Low Standby-Power Off-line PWM converters

                                                                    Product：PN8149

一、General Description

The PN8149 consists of an integrated Pulse Width Modulator (PWM) controller and power MOSFET, specifically designed for ahigh performance off-line converter with minimal external components. PN8149 offers complete protection coverage withautomatic self-recovery feature including Cycle-by-Cycle current limiting (adjustable OCP), and overload protection (OLP), overtemperature protection(OTP), Over oltage Protection (OVP), CS Short-Circuit Protection and soft-start. Hi-mode, Eco-mode, Burstmode operation and device very low consumption helps to meet the standby energy saving regulations and achieve higherefficiency. Excellent EMI performance is achieved with frequency modulation. The device consists of the high voltage start-upcircuit. 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.

二、 Features 

   Internal 650V avalanche-rugged power MOSFET
   Hi-mode（ 60kHz PWM）
   Eco-mode（ PFM）
   Burst-mode （ 25kHz Burst-Mode）
   Frequency modulation for low EMI
   No-load consumption power <75 mW @230VAC
   Built-in Soft Start
   Internal HV Start-up Circuit
   Internal Slope and line input Compensation
   Open frame output power >24W @230VAC
   Excellent Protection Coverage:
          Over Temperature Protection（ OTP）
          Over Load Protection（ OLP）
          Adjustable Over Current Protection（ OCP）
          Over oltage Protection (OVP)
          CS Short-Circuit Protection

三、Applications

     Switch AC/DC Adaptor and Battery Charger

     Auxiliary Power for White Goods, PC,Audio

     LCD /PDP TV Power

四、Package/Order Informatio

五、Typical Application

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