MC33260P

Product Summary

The MC33260P 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. The MC33260P is also optimized to offer extremely compact and cost effective PFC solutions. While it requires a minimum number of external components, the MC33260P 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.

Parametrics

MC33260P absolute maximum ratings: (1)Gate Drive Current Source IO: -500mA; (2)Gate Drive Current Source Sink IO: 500mA; (3)VCC Maximum Voltage (Vcc)max: 16 V; (4)Input Voltage Vin: -0.3 to +10 V; (5)Maximum Power Dissipation @ TA = 85℃ PD: 600 mW; (6)Thermal Resistance Junction-to-Air RθJA: 100 ℃/W; (7)Operating Junction Temperature TJ: 150 ℃; (8)Operating Ambient Temperature TA: -40 to +105 ℃.

Features

MC33260P features: (1)Standard Constant Output Voltage or "follower Boost" Mode; (2)Switch Mode Operation: Voltage Mode; (3)Latching PWM for Cycle-by-Cycle On-Time Control; (4)Constant On-Time Operation That Saves the Use of an Extra Multiplier; (5)Totem Pole Output Gate Drive; (6)Undervoltage Lockout with Hysteresis; (7)Low Startup and Operating Current; (8)Improved Regulation Block Dynamic Behavior; (9)Synchronization Capability; (10)Internally Trimmed Reference Current Source; (11)Pb-Free Packages are Available; (12)Overvoltage Protection: Output Overvoltage Detection; (13)Undervoltage Protection: Protection Against Open Loop; (14)Effective Zero Current Detection; (15)Accurate and Adjustable Maximum On-Time Limitation; (16)Overcurrent Protection; (17)ESD Protection on Each Pin.

Diagrams