Datasheet > LT4430

LT4430

更新时间： 2024-12-02 14:58:19

品牌	Logo	应用领域
亚德诺 - ADI		驱动光电驱动器
页数	文件大小	规格书
26页	937K
描述
副端光耦合器驱动器

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中文翻译

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数据手册

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LT4430 数据手册

LT4430

Secondary-Side

Opto-Coupler Driver

FeaTures

DescripTion

The LT^®4430 drives the opto-coupler that crosses the gal-

vanic barrier in an isolated power supply. The IC contains

a precision-trimmed reference, a high bandwidth error

amplifier, an inverting gain of 6 stage to drive the opto-

coupler and unique overshoot control circuitry.

600mV Reference (1.25% Over Temperature)

Wide Input Supply Range: 3V to 20V

Overshoot Control Function Prevents Output

Overshoot on Start-Up and Short-Circuit Recovery

High Bandwidth Error Ampliﬁer Permits Simple Loop

Frequency Compensation

Ground-Referenced Opto-Coupler Drive

The LT4430’s 600mV reference provides ±0.ꢀ75 initial

accuracy and ±±.ꢁ75 tolerance over temperature. A high

bandwidth9MHzerroramplifierpermitssimplefrequency

compensation and negligible phase shift at typical loop

crossover frequencies. The opto-coupler driver provides

±0mA of output current and is short-circuit protected.

A unique overshoot control function prevents output

overshoot on start-up and short-circuit recovery with a

single capacitor.

±0mA Opto-Coupler Drive with Current Limiting

Low Proﬁle (±mm) ThinSOT^TMPackage

applicaTions

48V Input Isolated DC/DC Converters

Isolated Telecommunication Power Systems

Distributed Power Step-Down Converters

The LT4430 is available in the low profile 6-lead TSOT-ꢁ3

package.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

Ofﬂine Isolated Power Supplies

Industrial Control Systems

Automotive and Heavy Equipment

Typical applicaTion

Simplified Isolated Synchronous Forward Converter

ISOLATION

BARRIER

Isolated Flyback Telecom Converter

Start-Up with Overshoot Control

(See Schematic on Back Page)

OUT

•

70V/DIV

LT1952

SYNC

LTC3900

•

OUT

7V/DIV

OVERSHOOT CONTROL

IMPLEMENTED

OPTO

COMP

LT4430

GND

4430 TA0±b

t = 7ms/DIV

4430 TA01

4430fd

For more information www.linear.com/LT4430

12 3 4 5 6 7...26

中文翻译

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与LT4430相关器件

型号	品牌	获取价格	描述	数据表
LT4430_1	Linear	获取价格	Secondary-Side Opto-Coupler Driver Ground-Referenced Opto-Coupler Drive
LT4430ES6	Linear	获取价格	Secondary-Side Optocoupler Driver
LT4430ES6#PBF	Linear	获取价格	LT4430 - Secondary-Side Optocoupler Driver; Package: SOT; Pins: 6; Temperature Range: -40&
LT4430ES6#TR	Linear	获取价格	LT4430 - Secondary-Side Optocoupler Driver; Package: SOT; Pins: 6; Temperature Range: -40&
LT4430ES6#TRM	Linear	获取价格	LT4430 - Secondary-Side Optocoupler Driver; Package: SOT; Pins: 6; Temperature Range: -40&
LT4430ES6#TRMPBF	Linear	获取价格	暂无描述
LT4430ES6#TRPBF	Linear	获取价格	LT4430 - Secondary-Side Optocoupler Driver; Package: SOT; Pins: 6; Temperature Range: -40&
LT4430HS6	Linear	获取价格	Secondary-Side Opto-Coupler Driver Ground-Referenced Opto-Coupler Drive
LT4430HS6#TRMPBF	Linear	获取价格	LT4430 - Secondary-Side Optocoupler Driver; Package: SOT; Pins: 6; Temperature Range: -40&
LT4430IS6	Linear	获取价格	IC SPECIALTY INTERFACE CIRCUIT, PDSO6, PLASTIC, MO-193, TSOT-23, 6 PIN, Interface IC:Other

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