Datasheet > LT4356MPS-3

LT4356MPS-3

更新时间： 2024-11-12 02:50:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	631K
描述
Surge Stopper with Fault Latchoff

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中文翻译

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LT4356MPS-3 数据手册

LT4356-3

Surge Stopper with

Fault Latchoff

FEATURES

DESCRIPTION

The LT^®4356-3 surge stopper protects loads from high

voltage transients. It regulates the output during an

overvoltage event, such as load dump in automobiles, by

controllingthegateofanexternalN-channelMOSFET.The

output is limited to a safe value thereby allowing the loads

to continue functioning. The LT4356-3 also monitors the

Stops High Voltage Surges

Adjustable Output Clamp Voltage

Overcurrent Protection

Wide Operation Range: 4V to 80V

Reverse Input Protection to –60V

Low 7µA Shutdown Current

Adjustable Latchoff Fault Timer

voltage drop between the V and SNS pins to protect

Controls N-channel MOSFET

against overcurrent faults. An internal amplifier limits

the current sense voltage to 50mV. In either fault condi-

tion, a timer is started inversely proportional to MOSFET

stress. If the timer expires, the FLT pin pulls low to warn

of an impending power down. If the condition persists,

the MOSFET is turned off, until the SHDN pin pulls low

momentarily.

Shutdown Pin Withstands –60V to 100V

Fault Output Indication

Auxiliary Ampliﬁer for Level Detection Comparator or

Linear Regulator Controller

Available in 12-Pin 4mm × 3mm DFN,

10-Pin MSOP, and 16-Pin SO Packages

The auxiliary amplifier may be used as a voltage detection

comparator or as a linear regulator controller driving an

external PNP pass transistor.

APPLICATIONS

Automotive/Avionic Surge Protection

Hot Swap/Live Insertion

Back-to-back FETs can be used in lieu of a Schottky diode

for reverse input protection, reducing voltage drop and

power loss. The SHDN input turns off the part, including

the auxiliary amplifier, and reduces the quiescent current

to less than 7µA.

High Side Switch for Battery Powered Systems

All registered trademarks and trademarks are the property of their respective owners.

TYPICAL APPLICATION

4A, 12V Overvoltage Output Regulator

Overvoltage Protector Regulates Output at

27V During Transient

10mΩ

IRLR2908

OUT

12V

ꢙ

ꢇꢒꢎD

ꢛ ꢌꢜꢔꢝꢞ

ꢛ ꢋꢁꢁꢂꢎ

ꢔꢁꢆ ꢅꢐꢕꢓꢈ ꢖꢓRꢗꢘ

ꢈꢚR

ꢅ

10Ω

102k

ꢆ

ꢅꢐ

SNS GATE OUT

ꢑꢁꢆꢄDꢅꢆ

383k

SHDN

ꢀꢑꢆ

4.99k

ꢑꢟꢆ ꢎDꢠꢓꢖꢈꢎꢡꢇꢘ ꢙꢇꢎꢚꢕ

ꢀꢁꢁꢂꢃꢄDꢅꢆ

DC-DC

LT4356DE-3

ꢆ

ꢒꢓꢈ

CONVERTER

ꢑꢁꢆꢄDꢅꢆ

100k

SHDN

GND

ꢁNDꢂꢃꢄꢅLTꢀꢆꢂ

FLT

FꢀꢁLT

ꢇꢈꢉꢊꢋꢌꢍꢊꢈꢎꢁꢀꢏ

OUT

GND

TMR

43563 TA01

0.1µF

Rev D

For more information www.analog.com

12 3 4 5 6 7...24

中文翻译

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与LT4356MPS-3相关器件

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LT4363	Linear	获取价格	High Voltage Surge
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LT4363-1	Linear	获取价格	Ideal Diode Controller with Reverse Input Protection
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LT4363MPS-1#PBF	Linear	获取价格	LT4363 - High Voltage Surge Stopper with Current Limit; Package: SO; Pins: 16; Temperature
LT4411	ETC	获取价格	UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE
LT4412	ETC	获取价格	UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE
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LT4414	ETC	获取价格	UNDERSTANDING THE SUBJECT IS CUSTOMER SERVICE
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