MAX4271ESA+ by Analog Devices

3V to 12V, Current-Limiting, Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection

Status: Active
Series: MAX4271
RoHS: Unknown
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The MAX4271/MAX4272/MAX4273 comprise a complete family of integrated 3V to 12V hot-swap controllers. They allow the safe insertion and removal of circuit cards into live backplanes. The discharged filter capacitors of the circuit card provide 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 system 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 programmed (MAX4273) methods. 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 condition, and an adjustable overcurrent response time. 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 during board removal.

Prices starting from US$2.79


Distributor Starting From Stock
Logo for element14 element14 US$4.38
940
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Logo for CoreStaff CoreStaff US$2.79
33
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Logo for Newark Electronics Newark Electronics US$4.93
13
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Features

Provide Safe Hot Swap for +3V to +12V Power Supplies with Few External Components
Unique Current Regulation Architecture Minimizes n-FET Linear Mode Duration
Autoretry Feature (MAX4272/MAX4273)
DualSpeed/BiLevel Current Limit Protects Against Current Glitches and Short Circuits
Power-On RESET (MAX4273)
15V Absolute Maximum Rating Protects Against Inductive Kickbacks During Board Removal
Internal Charge Pump Generates Gate Drive for External n-MOSFET
Status Output Pin Indicates Fault/Safe Condition
Space-Saving 8-Pin SO, 16-Pin QSOP Packages

Specifications

VIN (V) (min) 2.7
VIN (V) (max) 13.2
# Channels 1
Circuit Breaker/ Current Limit Current Limit
Circuit Breaker/Current Limit Threshold (mV) 50
Fault Condition Control Latched Off
Positive/Negative Rail Positive
Features DualSpeed/BiLevel Current Limit
Package/Pins SOIC (N)/8
BudgetaryPrice (See Notes) 3.22


MAX4271ESA+ Semiconductors - ICs by Analog Devices

HOT SWAP CONTROLLER 2.7V-13.2V NSOIC-8

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Controller Applications Base Stations Network Routers & Switches RAID Remote Access Servers
Input Voltage -
Supply Voltage Min 2.7V
Supply Voltage Max 13.2V
Controller IC Case Style NSOIC
No. of Pins 8Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

HOT SWAP CONTROLLER, 2.7V-13.2V, NSOIC-8 | element14
Hot Swap Controller, 2.7V-13.2V, Nsoic-8 | Newark Electronics

Frequently Asked Questions

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Is the MAX4271ESA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including element14, Farnell, CoreStaff and Newark Electronics have stock available or on a lead time for MAX4271ESA+ .

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