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Maxim > Products > [Hot-Swap and Power Switching] 
MAX5924, MAX5925, MAX5926
1V to 13.2V, n-Channel Hot-Swap Controllers Require No Sense Resistor


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 388kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX5924/MAX5925/MAX5926 1V to 13.2V hot-swap controllers allow the safe insertion and removal of circuit cards into live backplanes. These devices hot swap supplies ranging from 1V to 13.2V provided that the device supply voltage, VCC, is at or above 2.25V and the hot-swapped supply, VS, does not exceed VCC.

The MAX5924/MAX5925/MAX5926 hot-swap controllers limit the inrush current to the load and provide a circuit-breaker function for overcurrent protection. The devices operate with or without a sense resistor. When operating without a sense resistor, load-probing circuitry ensures a short circuit is not present during startup, then gradually turns on the external MOSFET. After the load probing is complete, on-chip comparators provide overcurrent protection by monitoring the voltage drop across the external MOSFET on-resistance. In the event of a fault condition, the load is disconnected.

The MAX5924/MAX5925/MAX5926 include many integrated features that reduce component count and design time, including configurable turn-on voltage, slew rate, and circuit-breaker threshold. An on-board charge pump provides the gate drive for a low-cost, external n-channel MOSFET.

The MAX5924/MAX5925/MAX5926 are available with open-drain PGOOD and/or PGOOD-bar outputs. The MAX5925/MAX5926 also feature a circuit breaker with temperature-compensated RDS(ON) sensing. The MAX5926 features a selectable 0ppm/°C or 3300ppm/°C temperature coefficient. The MAX5924 temperature coefficient is 0ppm/°C and the MAX5925 temperature coefficient is 3300ppm/°C. Autoretry and latched fault-management configurations are available (see the Selector Guide in the full data sheet).

An evaluation kit is available:  MAX5926EVKIT  

Key Features   Applications/Uses
  • Hot Swap 1V to 13.2V with VCC > 2.25V
  • Drive High-Side n-Channel MOSFET
  • Operation With or Without RSENSE
  • Temperature-Compensated RDS(ON) Sensing
  • Protected During Turn-On into Shorted Load
  • Adjustable Circuit-Breaker Threshold
  • Programmable Slew-Rate Control
  • Programmable Turn-On Voltage
  • Autoretry or Latched Fault Management
  • 10-Pin µMAX® or 16-Pin QSOP Packages

 
  		• Base Stations
  		• Network Routers and Switches
  		• Portable Device Bays
  		• RAID
  		• Remote-Access Servers
  		• Servers

    Key Specifications:  Hot Swap Controllers
    Part Number VIN
    (V)    		 VIN
    (V)    		 Low Volt. High Volt. Voltage Polarity Type Fault Condition Control Channels Features Package/Pins Price
    min max See Notes
    MAX5924A  1 13.2 Yes No Positive Positive, Low-Voltage Latched Off 1
    10mV Minimum Adjustable Circuit Breaker Threshold
    Dual-Speed Bi-Level Inrush and Short-Circuit Protection
    In-Rush Current and Short Circuit Protection
    May use MOSFET ON Resistance or External Rsense as Current Detect
    On/Off Control
    Output Short Circuit Detection Before Startup
    µMAX/10
    		 $1.13 @1k
    MAX5925A  Latched Off
    10mV Minimum Adjustable Circuit Breaker Threshold
    Dual-Speed Bi-Level Inrush and Short-Circuit Protection
    In-Rush Current and Short Circuit Protection
    May use MOSFET ON Resistance or External Rsense as Current Detect
    On/Off Control
    Output Short Circuit Detection Before Startup
    µMAX/10
    		 $1.13 @1k
    MAX5926  Latched Off or Periodic Retry
    10mV Minimum Adjustable Circuit Breaker Threshold
    Dual-Speed Bi-Level Inrush and Short-Circuit Protection
    In-Rush Current and Short Circuit Protection
    Latch or Auto-Restart Fault Management
    May use MOSFET ON Resistance or External Rsense as Current Detect
    QSOP-EP/16
    		 $1.44 @1k
    See All Hot Swap Controllers (47)

    Diagram
    MAX5924, MAX5925, MAX5926: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
  		• MAX5926EVKIT

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-36 of 36

    MAX5924 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5924AEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5924AEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5924BEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5924BEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5924CEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5924CEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5924DEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5924DEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5924AEUB+  
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5924AEUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5924BEUB+  
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5924BEUB+T    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5924DEUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5924CEUB+    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5924CEUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5924DEUB+  
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5925 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5925AEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5925AEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5925BEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5925BEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5925CEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5925CEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5925DEUB    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5925DEUB-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5925AEUB+  
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5925AEUB+T    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5925BEUB+  
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5925BEUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5925CEUB+  
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5925CEUB+T    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5925DEUB+  
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5925DEUB+T    
    		Active µMAX;10 pin;15.4 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10CN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5926 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5926EEE    
    		Active QSOP-EP;16 pin;30.9 mm²
    Outline Drawing: 21-0112 (PDF)
    Land Pattern: 90-0239 (PDF)
    Use pkgcode/variation: E16E-10*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5926EEE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX5926EEE+  
    		Active QSOP-EP;16 pin;30.9 mm²
    Outline Drawing: 21-0112 (PDF)
    Land Pattern: 90-0239 (PDF)
    Use pkgcode/variation: E16E+10*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5926EEE+T    
    		Active QSOP-EP;16 pin;30.9 mm²
    Outline Drawing: 21-0112 (PDF)
    Land Pattern: 90-0239 (PDF)
    Use pkgcode/variation: E16E+10*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Product Ad: Download
  		• Download: Design calculator for choosing component values

    Related Products
    MAX4271, MAX4272, MAX4273 3V to 12V, Current-Limiting, Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection

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    Document Ref.: 19-3443; Rev 2; 2006-12-13
    This page last modified: 2007-05-29


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