• 2.5%~100.0% Dimming Range
• CV Mode for Bias Supply when PWM=0.0%
• Wide Range Output Voltage Application
• Good Load Regulation
• Primary Side Control Eliminates the Opto-coupler
• Valley Turn-on of the Primary MOSFET to Achieve Low Switching Losses
• 200mA Sourcing Current and 600mA Sinking Current Drive Capability
• Low Start up Current: 34μA Typical
• Reliable Short LED and Open LED Protection
• Low Power Frequency Ripple
• Compact Package: SO8 

The SY5882S is a DC/DC Flyback controller targeting at LED Dimming applications, which can achieve up to 2.5% dimming level and high precision for all loading range. It adapts to a wide range of output voltage applications and has good load regulation. It is a primary side controller without applying any secondary feedback circuit for low cost, and drives the converter in the quasiresonant mode to achieve higher efficiency. It keeps the converter in peak current control to achieve low power frequency ripple.