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XLSEMI

XL8003 Datasheet Preview

XL8003 Datasheet

80V 0.5A Switching Current Buck PFM LED Constant Current Driver

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XLSEMI
80V 0.5A Switching Current Buck PFM LED Constant Current Driver
Datasheet
XL8003
Features
n Wide 24V to 80V Input Voltage Range
n 0.2V current sense voltage reference.
n Directly drive 3~8 series 1W LED.
n Excellent line and load regulation.
n High efficiency up to 96%.
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 Available in SOIC-8 package.
Applications
n EBIKE LED Lighting
n LED Lighting & LED LAMP
n General purpose lighting
General Description
The XL8003 is a monolithic high voltage
switching regulator with PFM that is
specifically designed to operate from a
24V~80V DC supply.
The XL8003 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.
Rev 1.2
Figure1. Package Type of XL8003
1




XLSEMI

XL8003 Datasheet Preview

XL8003 Datasheet

80V 0.5A Switching Current Buck PFM LED Constant Current Driver

No Preview Available !

XLSEMI
80V 0.5A Switching Current Buck PFM LED Constant Current Driver
Datasheet
XL8003
Pin Configurations
NC 1
8 CSN
VDD 2
7 CSN
XL8003
CSP 3
6 VIN
SW 4
5 VIN
Figure2. Pin Configuration of XL8003 (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~ 80V)
Current Sense Negative Terminal.
Function Block
Rev 1.2
Figure3. Function Block Diagram of XL8003
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
2


Part Number XL8003
Description 80V 0.5A Switching Current Buck PFM LED Constant Current Driver
Maker XLSEMI
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XL8003 Datasheet PDF





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