Features

PFC Section

– IEC 1000-3 compliant

– Additional operation mode as auxiliary power supply

– Fast, soft switching totem pole gate drive (1 A)

– Dual loop control (average current and voltage sensing)

– Leading edge triggered pulse width modulation

– Peak current limitation

– Topologies of PFC preconverter are boost or flyback

– Continuous/discontinuous mode possible

– 94% maximum duty cycle

PWM Section

– Improved current mode control

– Fast, soft switching totem pole gate drive (1 A)

– Soft-start management

– Trailing edge triggered pulse width modulation

– Topologies of PWM converter are feed forward or flyback

– 50% maximum duty cycle to prevent transformer saturation

– fPWM = fPFC