XL8002 Datasheet | XLSEMI

Features - Maximum Input Voltage 100V - 0.1V current sense voltage reference - Directly drive 1~18 Series 1W/3W LED - Excellent line and load regulation - Internal Optimize Power HV-MOSFET - Built in Thermal Shutdown Function - Built in Current Limiting Function - Built in Soft-Start Circuit - Available in TO263-5L package - Up to 98% efficiency General Description The XL8002 is a monolithic high voltage switching regulator with PFM that is specifically designed to operate from a 12V~80V DC power supply. The XL8002 is a high efficiency LED driver switching regulator. The LED string is driven at DC constant current rather than constant voltage, thus providing constant light output and enhanced reliability. Applications - LED Lighting & LED LAMP - General purpose LED lighting Figure1. Package Type of XL8002 Rev 1.4 .xlsemi. 100V 1A High Efficiency Buck PFM LED Constant Current Driver Pin Configurations TO263-5L 5 4 3 2 1 CSP CSN VIN VREG START Metal Tab VIN Figure2. Pin Configuration of XL8002 (Top View) Table 1 Pin Description Pin Number 1 2 3 4 5 Pin Name START VREG VIN CSN CSP Description Internal soft start Pin. Internal Voltage Regulation Pin. (The VREG is about 8V) Input high voltage Pin. Current Sense Negative Pin. Current Sense Positive Pin. (The current sense voltage is 0.1V) Rev 1.4 .xlsemi. 100V 1A High Efficiency Buck PFM LED Constant Current Driver Function Block 3.3V 0.1V 8V Reference...