Datasheet > TL432A3-A-TB-G

TL432A3-A-TB-G

更新时间： 2024-11-27 00:49:07

品牌	Logo	应用领域
全宇昕 - CYSTEKEC		/
页数	文件大小	规格书
15页	355K
描述
Adjustable shunt regulator

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TL432A3-A-TB-G 数据手册

Spec. No. : C504A3

Issued Date : 2003.03.21

Revised Date : 2013.10.23

Page No. : 1/15

CYStech Electronics Corp.

Adjustable shunt regulator

TL432A3/N3/M3/K3

Description

Features

◆Low voltage operation(down to 1.24V)

◆Fast turn on response

◆Low dynamic output impedance 0.2Ω typ.

◆Trimmed bandgap design : ±0.5%

◆Sink current capability : 100mA

◆Available in TO-92, SOT-23, SOT-89, and

TO-92L packages

TheTL432 is a three terminal adjustable shunt

regulator with thermal stability guaranteed over

temperature. The output voltage can be adjusted

to any value from 1.24V(VREF) to 18V with two

external resistors. The TL432 has a typical dynamic

output impedance of 0.2Ω. Active output circuitry

provides a very sharp turn on characteristic, making

the TL432 an excellent replacement for zener diodes. Applications

The TL432 shunt regulator is available with two

voltage tolerances(0.5%, and 1% ), and four package

options(TO-92, SOT-23, SOT-89 and TO-92L).

This allows the designer the opportunity to select the

optimum combination of cost and performance for

their application.

◆Linear Regulators

◆Adjustable Supplies

◆Switching Power Supplies

◆Battery Operated Computers

◆Instrumentation

◆Computer Disk Drives

Typical Application Circuit(Note 1,2)

Notes:

1) Set VOUT according to the following equation:

V^OUT=VREF(1+R1/R2)+IREFR1

2) Choose the value for R as follows:

˙The maximum limit for R should be such that the

cathode current, Iz, is greater than the minimum

operating current(80μA) at VI^N(MIN).

˙The minimum limit for R should be as such that Iz

does not exceed 100mA under all load conditions,

and the instantaneous turn-on value for Iz does not

exceed 150mA. Both of the following conditions

must be met:

TL432

Rmin≥V^IN(max)/150mA(to limit instantaneous

turn-on Iz)

Rmin≥ V^IN(max)-VOUT

(to limit Iz under

I^OUT(min)+100mA normal operating

conditions)

TL432A3/N3/M3/K3

CYStek Product Specification

12 3 4 5 6 7...15

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