General Description
The AP3768 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies.
   
Features
• Primary Side Control for Eliminating Opto-coupler and
    Secondary CV/CC Control Circuitry
• 30mW No-load Input Power
• Programmable Output Cable Voltage Drop Compensation
• Proprietary CC Tightening Technique to Achieve
    Vertical CC Profile
• Compensation for External Component Temperature Variations
• Flyback Topology in DCM Operation
• Random Frequency Adjustment to Reduce System EMI
• Built-in Soft Start
• Over Voltage Protection
• Short Circuit Protection
• SOIC-8 Package
   
Applications
• Adapter/Chargers for Cell/Cordless Phones,
    DAs, MP3 and Other Portable Apparatus
• LED Driver
• Standby and Auxiliary Power Supplies