Voltage Detectors

Low-cost, SC70 Voltage Detectors

Please check latest availability status for a specific part variant.


The MAX6806/MAX6807/MAX6808 precision voltage detectors are ideal for accurate monitoring of power supplies in digital systems. They provide circuit reliability and reduce total cost by eliminating external components and adjustments.

The MAX6806/MAX6807/MAX6808 assert a reset signal whenever the supply voltage (VCC) falls below the factory-preset, ±2% accurate threshold. Internal hysteresis ensures stable switching. The MAX6806/MAX6807/MAX6808 are available in 4.6V and 2.6V thresholds (2.3V is also available for the MAX6806 only). The MAX6806 features a push-pull active-low RESET output; the MAX6807 features an active-high, push-pull RESET output; and the MAX6808 features an open-drain, active-low RESET output. Active-low RESET is valid for VCC down to 1V (MAX6806/MAX6808), and RESET (MAX6807) is guaranteed for VCC down to 1.2V.

The MAX6806/MAX6807/MAX6808 are available in 3-pin SC70, 3-pin SOT23, 8-pin µMAX®, 8-pin SO, and 4-pin SOT143 packages. The SOT143 package includes a manual-reset input.
MAX6806, MAX6807, MAX6808: Typical Operating Circuit MAX6806, MAX6807, MAX6808: Typical Operating Circuit Enlarge+

Key Features

  • Preset Reset Thresholds: 4.6V and 2.6V (2.3V also available for MAX6806 only)
  • ±2% Accurate Reset Thresholds
  • Reset Output Available in Active-Low (MAX6806), Active-High (MAX6807), and Open-Drain (MAX6808) Versions
  • Immune to Power-Supply Transients
  • Active-Low RESET Valid to VCC = 1.0V (MAX6806/MAX6808)
  • 35µA Supply Current
  • No External Components
  • Manual Reset Available with 4-Pin SOT143 Package
  • Miniature 3-Pin SC70, 3-Pin SOT23, and 4-Pin SOT143 Packages
  • 8 Lead µMAX and 8 Lead SO Packages are Pin Compatible with the MC33064/MC33164/MC34064/MC34164


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

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX6806 
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Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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