NCP1618FDR2G

NCP1618 is an innovative high-voltage multimode power factor controller. The circuit naturally transitions from one operation mode to another depending the switching period duration so that the efficiency is optimized over the line/load range. In very−light−load conditions, the circuit can enter the soft−SKIP mode for minimized losses. Its protection features are soft− and fast−overvoltage protection, line−sag and brown−out detection, 2−level over current detection, bulk under−voltage detection, OVP2: redundant over−voltage protection using the ZCD pin, thermal shutdown. Typical applications are PC power supplies, all off−line appliances requiring power factor correction.