Datasheet > LT4200

LT4200

更新时间： 2024-11-12 14:57:51

品牌	Logo	应用领域
亚德诺 - ADI		电子
页数	文件大小	规格书
18页	796K
描述
具有保证SOA的50A热插拔电子保险丝(E-Fuse)

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中文翻译

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LT4200 数据手册

LT4200

50A Hot Swap E-Fuse with

Guaranteed SOA

FEATURES

DESCRIPTION

The LT^®4200 is an integrated solution for hot swap

applications that allows a board to be safely inserted and

removed from a live backplane. The part integrates a hot

swap controller, power MOSFET and current sense resistor

into a single package for small form-factor applications.

The MOSFET safe operating area is production tested and

guaranteed for the stresses in hot swap applications.

Allows Safe Board Insertion into Live Backplane

Wide Operating Voltage Range: 2.9V to 15V

Guaranteed Safe Operating Area: 7.5W√s

1.2mΩ MOSFET with Current Sense Element

±±4 Current Monitor Output

Adjustable Current Limit Threshold

Temperature Monitor Output

Overtemperature Protection

The LT4200 allows 50A of continuous operation at up to

85°C ambient temperature. It provides separate inrush

current control and a 12% accurate 57A current limit with

output dependent foldback. The current limit threshold

can be adjusted dynamically using the ISET pin. Additional

features include a current monitor output for ground

referenced current sensing and a MOSFET temperature

monitor output. Thermal limit, overvoltage, undervoltage

and power good monitoring are also provided.

Adjustable Current Limit Timer Before Fault

Power Good and Fault Outputs

Adjustable Inrush Current Control

2.5% Accurate ꢀndervoltage and

Overvoltage Protection

Available in a 36-Pin (5mm × 8mm) QFN Package

APPLICATIONS

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

High Availability Servers

Solid State Drives

TYPICAL APPLICATION

12V, 50A Card Resident Application with Auto-Retry

Power-Up Waveform

12V

50A

OUT

12V

CONTACT

BOUNCE

150k

20k

SENSE

4700µF

10V/DIV

107k

2A/DIV

10k

FLT#

LT4200

5.23k

10k

OUT

10V/DIV

TIMER

INTV

IMON

ADC

20k

4200 TA01b

1µF

20ms/DIV

GND

4200 TA01a

PINS NOT USED IN THIS CIRCUIT:

GATE, ISET

*TVS: DIODES INC. SMCJ15A

Rev. 0

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