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Applications Note:SY5983
Single Stage Flyback and PFC Controller with Primary Side Control for LED Lighting
and integrates 0~10V transformer driver Preliminary Specification
General Description
Features
The SY5983 is a single stage Flyback and PFC controller targeting at LED isolate dimming applications, which can achieve up to 5% dimming level and high precision for all loading range. It is a primary side controller without applying any secondary feedback circuit for low cost, and drives the converter in the quasi-resonant mode to achieve higher efficiency. It keeps the converter in constant on time operation to achieve high power factor. It integrates 0~10V transformer driver and simply the peripheral.