AP4305KTR-E1 查看數據表（PDF） - BCD Semiconductor

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AP4305KTR-E1

CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER

BCD Semiconductor 

Data Sheet

CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER AP4305

General Description

Features

The AP4305 is a highly integrated solution for a con-

stant voltage/constant current mode SMPS application.

The AP4305 contains one 1.21V voltage reference

with ± 0.5% accuracy, one current sensing circuit and

two operational amplifiers. Combining the voltage ref-

erence with one operational amplifier makes AP4305

an ideal voltage controller for use in adapters and bat-

tery chargers. The other low voltage reference com-

bined with the other operational amplifier makes it an

ideal current limiter for output low side current sens-

ing.

· Constant Voltage and Constant Current Control

· Precision Internal Voltage Reference

· Few External Components

· Easy Compensation

· Low Supply Current: 0.5mA

· Operating Temperature Range: -40 to 105oC

Applications

· Adapters

· Battery Chargers

The AP4305 is available in SOT-23-6 package.

Apr. 2007 Rev. 1. 5

SOT-23-6

Figure 1. Package Type of AP4305

BCD Semiconductor Manufacturing Limited

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