SY5002C Datasheet | Silergy

Applications Note: SY5002C Flyback Controller With Primary Side CV/CC Control For Adapters and Chargers General Description SY5002C is a single stage Flyback controller targeting at Constant Current / Constant Voltage (CC/CV) applications. Both current and voltage regulation are achieved by primary side control technology for low cost application. To achieve higher efficiency and better EMI performance, SY5002C drives Flyback converters in the Quasi-Resonant mode and adaptive PWM/PFM control. In addition, SY5002C has cable pensation to regulate the output voltage for better load regulation at cable terminal. Ordering Information SY5002 - (- - )- Tempera ture Code Packa ge Code Optional Spec Code Ordering Number SY5002CABC Package type Note SOT23-6 ---- Features - Primary side CV/CC control eliminates the optocoupler. - Valley turn-on of the primary MOSFET to achieve low switching losses - Internal CC/CV loop pensation - The self-adaption pensation for better stability - PWM/PFM control for higher average efficiency - Fast dynamic load transient response - Cable pensation for better load regulation - Low start up current: 4µA Max - Reliable protections for OVP, SCP, OTP - Reliable protections for safety requirement - Maximum switching frequency limitation 125kHz - pact package: SOT23-6 Applications - AC/DC adapters - Battery Chargers Typical Applications DB1 C1 C2 R1...