Digi-Key's Reference Design Library is full of technical blueprints that have been designed and verified to solve system-level problems and reduce time to market.
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RDK-801 is a 100 W LED ballast with 3-way dimming function. The LED ballast is designed to provide a 48 V output voltage across 0 mA to 2080 mA output current load with 3-way dimmable constant current at 48 V – 36 V LED voltage string. The design is optimized to operate from an input voltage range of 100 VAC to 277 VAC.
Demonstration circuit 994 features the LT3003 three channel LED ballaster with PWM in a 10-lead MSOP thermally enhanced MSE package. The demonstration circuit is designed to ballast three channels of LED current from 100mA to 350mA per channel. The PWM dimming function of the LT3003 eliminates the need for discrete MOSFETs. The LT3003 internally performs the level-shift required for non-ground re…