UCC28521, UCC28528 SLUS608D − JANUARY 2005 REVI.
Texas Instruments
UCC28521 - Advanced PFC/PWM Combination Controller
UCC28521, UCC28528 SLUS608D − JANUARY 2005 REVISED NOVEMBER 2005 ADVANCED PFC/PWM COMBINATION CONTROLLER WITH TRAILINGĆEDGE/TRAILINGĆEDGE MODULATION .