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XLSEMI |
XLSEMI
600V 0.5A Switching Current Buck PFM LED Constant Current Driver
Datasheet
XL5002
Features
n Operate from a rectified 85V~265V AC
mains supply.
n 0.1V current sense voltage reference.
n Directly drive 1~5 series 1W LED.
n Excellent line and load regulation.
n Internal optimize power HV-MOSFET.
n Built in thermal shutdown function.
n Built in UVLO function.
n Built in current limiting function.
n Built in LED open & short protection.
n Built in soft-start circuit.
n Support without electrolytic capacitor
System solution.
n Available in SOIC-8 package.
n PF > 0.9 (Power Factor) with suitable
External components.
General Description
The XL5002 is a monolithic high voltage
switching regulator with PFM that is
specifically designed to operate from a
rectified 85V~265V AC mains supply.
The XL5002 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
n E27, GU10, GU5.3, B22 lamp device
n LED Lighting & LED LAMP
n General purpose lighting
Figure1. Package Type of XL5002
Rev 3.0
1
XLSEMI
600V 0.5A Switching Current Buck PFM LED Constant Current Driver
Pin Configurations
Datasheet
XL5002
START 1
8 CSN
VREG
CSP
27
XL5002
36
CSN
VIN
SW 4
5 VIN
Figure2. Pin Configuration of XL5002 (Top View)
Table 1 Pin Description
Pin Number
1
2
3
4
5,6
7,8
Pin Name
START
VREG
CSP
SW
VIN
CSN
Description
Internal start up Pin.
Internal Voltage Regulation Pin. (The VREG is about 8V)
Current Sense Positive Pin. (The current sense voltage is 0.1V)
Output Switching Pin
Input high voltage Pin. (Operation voltage 100V~400V)
Current Sense Negative Pin.
Rev 3.0
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
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