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UC19431

更新时间： 2024-09-13 22:49:31

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
7页	140K
描述
Precision Adjustable Shunt Regulator

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UC19431 数据手册

UC19431

UC29431

UC39431

UC39431B

Precision Adjustable Shunt Regulator

FEATURES

DESCRIPTION

• Multiple On-Chip Programmable

Reference Voltages

The UC39431 is an adjustable shunt voltage regulator with 100mA sink ca-

pability. The architecture, comprised of an error amplifier and

transconductance amplifier, gives the user separate control of the small

signal error voltage frequency response along with a fixed linear

transconductance. A minimum 3MHz gain bandwidth product for both the

error and transconductance amplifiers assures fast response. In addition to

external programming, the IC has three internal resistors that can be con-

nected in six different configurations to provide regulated voltages of 2.82V,

3.12V, 5.1V, 7.8V, 10.42V, and 12.24V. A sister device (UC39432) provides

access to the non-inverting error ampilifer input and reference, while elimi-

nating the three internal resistors.

• 0.4% Initial Accuracy

• 0.7% Overall Reference Tolerance

• 2.2V to 36.0V Operating Supply

Voltage and User Programmable

Reference

• 36.0V Operating Supply Voltage

• Reference Accuracy Maintained For

Entire Range of Supply Voltage

• Superior Accuracy and Easier

Compensation for Optoisolator

Application

• Improved Architecture Provides a

Known Linear Transconductance with

a +5% Typical Tolerance

BLOCK DIAGRAM

UDG-95087

04/99

12 3 4 5 6 7

中文翻译

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