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Maxim > Products > [Supervisors, Voltage Monitors, Sequencers]  [Automotive] 
MAX6803, MAX6804, MAX6805
4-Pin, Low-Power µP Reset Circuits with Manual Reset

4-Pin, Low-Power uP Reset Circuits with Manual Reset


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 556kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX6803/MAX6804/MAX6805 microprocessor (µP) supervisory circuits monitor the power supplies in 2.85V to 5.0V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external components and adjustments. They also feature a debounced manual reset input.

These devices perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold or whenever manual reset is asserted. Reset remains asserted for a preset timeout period after VCC has risen above the reset threshold or after manual reset is deasserted. The only difference among the three devices is their output. The MAX6804 (push/pull) and MAX6805 (open-drain) have an active-low RESET output, while the MAX6803 (push/pull) has an active-high RESET output. The MAX6803/MAX6804 are guaranteed to be in the correct state for VCC down to 0.7V. The MAX6805 is guaranteed to be in the correct state for VCC down to 1.0V.

The reset comparator in these ICs is designed to ignore fast transients on VCC. Reset thresholds are factory-trimmable between 2.63V and 4.80V, in approximately 100mV increments. These devices are available with a 1ms min, 20ms min, or 100ms min reset timeout period. Ideal for space-critical applications, the MAX6803/MAX6804/MAX6805 come packaged in a 4-pin SOT143. For a lower threshold voltage version, see the MAX6335/MAX6336/MAX6337.

Key Features   Applications/Uses
  • Ultra-Low 0.7V Operating Supply Voltage
  • Low 4.0µA Supply Current
  • Precision Monitoring of 2.85V to 5.0V Power-Supply Voltages
  • Reset Thresholds Available from 2.63V to 4.80V, in Approximately 100mV Increments
  • Debounced Manual Reset Input
  • Fully Specified over Temperature
  • Three Power-On Reset Timeout Periods Available (1ms min, 20ms min, 100ms min)
  • Low Cost
  • Three Available Output Structures: Push/Pull active-low RESET, Push/Pull RESET, Open-Drain active-low RESET
  • Guaranteed RESET/active-low RESET Valid to VCC = 0.7V (MAX6803/MAX6804)
  • Power-Supply Transient Immunity
  • No External Components Required
  • 4-Pin SOT143 Package
  • Pin Compatible with MAX811/MAX812 and MAX6314/MAX6315

 
  		• Automotive Electronics
  		• Computers: Desktop, Workstation, Server
  		• Controllers
  		• Critical µP and µC Power Monitoring
  		• Intelligent Instruments
  		• Portable Battery-Powered Equipment

    Key Specifications:  Supervisors (1 Monitored Voltage)
    Part Number Reset Thresh.
    (V)    		 Reset Out Reset Out tRESET Watchdog Feature Supervisor Features ICC
    (µA)    		 Price
    Active Low Active High min max See Notes
    MAX6803 
    2.5 to 3.3
    3.3 to 5.5
    		 - Push-Pull
    1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    		 No Watchdog Manual Reset 12 $0.98 @1k
    MAX6804  Push-Pull - $0.98 @1k
    MAX6805  Open Drain - $0.98 @1k
    See All Supervisors (1 Monitored Voltage) (274)

    Diagram
    MAX6803, MAX6804, MAX6805: Typical Operating Circuit
    Typical Operating 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.


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    MAX6803US40D1+T    
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    MAX6803US43D2+T    
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    MAX6803US43D3+T    
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    MAX6803US44D1+T    
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    MAX6803US48D3+T    
    		Active

    Land Pattern: Not Available

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    MAX6803US46D1+T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4+1*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6803US26D3+  
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4+1*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6803US29D3+  
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4+1*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6803US44D3+  
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4+1*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6803US26D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US26D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US26D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US27D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US27D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US27D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US28D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US28D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US28D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US29D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US29D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US29D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US30D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US30D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US30D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US31D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US31D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US31D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US32D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US32D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US32D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US33D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US33D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US33D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US34D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US34D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US34D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US35D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US35D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US35D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US36D1-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US36D2-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX6803US36D3-T    
    		Active SOT;4 pin;8 mm²
    Outline Drawing: 21-0052 (PDF)
    Land Pattern: 90-0183 (PDF)
    Use pkgcode/variation: U4-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
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    Document Ref.: 19-1946; Rev 2; 2006-06-02
    This page last modified: 2007-06-14


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