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IRPLCFL5U Datasheet(PDF) 1 Page - International Rectifier |
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IRPLCFL5U Datasheet(HTML) 1 Page - International Rectifier |
1 / 15 page www.irf.com 1 IRPLCFL5U International Rectifier • 233 Kansas Street, El Segundo, CA 90245 USA ! CFL Ballast for 26W/Spiral Lamp, 120VAC Input By Cecilia Contenti TOPICS COVERED Overview Functional Description Features Fault Conditions Electrical Characteristics RPLCFL5U Layout IR2520D Ballast Control IC Design Procedure to adapt the Circuit Description design to different lamp types 1. Overview The IRPLCFL5U reference design is an electronic ballast for driving 26W compact fluorescent lamps from 120VAC. The circuit provides all of the necessary functions for preheat, ignition and on- state operation of the lamp and also includes the EMI filter and the rectification stage. The circuit is built around the IR2520D Ballast Control IC. The IR2520D provides adjustable preheat time, adjust- able run frequency to set the lamp power, high starting frequency for soft start and to avoid lamp flash, fault protection for open filament condition and failure to strike, low AC line protection and auto-restart after line brownout conditions. The IR2520D is a low-cost solution specific for CFL applications. The IR2520D has only 8 pins and allows the component count for the complete ballast to be reduced down to 20 components. 2. Features Programmable run frequency Programmable preheat time Open filaments and no-lamp protection Failure to Strike and deactivated-lamp protection Low AC line protection |
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