April 2007
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A single chip (Combo IC) from the company integrates a power factor corrector (PFC) with a half-bridge controller and all the relevant drivers and logic for an electronic ballast IC for fluorescent lamps. Combining the functions on a single IC is said to generate more light from less energy, while ensuring full compliance with safety and power consumption regulations. The L6585 one-chip solution is said to be the first on the market to enable EOL (End-of-Life) detection in either “lamp-to-ground” or “block capacitor-to-ground” ballast configurations. According to the company, for the first time, manufacturers can choose how to design an application to simplify board qualification and pass ballast security tests. STMicroelectronics


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