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MAX4271-MAX4273

更新时间： 2024-01-30 22:26:22
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
24页 406K
描述
3V to 12V Current-Limiting Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection

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MAX4271-MAX4273 数据手册

 浏览型号MAX4271-MAX4273的Datasheet PDF文件第2页浏览型号MAX4271-MAX4273的Datasheet PDF文件第3页浏览型号MAX4271-MAX4273的Datasheet PDF文件第4页浏览型号MAX4271-MAX4273的Datasheet PDF文件第5页浏览型号MAX4271-MAX4273的Datasheet PDF文件第6页浏览型号MAX4271-MAX4273的Datasheet PDF文件第7页 
19-1694; Rev 1a; 4/01  
3V to 12V Current-Limiting Hot Swap Controllers  
with Autoretry, DualSpeed/BiLevel Fault Protection  
General Description  
Features  
The MAX4271/MAX4272/MAX4273 comprise a com-  
plete family of integrated 3V to 12V hot-swap con-  
trollers. They allow the safe insertion and removal of  
circuit cards into live backplanes.  
o Provide Safe Hot Swap for +3V to +12V Power  
Supplies with Few External Components  
o Unique Current Regulation Architecture  
Minimizes N-FET Linear Mode Duration  
o Autoretry Feature (MAX4272/MAX4273)  
o DualSpeed/BiLevel Current Limit Protects Against  
Current Glitches and Short Circuits  
The discharged filter capacitors of the circuit card pro-  
vide a low impedance to the live backplane. High in-  
rush currents from the backplane to the circuit card can  
burn up connectors and components, or momentarily  
collapse the backplane power supply leading to a sys-  
tem reset. This family of hot-swap controllers prevents  
such problems by regulating the current to a preset  
limit when the board is plugged in, allowing the system  
to stabilize safely. After the startup cycle is completed,  
two on-chip comparators provide DualSpeed/BiLevel™  
protection against short circuits, load glitches, and  
overcurrent conditions. In the event of a fault condition,  
the load is disconnected. Fault recovery is handled by  
unlatching (MAX4271), autoretry (MAX4272), or pro-  
grammed (MAX4273) methods.  
o Power-On RESET (MAX4273)  
o 15V Absolute Maximum Rating Protects Against  
Inductive Kickbacks During Board Removal  
o Internal Charge Pump Generates Gate Drive for  
External N-MOSFET  
o Status Output Pin Indicates Fault/Safe Condition  
o Space-Saving 8-Pin SO, 16-Pin QSOP Packages  
________________________Applications  
The MAX4271 family includes many integrated features  
that reduce component count and design time. An on-  
board charge pump provides the gate drive for a low-  
cost, external N-FET. Integrated features like startup  
current regulation and current glitch protection eliminate  
external timing resistors and capacitors. Also featured  
are an open-drain status output to indicate a fault condi-  
tion, and an adjustable overcurrent response time.  
Base Stations  
Network Routers and  
Switches  
RAID  
ISDN  
Remote-Access Servers  
Ordering Information  
The MAX4271 (latched fault protection) and MAX4272  
(autoretry fault protection) come in 8-pin SO packages.  
The MAX4273 (full function) comes in the space-saving  
16-pin QSOP package and 16-pin SO package. All  
parts are specified across the extended temperature  
range, and have an absolute maximum rating of 15V to  
provide extra protection against inductive kickback dur-  
ing board removal.  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
8 SO  
MAX4271ESA  
MAX4272ESA  
MAX4273EEE  
MAX4273ESE  
8 SO  
16 QSOP  
16 SO  
DualSpeed/BiLevel is a trademark of Maxim Integrated  
Products.  
Pin Configurations appear at end of data sheet.  
Typical Operating Circuit  
BACKPLANE  
REMOVABLE CARD  
2.7V TO 13.2V  
M1  
R
SENSE  
N
V
CC  
V
OUT  
C
BOARD  
IN  
SENSE  
GATE  
STAT  
STAT  
ON  
GND  
CSPD  
CTIM  
MAX4271  
MAX4272  
ON  
GND  
C
TIM  
________________________________________________________________ Maxim Integrated Products  
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  
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MAX4272 ADI

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 		3V至12V、限流型、热插拔控制器，带有自动重试以及DualSpeed/BiLevel故障
MAX4272ESA MAXIM

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 		3V to 12V Current-Limiting Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Pr
MAX4272ESA+ MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, PDSO8, 0.150 INCH, MS-012AA, SOIC-8
MAX4273 MAXIM

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 		3V to 12V.Current-Limiting.Hot Swap Controllers with Autoretry.DualSpeed/BiLevel™. Fau
MAX4273 ADI

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 		3V至12V、限流型、热插拔控制器，带有自动重试以及DualSpeed/BiLevel故障
MAX4273EEE MAXIM

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 		3V to 12V Current-Limiting Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Pr
MAX4273EEE+T MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PTICH,
MAX4273ESE MAXIM

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 		3V to 12V Current-Limiting Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Pr
MAX4273ESE+T MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, PDSO16, 0.150 INCH, MS-012AC, SOIC-16

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