Product Overview MC33364: Critical Conduction Mode SMPS Controller For complete documentation, see the data sheet Product Description The MC33364 series are variable frequency SMPS controllers that operate in the critical conduction mode. They are optimized for high density power supplies requiring minimum board area, reduced component count, and low power dissipation. Integration of the high voltage startup saves approximately 0.7 W of power compared to the value of the resistor bootstrapped circuits. Each MC33364 features an on-board reference, UVLO function, a watchdog timer to initiate output switching, a zero current detector to ensure critical conduction operation, a current sensing comparator, leading edge blanking, a CMOS driver and cycle-bycycle current limiting. The MC33364D1 has an internal 126 kHz frequency clamp. The MC33364D2 is available without an internal frequency clamp. The MC33364D has an internal 126 kHz frequency clamp which is pinned out, so that the designer can adjust the clamp frequency by connecting appropriate values of resistance. Features • • • • • • • Lossless Off-Line Startup Leading Edge Blanking for Noise Immunity Watchdog Timer to Initiate Switching Operating Temperature Range -25° to +125°C Shutdown Capability Over Temperature Protection Optional/Adjustable Frequency Clamp to Limit EMI Part Electrical Specifications Product Compliance Status Topolog y Control Mode fsw Typ (kHz) StandUVLO by Mode (V) Short Circuit Protecti on Latch Soft Start VCC Max Drive (V) Cap. (mA) Packag e Type MC33364D1G Pb-free Active Flyback Current Mode Up to 150 Yes Yes No No No 16 220 / 600 SOIC-8 Active Flyback Current Mode Up to 150 Yes Yes No No No 16 220 / 600 SOIC-8 Active Flyback Current Mode Up to 150 Yes Yes No No No 16 220 / 600 SOIC-8 Active Flyback Current Mode Up to 150 Yes Yes No No No 16 220 / 600 SOIC-8 Active Flyback Current Mode Up to 150 Yes Yes No No No 16 220 / 600 SOIC16 Active Flyback Current Mode Up to 150 Yes Yes No No No 16 220 / 600 SOIC16 Halide free MC33364D1R2G Pb-free Halide free MC33364D2G Pb-free Halide free MC33364D2R2G Pb-free Halide free MC33364DG Pb-free Halide free MC33364DR2G Pb-free Halide free For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016