1. Products
  2. Power Monitor, Control, and Protection
  3. Supervisory Circuits
  4. Single-Supply Monitors
  5. MAX809

Data Sheet Rev. 11
PDF
CN | JP Rev. 7
SPICE Model
2 View All

Overview

Features and Benefits

  • Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages
  • Fully Specified Over Temperature
  • Available in Three Output Configurations
    • Open-Drain Active-Low RESET Output (MAX803)
    • Push-Pull Active-Low RESET Output (MAX809)
    • Push-Pull RESET Output (MAX810)
  • 140ms min Power-On Reset Pulse Width
  • 12µA Supply Current
  • Guaranteed Reset Valid to VCC= +1V
  • Power Supply Transient Immunity
  • No External Components
  • 3-Pin SC70 and SOT23 Packages
  • AEC-Q100 Qualified. Refer to Ordering Information for Specific /V Versions

Product Details

The MAX803/MAX809/MAX810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits.

These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.

The MAX803 has an open-drain output stage, while the MAX809/MAX810 have push-pull outputs. The MAX803's open-drain active-low RESET output requires a pullup resistor that can be connected to a voltage higher than VCC. The MAX803/MAX809 have an active-low RESET output, while the MAX810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V.

Low supply current makes the MAX803/MAX809/MAX810 ideal for use in portable equipment. The MAX803 is available in a 3-pin SC70 package, and the MAX809/MAX810 are available in 3-pin SC70 or SOT23 packages.

Applications

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

Product Categories

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Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Documentation & Resources

  • View All (14)
  • Data Sheet (1)
  • Reliability Data (6)
  • Design Note (2)
  • Technical Article (5)
    • Document Type

    Tools & Simulations

    IBIS Model

    SPICE Model

    Product Recommendations

    MAX809 Companion Parts

    Recommended Related Parts

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    MAX809JEUR+ Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809JEUR+T Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809LEUR+ Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809LEUR+T Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809LEXR+ Material Declaration Reliability Data Single Chip Package
    MAX809LEXR+T Material Declaration Reliability Data Single Chip Package
    MAX809LEXR+T10 Material Declaration Reliability Data Single Chip Package
    MAX809MEUR+ Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809MEUR+T Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809MEXR+ Material Declaration Reliability Data Single Chip Package
    MAX809MEXR+T Material Declaration Reliability Data Single Chip Package
    MAX809REUR+ Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809REUR+T Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809REXR+ Material Declaration Reliability Data Single Chip Package
    MAX809REXR+T Material Declaration Reliability Data Single Chip Package
    MAX809SEUR+ Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809SEUR+T Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809SEUR+T10 Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809SEUR+TG49 Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809SEXR+ Material Declaration Reliability Data Single Chip Package
    MAX809SEXR+T Material Declaration Reliability Data Single Chip Package
    MAX809TEUR+ Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809TEUR+T Material Declaration Reliability Data 3-SOT_23-N/A
    MAX809TEXR+ Material Declaration Reliability Data Single Chip Package
    MAX809TEXR+T Material Declaration Reliability Data Single Chip Package
    MAX809ZEXR+ Material Declaration Reliability Data Single Chip Package
    MAX809ZEXR+T Material Declaration Reliability Data Single Chip Package
    Wafer Fabrication Data MAX809S Reliability Data

    PCN-PDN Information

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    Select Model for PCN Information
    • MAX809LEXR+ Production
    • MAX809LEXR+T Production
    • MAX809LEXR+T10 Production
    • MAX809MEXR+ Production
    • MAX809MEXR+T Production
    • MAX809REXR+ Production
    • MAX809REXR+T Production
    • MAX809SEXR+ Production
    • MAX809SEXR+T Production
    • MAX809TEXR+ Production
    • MAX809TEXR+T Production
    • MAX809ZEXR+ Production
    • MAX809ZEXR+T Production

    Support & Discussions

    MAX809 Discussions

    RE: HDMI to CVBS conversion
    BF534 SSL sets timer pin to output not input?
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