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AP4313

CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER

BCD Semiconductor 

Preliminary Datasheet

CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER

AP4313

General Description

Features

The AP4313 is a highly integrated solution for a con-

stant voltage/constant current mode SMPS application.

The AP4313 contains one 1.21V voltage reference

with ±1% accuracy, one current sensing circuit and two

operational amplifiers. Combining the voltage refer-

ence with one operational amplifier makes AP4313 an

ideal voltage controller for use in adapters and battery

chargers. The other low voltage reference combined

with the other operational amplifier makes it an ideal

current limiter for output low side current sensing.

· Constant Voltage and Constant Current Control

· Precision Internal Voltage Reference

· Few External Components

· Easy Compensation

Applications

· Adapters

· Battery Chargers

The AP4313 is available in SOT-23-6 package.

Nov. 2005 Rev. 1. 0

SOT-23-6

Figure 1. Package Type of AP4313

BCD Semiconductor Manufacturing Limited

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