XL8005

XLSEMI 100V 0.5A Switching Current Buck PFM LED Constant Current Driver Features n n n n n n n n n n n n n 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. 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 SOIC-8 package. Applications n n n EBIKE LED Lighting LED Lighting & LED LAMP General purpose lighting Figure1. Package Type of XL8005 Rev 1.0 1 www.xlsemi.com 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 vo...