Single Stage Flyback And PFC Controller With CV/CC Control For Adapters and Chargers

SY5011 is a single stage Flyback and PFC controller with several features to enhance performance of Flyback converters. Both current and voltage regulation are achieved by primary side control technology for low cost application. To achieve higher efficiency and better EMI performance, SY5011 drives • Primary side CV/CC control eliminates the optocoupler.\r\n• Valley turn-on of the primary MOSFET to achieve low switching losses\r\n• Internal high current MOSFET driver: 1A sourcing and 2A sinking\r\n• Power factor >0.90 with single-stage conversion\r\n• Low start up current: 15µA typical\r\n• Ma;

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