This is an isolated, 25W, 0-10V dimmable LED driver design with >0.9 power factor (PF) which meets or exceeds commercial lighting PF and total harmonic distortion (THD) requirements. It is well suited for integral LED luminaires, or ballasts, that use high-brightness LED emitters. This design is optimized for a 500mA (max) LED output current and LED stack voltages ranging from 45 V to 55 V.
Features
-100-264VAC Input, 25W ouput, Single Stage LED Driver with Active Power Factor Correction (>0.9)
-500mA Constant Current Output with -Fast Startup -Operates with Standard 0-10V Dimmers with 9:1 Contrast Ratio
-Fully Tested Design for Use in Integral LED Downlight/Troffer Fixtures or as Stand Alone LED Driver Module
Parts Included:
LM321 Low Power Single Op Amp
LM393 Dual Differential Comparator
TPS92210 Constant-On Time Driver Controller with Cascoded MOSFET for LED Lighting
Learn more by downloading the reference design below
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