SY5072B Datasheet | Silergy

Application Note: SY5072B Single-Phase Transition-Mode PFC Controller General Description Features The SY5072B is a constant voltage Transition-Mode boost controller with Power Factor Correction (PFC) function. Constant ON Time control is applied to achieve high PF and low THD without multiplier. It drives the Boost converter in the Quasi-Resonant mode for high efficiency and better EMI performance. It adopts special design to achieve quick start up and reliable protection for safety requirement. - Valley Turn-on to Achieve Low Switching Losses - Frequency Reduce in Light Load - Internal High Current MOSFET Driver: 70m A Sourcing and 400m A Sinking - MOSFET Over-Current Protection(OCP) - Internal THD Optimization to Achieve Low THD - Internal Transition Optimization - pact Package: SOT23-6 Ordering Information SY5072- (- - - ) Package Code Optional Spec Code Ordering Number SY5072BABT Package type Note SOT23-6 ---- Applications - AC Adapter Front End - LED Drivers and Luminaries Typical Applications Input DP DB LB COUT External supply RA CA CVIN 5...