The Infineon fixed frequency PWM controller is the 5 th generation of fixed frequency PWM controller optimized for off-line switch mode power supply in cascode configuration. The cascode configuration helps achieve fast start-up. The frequency reduction with soft gate driving and frequency jitter operation offers lower EMI and better efficiency between light load and 50% load. The selectable entry and exit standby power ABM enables flexibility and ultra-low power consumption at standby mode with small and controllable output voltage ripple. The product has a wide operating range of IC power supply and lower power consumption. The numerous protection functions with adjustable line over voltage protection support the power supply system in failure situations.

Enhanced Active Burst Mode with selectable entry and exit standby power
Digital frequency reduction for better overall system efficiency
Fast start-up achieved with cascode configuration
DCM and CCM operation with slope compensation
Frequency jitter and soft gate driving for low EMI
Built-in digital soft start
Integrated error amplifier to support direct feedback in non-isolated fly back