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DESCRIPTION

The AP8010 is a high performance AC-DC off‐line

controller for low power battery charger and adapter

applications with Universal‐input. It uses Pulse

Frequency and Width Modulation (PFWM) method

to build discontinuous conduction mode (DCM)

flyback power supplies.

The AP8010 utilizes primary‐side sensing and

regulation technology to provide accurate constant

voltage, constant current (CV/CC) regulation without

requiring an opto‐coupler and secondary control

circuitry. It also eliminates the need of external loop

compensation circuitry while maintaining stability.

The AP8010 achieves excellent regulation and high

average efficiency, yet meets the requirement for

standby power less than 150mW.

The AP8010 ensures safe operation with complete

protection against all fault conditions. Built‐in

protection circuitry is provided for output short

circuit, output over‐voltage, line under‐voltage, VDD

over voltage, feedback open and short, and over

temperature conditions.

Integrated line and primary inductance

compensation circuitry, the AP8010 provides

accurate constant current operation despite wide

variations in line voltage and primary inductance. It

has the built‐in cable voltage drop compensation

function.

The AP8010 is available in SOT-25 package.

FEATURES

? Primary Side Regulation Technology for

Eliminating Opto‐coupler and Secondary CV/CC

Control Circuitry

? Best‐in‐Class Constant Voltage, Constant

Current Accuracy

? Built‐in Soft‐Start Circuit

? Integrated Line and Primary Inductance

Compensation

? Integrated Output Cable Voltage Drop

Compensation

? Line Under‐Voltage, Output Over‐Voltage,

Output Short‐Circuit and Over‐Temperature

Protection

? Minimum External Components

? Low EMI

? Available in SOT-25 Package

APPLICATION

? 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