升压型LED恒流驱动器芯片XL6003.pdf

Datasheet 400KHz 42V 2A Sw itching Current Boost LED Constant Current Driver XL6003 Features General Description n Wide 5V to 18V Input Voltage Range The XL6003 regulator is fixed frequency PWM n 0.22V FB adjustable LED drive current Boost (step-up) LED constant current driver, n Directly drive 6 Series 1W LED at capable of driving Series 1W LED units with excellent line and load regulation. The regulator is VIN= 12V simple to use because it includes internal frequency n Fixed 400KHz Switching Frequency compensation and a fixed-frequency oscillator so n Max. 2A Switching Current Capability that it requires a minimum number of external n Up to 92% efficiency components to work. n Excellent line and load regulation The XL6003 could directly drive 6 Series 1W LED n EN PIN TTL shutdown capability units at VIN 12V . With PWM Dimming Function n Internal Optimize Power MOSFET The PWM control circuit is able to adjust the n Built in Soft-Start Function duty ratio linearly from 0 to 95%. An enable n Built in Frequency Compensation function, an over current protection function n Built in Thermal Shutdown Function is built inside. An internal compensation n Built in Current Limit Function block is built in to minimize external n Available in SOP8 package component count. Applications n LED Lighting n Boost constant current driver