MC33260 Datasheet | onsemi

MC33260 Green Linet pact Power Factor Controller: Innovative Circuit for Cost Effective Solutions The MC33260 is a controller for Power Factor Correction preconverters meeting international standard requirements in electronic ballast and off--line power conversion applications. Designed to drive a free frequency discontinuous mode, it can also be synchronized and in any case, it Features very effective protections that ensure a safe and reliable operation. This circuit is also optimized to offer extremely pact and cost effective PFC solutions. While it requires a minimum number of external ponents, the MC33260 can control the follower boost operation that is an innovative mode allowing a drastic size reduction of both the inductor and the power switch. Ultimately, the solution system cost is significantly lowered. Also able to function in a traditional way (constant output voltage regulation level), any intermediary solutions can be easily implemented. This flexibility makes it ideal to optimally cope with a wide range of applications. General Features - Standard Constant Output Voltage or “Follower Boost” Mode - Switch Mode Operation: Voltage Mode - Latching PWM for Cycle--by--Cycle On--Time Control - Constant On--Time Operation That Saves the Use of an Extra Multiplier - Totem Pole Output Gate Drive - Undervoltage Lockout with Hysteresis - Low Startup and Operating Current - Improved Regulation Block Dynamic Behavior - Synchronization Capability - Internally Trimmed Reference Current Source - These are Pb--Free Devices Safety Features - Overvoltage Protection: Output Overvoltage Detection - Undervoltage Protection: Protection Against Open Loop - Effective Zero Current Detection - Accurate and Adjustable Maximum On--Time Limitation - Overcurrent Protection - ESD Protection on Each Pin D1...D4 R cs Filtering Capacitor Vcontrol ROCP L1 D1 1 2 3 4 CT 8 VCC 7 6 5...