Offline Controllers | FAN604P

The FAN604P incorporates Quasi-Resonant (QR) control with proprietary Valley Switching with a limited frequency variation. QR switching provides high efficiency by reducing switching losses while Valley Switching with a limited frequency variation bounds the frequency band to overcome the inherent limitation of QR switching. FAN604P burst mode operation with extremely low operating current (300μA) and significantly reduces standby power consumption to meet the most stringent efficiency regulations such as Energy Star’s 5-Star Level and CoC Tier II specifications. FAN604P includes several user configurable features aimed at optimizing efficiency, EMI and protections. FAN604P has a wide blanking frequency range that improves light load efficiency. It incorporates user configurable power limit reference (PLR), which allows controlling the maximum output power from primary-ide, thereby optimizing transformer design to improve the overall efficiency. It also includes several rich programmable protection features such as over-voltage protection (OVP), under-voltage protection (UVP) and externally triggered shutdown protection (SD).