The PN8145 consists  of an integrated Pulse  Width Modulator (PWM) controller  and power MOSFET, specifically  designed for a high  performance  off-line  converter   with  minimal  external  components.  PN8145  offers   complete  protection  coverage  with automatic self-recovery  feature including Cycle-by-Cycle current  limiting (adjustable OCP),  and overload protection (OLP),  over temperature protection(OTP), Over oltage Protection (OVP), CS  Short-Circuit Protection and soft-start. Hi-mode, Eco-mode, Burst mode  operation  and  device very  low  consumption  helps  to  meet  the  standby energy  saving  regulations  and  achieve  higher efficiency. Excellent  EMI performance  is achieved  with frequency  modulation. The  device consists  of the  high voltage  start-up circuit. The device provides an advanced platform well suited for the application of .The Six Levels of Energy Efficiency Standards,The Eur2.0, and The Energy Star.