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Maxim > Products > [Analog Switches and Multiplexers] 
MAX14527, MAX14528
Adjustable Overvoltage Protector with High Accuracy

Superior Input Voltage Protection with Maximum Flexibility


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 116kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX14527/MAX14528 overvoltage protection devices feature a low 100mΩ (typ) RON internal FET and protect low-voltage systems against voltage faults up to +28V. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected components.

The overvoltage protection threshold can be adjusted with optional external resistors to any voltage between 4V and 8V. With the OVLO input set below the external OVLO select voltage, the MAX14527/MAX14528 automatically choose the internal ±2.5% accurate trip thresholds. The internal overvoltage thresholds (OVLO) are preset to 5.75V typical (MAX14527) or 6.76V typical (MAX14528). The MAX14527/MAX14528 are also protected against overcurrent events with an internal thermal shutdown.

The MAX14527/MAX14528 are offered in a small, 8-pin TDFN-EP package and operate over the -40°C to +85°C extended temperature range.

Key Features   Applications/Uses
  • Input Voltage Protection Up to +28V
  • Preset Internal ±2.5% Accurate OVLO Thresholds
    • 5.75V (MAX14527)
    • 6.76V (MAX14528)
  • Adjustable Overvoltage Protection Trip Level
  • Integrated 100mΩ (typ) n-Channel MOSFET Switch
  • Soft-Start to Minimize In-Rush Current
  • Automatic Overvoltage Protection Trip-Level Selection
  • Internal 15ms Startup Delay
  • Thermal Shutdown Protection
  • 8-Pin TDFN (2mm x 2mm) Package
  • -40°C to +85°C Operating Temperature Range

 
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    Key Specifications:  Overvoltage Protection Controllers
    Part Number Channels VIN
    (V)    		 VIN
    (V)    		 Over Voltage Trip Level
    (V)    		 VGATE
    (V)    		 tGATE (On)
    (ms)    		 tGATE (Off)
    (µs)    		 Features Package/Pins Price
    min max See Notes
    MAX14527  1 2.2 28 5.75 5.75 0.7 1.3 Internal Charge Pump
    TDFN-EP/8
    		 $0.90 @1k
    MAX14528  6.76
    5.75
    6.76
    TDFN-EP/8
    		 $0.90 @1k
    See All Overvoltage Protection Controllers (47)

    Diagram
    MAX14527, MAX14528: Typical Application Circuit
    Typical Application Circuit

    Design Guides
  		• Interface (PDF)
  		• Microprocessor Supervisory (PDF)

    Reliability Reports
  		• Reliability Report: MAX14527.pdf MAX14528.pdf
  		• Show FIT data 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: 1-4 of 4

    MAX14527 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX14527ETA+  
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0065 (PDF)
    Use pkgcode/variation: T822+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX14527ETA+T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0065 (PDF)
    Use pkgcode/variation: T822+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX14528 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX14528ETA+  
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0065 (PDF)
    Use pkgcode/variation: T822+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX14528ETA+T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0065 (PDF)
    Use pkgcode/variation: T822+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• New Product Press Release 2009-02-09 

    Related Products
    MAX4843, MAX4844, MAX4845, MAX4846 Overvoltage Protection Controllers with Low Standby Current

    More Like This: View Product Families for Similar Products

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    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
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    Document Ref.: 19-4357; Rev 0; 2008-11-18
    This page last modified: 2009-01-26


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