GENERAL DESCRIPTION

The ACT334 belongs to the high performance patented ActivePSRTM Family of Universal-input AC/DC off-line controllers for battery charger and adapter applications. It is designed for flyback topology working in discontinuous conduction mode (DCM). The ACT334 meets all of the global energy efficiency regulations (CEC, European Blue Angel, and US Energy Star standards) while using very few external components.

FEATURES

• Ultra Low Standby Power < 30mW

• Patented Primary Side Regulation

    Technology

• Suitable Operation Frequency up to 85kHZ

• Proprietary Fast Startup Circuit

• Integrated Line and Primary Inductance

    Compensation

• Integrated Programmable Output Cord

    Resistance Compensation

• Line Under-Voltage, Output Over-Voltage,

    Output Short-Circuit and Over-Temperature

    Protection

• Complies with all Global Energy Efficiency

    and CEC Average Efficiency Standards

• Adjustable Power from 2W to 6W

• Minimum External Components

• Tiny SOT23-6 Package

APPLICATIONS

• Chargers for Cell Phones, PDAs, MP3,

    Portable Media Players, DSCs, and Other

    Portable Devices and Appliances

• RCC Adapter Replacements

• Linear Adapter Replacements

• Standby and Auxiliary Supplies