Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver
Features
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XL6005
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 .
Wide 3.6V to 32V Input Voltage Range
0.22V FB adjustable LED drive current
Directly drive 11 Series 1W LED at
VIN>=12V
Fixed 180KHz Switching Frequency
Max. 4A Switching Current Capability
Up to 94% efficiency
Excellent line and load regulation
EN PIN TTL shutdown capability &
With PWM Dimming Function
Internal Optimize Power MOSFET
Built in Soft-Start Function
Built in Frequency Compensation
Built in Thermal Shutdown Function
Built in Current Limit Function
Available in TO252-5L package
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.
Applications
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LED Lighting
Boost constant current driver
Monitor LED Backlighting
7’ to 15’ LCD Panels
Figure1. Package Type of XL6005
Rev 1.5
1
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver
Pin Configurations
XL6005
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.
Rev 1.5
2
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver
Function Block
XL6005
Figure3. Function Block Diagram of XL6005
Typical Application Circuit
Figure4. XL6005 Typical Application Circuit
Rev 1.5
3
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver
Ordering Information
Order Information
XL6005E1
Marking ID
XL6005E1
Package Type
TO252-5L
XL6005
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
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
V
FB
V
EN
V
Output
P
D
R
JA
T
J
T
STG
T
LEAD
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.
Rev 1.5
4
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Datasheet
180KHz 60V 4A Switching Current Boost LED Constant Current Driver
XL6005 Electrical Characteristics
T
a
= 25℃;unless otherwise specified.
Symbol
Parameter
Test Condition
Min.
Typ.
XL6005
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, T
a
=
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
I
STBY
I
q
Fosc
I
L
Rdson
V
FB
=0
Vin=12V,
I
SW
=4A
High (Regulator ON)
Low (Regulator OFF)
V
EN
=2V (ON)
V
EN
=0V (OFF)
V
FB
=0V
V
EN
=0V
V
EN
=2V,
V
FB
=Vin
144
Test Condition
Min.
3.6
70
2.5
180
4
110
1.4
0.8
3
3
90
10
10
120
Typ.
Max.
32
100
5
216
Unit
V
uA
mA
Khz
A
mohm
EN Pin Threshold
EN Pin Input Leakage
Current
Max. Duty Cycle
V
EN
I
H
I
L
D
MAX
V
uA
uA
%
Rev 1.5
5
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