn it on. Floating is default high.
2 VIN
Supply Voltage Input Pin. XL6003 operat from a 3.6V to 24V
DC voltage. B Vin to GND with a suitably large capacitor
to eliminate ise on the input.
3 FB Feedback Pin (FB). The feedback thrhold voltage is 0.22V.
4 NC Connected.
5,6 SW
Power Switch Output Pin (SW). Output is the switch de that
suppli power to the output.
7,8 GND Ground Pin. Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
3
Function Block
Figure3. Function Block Diagram of XL6003
Tical Application Circuit
Figure4. XL6003 Tical Application Circuit Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
4
Ordering Information
Part Nuer Marking ID
Lead Free Lead Free
Packing Te
XL6003E1 XL6003E1 Tube
Package
Temperature
Range
XL6003TRE1 XL6003E1 Tape & Reel
XLSEMI Pb-free products, as dignated with “E1” suffix in the par nuer, are RoHS compliant.
Absolute Maximum Ratings（te1）
Parameter Syol Value Unit
Input Voltage Vin -0.3 to 26 V
Feedback Pin Voltage VFB
-0.3 to Vin V
EN Pin Voltage VEN
-0.3 to Vin V
Output Switch Pin Voltage VOutput
-0.3 to 60 V
Power Dissipation PD
Internally limited mW
Thermal Ristance (SOP8)
(Junction to Aient, Heatsink, Free Air)
RJA 100 ºC/W
Operating Junction Temperature TJ
-40 to 125 ºC
Storage Temperature TSTG
-65 to 150 ºC
Lead Temperature (Soldering, 10 sec) TLEAD 260 ºC
D (HBM) >2000 V
te1: Strs greater than those listed under Maximum Ratings may cause permanent damage
to the device. This is a strs rating only and functional operation of the device at the or any
other conditions above those indicated in the operation is t implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability. Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
5
XL6003 Electrical Characteristics
Ta = 25℃;unls otherwise specified.
Syol Parameter Tt Condition Min. T. Max. Unit
System parameters tt circuit figure4
VFB
Feedback
Voltage
Vin = 5V to 12V, Vout=24V
Iload=100mA
209 220 231 mV
Efficiency ?
Vin=12V ,Vout=24V
Iout=0.3A
- 92 - %
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 100uf/50V capacitor; Iout=100mA, Ta =
25℃; the others floating unls otherwise specified.
Parameters Syol Tt Condition Min. T. Max. Unit
Input operation voltage Vin 3.6 24 V
Shutdown Supply Current ISTBY VEN=0V 70 100 uA
Quicent Supply Current Iq
VEN =2V,
VFB =Vin
2.5 5 mA
Oscillator Frequency Fosc 320 400 480 Khz
Switch Current Limit IL VFB =0 2 A
Output Power NMOS Rdson
Vin=12V,
ISW=2A
110 120 mohm
EN Pin Thrhold VEN
High (Regulator ON)
Low (Regulator OFF)
1.4
0.8
V
EN P IH VEN =2V (ON) 3 10 uA
in Input Leakage
Current
IL VEN =0V (OFF) 3 10 uA
Max. Duty Cycle DMAX VFB=0V 90 % Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
6
Schottky Diode Selection Table
Current Surface
Mount
Through
Hole
VR (The same as system maximum input voltage)
20V 30V 40V 50V 60V
1A √ 1N5817 1N5818 1N5819
√ 1N5820 1N5821 1N5822
√ R320 R330 R340 R350 R360
√ SK32 SK33 SK34 SK35 SK36
√ 30WQ03 30WQ04 30WQ05
√ 31DQ03 31DQ04 31DQ05
3A
√ SR302 SR303 SR304 SR305 SR306
Tical System Application for VIN=5V to driver 3 x 1W seri LED units
XL6003
CIN
47uf /16V
D1 SK34
L 22uh/2A
+5V
2
7,8 1
3
5,6
GND
VIN
SW
FB
EN
ON
OFF
350mA
ILED=0.22/RS
Seri 3 1W LED
RS
COUT
47uf/35V
Figure5. XL6003 System Parameters Tt Circuit (5V ~ 3 x 1W LED) Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
7
Tical System Application for VIN>=12V to driver 6 x 1W seri LED units
Figure6. XL6003 System Parameters Tt Circuit (12V ~ 6 x 1W LED)
Tical System Application for VIN>=12V to driver 6 seri x 28 parallel
White LED Array
Figure7. XL6003 System Parameters Tt Circuit (12V ~ 6 x 28 White LED) Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
Tical System Application for SEPIC Buck-Boost LED Driver
Figure8. XL6003 System Parameters Tt Circuit (Buck-Boost LED Driver)
Tical System Application for VIN>=12V to driver 6 x 1W seri LED units
With Dimming Function
Figure9. XL6003 System Parameters Tt Circuit (12V ~ 6 x 1W LED with Dimming Function) Datasheet
400KHz 60V 2A Switching Current Boost LED Constant Current Driver XL6003
Rev 1.6
9
Package Information
SOP8 Package Mechanical Dimensions
