XLSEMI
100V 0.5A Switching Current Buck PFM LED Constant Current Driver
Features
Wide 24V to 100V Input Voltage Range
0.2V current sense voltage reference.
Directly drive 3~8 series 1W LED.
Excellent line and load regulation.
High efficiency up to 96%.
Minimum Drop Out 6V.
Internal optimize power HV-MOSFET.
Built in thermal shutdown function.
Built in UVLO function.
Built in current limiting function.
Built in LED open & short protection.
Built in soft-start circuit.
Available in SOP8L package.
Datasheet
XL8005
General Description
The XL8005 is a monolithic high voltage
switching regulator with PFM that is
specifically designed to operate from a
24V~100V DC supply.
The XL8005 is a high efficiency LED driver
switching regulator. The LED string is driven
at DC constant current rather than constant
voltage, thus providing constant current
output and enhanced reliability.
Applications
EBIKE LED Lighting
LED Lighting & LED LAMP
General purpose lighting
Figure1. Package Type of XL8005
Rev 1.0
1
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XLSEMI
100V 0.5A Switching Current Buck PFM LED Constant Current Driver
Pin Configurations
NC
VDD
CSP
SW
1
2
XL8005
3
4
6
5
VIN
VIN
8
7
CSN
CSN
Datasheet
XL8005
Figure2. Pin Configuration of XL8005 (Top View)
Table 1 Pin Description
Pin Number
1
2
3
4
5, 6
7, 8
Pin Name
NC
VDD
CSP
SW
VIN
CSN
Description
No Connected.
The chip supply voltage.
Current Sense Positive Terminal.
Output Switching Pin
Input high voltage Pin. (Operation voltage 24V~ 100V)
Current Sense Negative Terminal.
Function Block
Figure3. Function Block Diagram of XL8005
Rev 1.0
2
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XLSEMI
100V 0.5A Switching Current Buck PFM LED Constant Current Driver
Typical application circuit
R1 330K
C1
2.2uF
Ceramic
VDD
VIN
2
5,6
3
4
CSP
SW
RCS
0.68Ω
L1
1mh/0.6A
R2
30K
0.25W
DF
S210
DD
BAV21W
Datasheet
XL8005
XL8005
DC
24V~100V
7,8
Cin
33uf/100V
CSN
Cout
100uf/35V
ILED=0.2V/RCS
Output Series 3~8 * 1W LED
[1] Input DC 24V~100V.
[2] Output Constant Current Drive Series 3~8 * 1W LED.
[3] Support Output LED Open & Short Protection.
Figure4. XL8005 Typical Application (3W~8W LED lamp)
Ordering Information
Order Information
XL8005E1
Marking ID
XL8005E1
Package Type
SOP8L
Packing Type
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
Power Dissipation
Thermal Resistance (SOP-8L)
(Junction to Ambient, No Heatsink, Free Air)
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
ESD (HBM)
Symbol
Vin
P
D
R
JA
T
J
T
STG
T
LEAD
Value
-0.3 to 120
Internally limited
100
-40 to 125
-65 to 150
260
3000
Unit
V
mW
ºC/W
ºC
ºC
ºC
V
Rev 1.0
3
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XLSEMI
100V 0.5A Switching Current Buck PFM LED Constant Current Driver
Datasheet
XL8005
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.
XL8005 Electrical Characteristics
T
a
= 25℃;unless otherwise specified. Reference test circuit figure4
Symbol
VCSP
Efficiency
Efficiency
Efficiency
Efficiency
Parameter
CSP
Voltage
Test Condition
VIN = 24V to 100V,
Iled=0.3A, Pout=8W
VIN=48V, Iled=0.3A, Pout=8W
VIN=60V, Iled=0.3A, Pout=8W
VIN=72V, Iled=0.3A, Pout=8W
VIN=72V, Iled=0.3A, Pout=8W
Min.
190
-
-
-
-
Typ.
200
94.8
94.0
92.8
92.3
Max.
210
-
-
-
-
Unit
mV
%
%
%
%
ŋ
ŋ
ŋ
ŋ
Electrical Characteristics (DC Parameters)
Parameters
Input operation voltage
Switching Frequency
Switching Frequency
Switching Frequency
Switching Frequency
DMOS
Drain-Source
Breakdown Voltage
DMOS
Drain-Source on resistor
Thermal Shutdown
Thermal Shutdown Window
Symbol
VIN
Fosc
Fosc
Fosc
Fosc
V
BRDS
R
DSON
OTP
Figure4 (8*1W)
VIN=48V
Figure4 (8*1W)
VIN=60V
Figure4 (8*1W)
VIN=72V
Figure4 (8*1W)
VIN=84V
V
GS
=0V, I
DS
=250uA
I
DS
=0.5A, V
GS
=10V
Tj
Test Condition
Min.
24
47.4
56.2
61.2
64.1
120
0.1
165
25
0.15
59.3
70.3
76.5
80.2
Typ.
Max.
100
71.1
84.3
91.8
96.2
Unit
V
KHz
KHz
KHz
KHz
V
Ohm
0
0
C
C
Rev 1.0
4
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XLSEMI
100V 0.5A Switching Current Buck PFM LED Constant Current Driver
[1] Typical application circuit (3W ~ 8W)
R1 330K
C1
2.2uF
Ceramic
VDD
VIN
2
5,6
3
4
CSP
SW
RCS
0.68Ω
L1
1mh/0.6A
R2
30K
0.25W
DF
S210
DD
BAV21W
Datasheet
XL8005
XL8005
DC
24V~100V
7,8
Cin
33uf/100V
CSN
Cout
100uf/35V
ILED=0.2V/RCS
Output Series 3~8 * 1W LED
[1] Input DC 24V~100V.
[2] Output Constant Current Drive Series 3~8 * 1W LED.
[3] Support Output LED Open & Short Protection.
Efficiency VS LED String
98
96
94
92
90
88
Efficiency(%)
86
84
82
80
78
76
74
72
70
3
4
5
6
7
8
VIN=24V,ILED=300mA
VIN=36V,ILED=300mA
VIN=48V,ILED=300mA
VIN=60V,ILED=300mA
VIN=72V,ILED=300mA
VIN=84V,ILED=300mA
VIN=96V,ILED=300mA
LED String(N*1W)
Figure5. XL8005 System Application& efficiency curve
Rev 1.0
5
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