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2022-09-24 23:33:15
UCC2817D - Current Mode Switching Power Supply Controller
Features Controlled boost Near unity power factor Pre-regulator Limits line distortion Web line operation Over-voltage protection Accurate power limit Average current mode control Improves noise immunity Improved feed-forward line regulation
150 mA (typ) startup current Low power BiCMOS operation
12 V to 17 V operating voltage
The UCCx817/18 family provides all necessary functions for active power factor correction preregulators. The controller achieves a power factor around the shaping of the AC input current waveform corresponding to the AC input voltage. Average current mode control maintains stable, low distortion sinusoidal line current.