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Maxim > Products > [Supervisors, Voltage Monitors, Sequencers]  [Automotive] 
MAX16055
Ultra-Small, Hex Voltage, Microprocessor Supervisor

Increases Reliability While Reducing Solution Size


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 160kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX16055 precision hex voltage microprocessor (µP) supervisory circuit monitors up to six system-supply voltages and asserts a single reset when any one supply voltage drops below its preset threshold. The device significantly reduces system size and component count while improving reliability compared to multiple ICs or discrete components.

A variety of factory-trimmed threshold voltages are available to accommodate different supply voltages and tolerance with minimal external components. The MAX16055 includes internally fixed threshold options for monitoring 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V, and 0.9V supplies with -5% or -10% tolerance. The MAX16055 is also available with one to five adjustable threshold inputs to monitor voltages down to 0.5V.

A single active-low, open-drain output asserts when any monitored input falls below its associated threshold. The reset output features a weak internal pullup (typically 70µA) to supply input IN1. The reset output remains low for the reset timeout period (140ms, min) after all voltages rise above the selected thresholds. The reset output remains valid as long as either IN1 or IN2 input voltage is above 1V. The MAX16055 is available in a small 10-pin µMAX® (3mm x 3mm) package. The MAX16055 operates over the -40°C to +125°C automotive temperature range.

Key Features   Applications/Uses
  • Precision Factory-Set Reset Threshold Options 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V, and 0.9V
  • Adjustable Voltage Threshold Monitors Down to 0.5V with 1.5% Accuracy
  • Open-Drain Active-Low RESET Output with 70µA Internal Pullup
  • Fixed 140ms (min) Reset Timeout Period
  • Manual Reset Input
  • Reset Valid for IN1 ≥ 1V or IN2 = 1V
  • Tolerance Select (5%/10%) Input
  • Immune to Short Supply Transients

 
  		• Computers
  		• Data Storage Equipment
  		• Desktop and Notebook Computers
  		• High-End Printers
  		• Industrial Equipment
  		• Networking Equipment
  		• Servers/Workstations
  		• Set-Top Boxes
  		• Telecommunications

    Key Specifications:  Supervisors (4 Monitored Voltages)
    Part Number Interface Reset Thresh.
    (V)    		 Reset Out tRESET Watchdog Feature Supervisor Features Reset Thresh. Accur.
    (%)    		 ICC
    (µA)    		 Price
    Active Low min @ +25°C max See Notes
    MAX16055 
    Factory Fixed
    R/C Adjustable
    0 to 1.2
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    Open Drain
    Open Drain with Internal Pull-Up
    		 85ms to 300ms No Watchdog Manual Reset 1.5 55 $2.33 @1k
    See All Supervisors (4 Monitored Voltages) (26)

    Key Specifications:  Supervisors (> 5 Monitored Voltages)
    Part Number Monitored Voltages Interface Reset Thresh.
    (V)    		 Reset Out tRESET Watchdog Feature Supervisor Features ICC
    (µA)    		 Price
    Active Low min max See Notes
    MAX16055 
    5
    6
    Factory Fixed
    R/C Adjustable
    0 to 1.2
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    Open Drain
    Open Drain with Internal Pull-Up
    		 85ms to 300ms No Watchdog Manual Reset 55 $2.33 @1k
    See All Supervisors (> 5 Monitored Voltages) (12)

    Diagram
    MAX16055: Application Operating Circuit
    Typical Application Circuit

    Design Guides
  		• Microprocessor Supervisory (PDF)

    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: 1-20 of 20

    MAX16055 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX16055GAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055IAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055CAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055BAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055IAUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055GAUB+    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055DAUB+    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055EAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055JAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055AAUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055FAUB+    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055JAUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055BAUB+    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055DAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055EAUB+  
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055FAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055HAUB+    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055HAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX16055CAUB+    
    		Active µMAX;10 pin;15 mm²
    Outline Drawing: 21-0061 (PDF)
    Land Pattern: 90-0330 (PDF)
    Use pkgcode/variation: U10+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX16055AAUB+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet

    More Information
  		• Topmark Coding: MAX16055
  		• New Product Press Release 2009-07-29 

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    Document Ref.: 19-4411; Rev 0; 2009-01-15
    This page last modified: 2009-01-16


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