SY5802

SY5802 Single Stage Flyback And PFC Controller With Primary Side Control For LED Lighting and PWM Dimming or Analog Dimming device option Preliminary datasheet General Description The SY5802 is a single stage Flyback and PFC controller targeting at LED lighting applications with PWM/Analog dimming. It is a primary side controller without applying any secondary feedback circuit for low cost, and drives the Flyback converter in the quasiresonant mode to achieve higher efficiency. It keeps the Flyback converter in constant on time operation to achieve high power factor. Ordering Information SY5802 □(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number SY5802FBC SY5802FAC Package type MSOP10 SO8 Note ------- Features Primary side control eliminates the opto-coupler. PWM or Analog Dimming. Valley turn-on of the primary MOSFET to achieve low switching losses 0.3V primary current sense reference voltage leads to...