General Description

The AP3766 is a high performance AC/DC power supply controller for battery charger and adapter applica tions. The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies.

Features

· Primary Side Control for Rectangular Constant Current and Constant Voltage Output

· Sub-microampere Start-up Current

· 30mW No-load Input Power Feasible

· Tight CC Regulation Performance

· Eliminates Opto-coupler and Secondary CV/CC Control Circuitry

· Eliminates Control Loop Compensation Circuitry

· Flyback Topology in DCM Operation

· Random Frequency Modulation to Reduce System EMI

· Built-in Soft Start

· Open Feedback Protection

· Short Circuit Protection

· SOT-23-6 Package

Applications

· Adapters/Chargers for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus

· LED Drivers

· Standby and Auxiliary Power Supplies