1. Products
  2. Power Monitor, Control, and Protection
  3. Supervisory Circuits
  4. Single-Supply Monitors
  5. MAX6466


Features and Benefits

  • Ultra-Low 1.0µA Supply Current
  • Preset Thresholds from +1.6V to +5.5V in 100mV Increments
  • Internal 5% Threshold Hysteresis
  • ±2.5% Threshold Accuracy Over Temperature
  • Internal Timeout Period Option (150ms min)
  • Immune to Short Voltage Transients
  • No External Components
  • Available in Three Output Options: Push-Pull (Active Low/Active High) and Open Drain (Active Low)
  • Fully Specified from -40°C to +125°C
  • Small SC70 and SOT23 Packages
  • Product Details

    The MAX6461-MAX6466 family of ultra-low-power voltage detectors and µP reset supervisory circuits monitors battery, power-supply, and system voltages. Each circuit includes a precision bandgap reference, a comparator, internally trimmed resistor networks that set specified trip thresholds, and an internal 5% threshold hysteresis circuit (see the Functional Diagram). Output is asserted when VCC falls below the internal VTH- and remains asserted until VCC rises above VTH+ (VTH+ = VTH- x 1.05). These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring nominal system voltages from +1.6V to +5.5V. The MAX6461/MAX6462/MAX6463 are voltage detectors with a propagation delay of 17µs.

    The MAX6464/MAX6465/MAX6466 are µP supervisory circuits with a minimum reset timeout period of 150ms. All devices are available with thresholds from +1.6V to +5.5V in 100mV increments.

    The family is available with three output stage options: push-pull with active-low output, push-pull with active-high output, and open drain with active-low output. These devices are available in SC70 and SOT23 packages specified over the -40°C to +125°C temperature range.


    • Cell Phones
    • Cordless Phones
    • Load Switching/Power Sequencing
    • Noise-Immune µP Reset Circuits
    • PDAs
    • Portable Battery-Powered Equipment
    • Portable Medical Devices
    • Power-Supply Monitoring in Digital/Analog Systems
    • Precision Battery Monitoring

    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.

    Product Recommendations

    MAX6466 Companion 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
    MAX6466UR29+ Material Declaration Reliability Data 3-SOT_23-N/A
    MAX6466UR29+T Material Declaration Reliability Data 3-SOT_23-N/A
    MAX6466XR16+ Material Declaration Reliability Data Single Chip Package
    MAX6466XR16+T Material Declaration Reliability Data Single Chip Package
    MAX6466XR18+ Material Declaration Reliability Data Single Chip Package
    MAX6466XR18+T Material Declaration Reliability Data Single Chip Package
    MAX6466XR22+ Material Declaration Reliability Data Single Chip Package
    MAX6466XR22+T Material Declaration Reliability Data Single Chip Package
    MAX6466XR29+ Material Declaration Reliability Data Single Chip Package
    MAX6466XR29+T Material Declaration Reliability Data Single Chip Package
    Wafer Fabrication Data MAX6466 Reliability Data

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