80V 0.5A Switching Current Buck PFM LED Constant Current Driver XL8003E1
|
Product model
| Input Voltage | Max. output voltage
| Max. output current
| Switching frequency
| Feedback voltage
| Package
|
XL8003
| 24V ~ 80V
| 3～8 LED series
| 0.5A
| PFM
| Adj (0.2V)
| SOP8L |
General Description of XL8003 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.
The document describes a high efficiency LED driver desi gned to drive an LED driver at a current of 300mA from an input voltage range of 24 VDC to80 VDC, output support 3~8 series 1W LED.
The XL8003 also provides a sophisticated range of protection features including auto-restart for control loop open/short faults and output short-circuit conditions. Accurate hysteretic thermal shutdown ensures safe average PCB temperatures under all cond itions. Design with very low parts count.
Features of XL8003● Wide 24V to 80V 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%.
● 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 SOIC-8 package.
Applications of XL8003
● EBIKE LED Lighting
● LED Lighting & LED LAMP
● General purpose LED lighting
Pin Configurations of XL8003
Pin Description of XL8003
Pin Number
| Pin Name
| Description
|
1
| NC
| No Connected.
|
2
| VDD
| The chip supply voltage.
|
3
| CSP
| Current Sense Positive Terminal.
|
4
| SW | Output Switching Pin
|
5，6
| VIN | Input high voltage Pin. (Operation voltage 24V~ 80V)
|
| 7，8 | CSN
| Current Sense Negative Terminal.
|
