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  2. Power Monitor, Control, and Protection
  3. Supervisory Circuits
  4. Single-Supply Monitors
  5. MAX825

Data Sheet Rev. 5
CN Rev. 5 | JP Rev. 5

Overview

Features and Benefits

  • Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power Supplies
  • Operating Current:
    • 6µA (MAX823L/M) (SC70)
    • 2µA (MAX825T/S/R/Z/Y) (SC70)
  • Fully Specified Over Temperature
  • 140ms min Power-On Reset
  • Guaranteed active-low RESET Valid to VCC = 1V
  • Power-Supply Transient Immunity
  • Watchdog Timer with 1.6s Timeout (MAX823/MAX824)
  • Manual Reset Input (MAX823/MAX825)
  • No External Components

Product Details

The MAX823/MAX824/MAX825 microprocessor (µP) supervisory circuits combine reset output, watchdog, and manual reset input functions in 5-pin SOT23 and SC70 packages. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX823/MAX824/MAX825 are specifically designed to ignore fast transients on VCC.

Seven preprogrammed reset threshold voltages are available (see Reset Threshold Table in the full data sheet). All three devices have an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1V. The MAX823 also offers a watchdog input and manual reset input. The MAX824 offers a watchdog input and a complementary active-high reset. The MAX825 offers a manual reset input and a complementary active-high reset. The Selector Guide explains the functions offered in this series of parts.

Applications

  • Automotive Electronics
  • Computers and Controllers
  • Critical µP Monitoring
  • Embedded Controllers
  • 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 (2)
  • Data Sheets (1)
  • Technical Articles (1)
    • Document Type

    Product Recommendations

    MAX825 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
    MAX825LEUK+ Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825LEUK+T Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825LEXK+ Material Declaration Reliability Data 5-SC70-N/A
    MAX825LEXK+T Material Declaration Reliability Data 5-SC70-N/A
    MAX825MEUK+ Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825MEUK+T Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825REUK+ Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825REUK+T Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825SEUK+ Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825SEUK+T Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825SEXK+T Material Declaration Reliability Data 5-SC70-N/A
    MAX825TEUK+ Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825TEUK+T Material Declaration Reliability Data 5-SOT_23-N/A
    MAX825TEXK+ Material Declaration Reliability Data 5-SC70-N/A
    MAX825TEXK+T Material Declaration Reliability Data 5-SC70-N/A
    MAX825ZEXK+T Material Declaration Reliability Data 5-SC70-N/A
    Wafer Fabrication Data

    PCN-PDN Information

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    Select Model for PCN Information
    • MAX825MEUK+ Production
    • MAX825MEUK+T Production
    • MAX825REUK+ Production
    • MAX825REUK+T Production

    Support & Discussions

    MAX825 Contact ADI Technical Support »
    MAX825 Ask your question »
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