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Quad Voltage Monitor with Four Outputs in µMax Package

Industry's Only Quad Voltage Monitors in µMAX Package

Product Details

The MAX6338 quad voltage monitor is capable of monitoring up to four supplies without any external components. A variety of factory-trimmed threshold voltages and supply tolerances are available to optimize the MAX6338 for specific applications. The selection includes input options for monitoring +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, and -5.0V voltages. An additional high-input impedance comparator option can be used as an adjustable voltage monitor, general-purpose comparator, or digital level translator.

Each of the monitored voltages is available with trip thresholds to support power-supply tolerances of either 5% or 10% below the nominal voltage. An internal bandgap reference ensures accurate trip thresholds across the extended (-40°C to +85°C) operating temperature range.

The MAX6338 consumes 25µA (typ) supply current and operates with supply voltages from +2.5V to +5.5V. An internal undervoltage lockout circuit forces all four digital outputs low when VCC drops below the minimum operating voltage. The four digital outputs all have weak internal pull-ups to VCC, allowing wire-ORed connection. Each input threshold voltage has an independent output.

The MAX6338 is available in a 10-pin µMAX® package.

Key Features

  • Monitors Four Voltages (Factory Programmed or User Adjustable)
    • +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, -5.0V (nominal) or User-Adjustable Settings
  • Low 25µA Supply Current
  • Four Independent, Open-Drain, Active-Low Outputs
  • +2.5V to +5.5V Supply Voltage Range
  • Guaranteed from -40°C to +85°C
  • No External Components Required
  • Small 10-Pin µMAX Package

Applications/Uses

  • Computers: Desktop, Workstation, Server
  • Data Storage Equipment
  • High-End Printers
  • Industrial Equipment
  • Network Equipment
  • Set-Top Boxes
  • Telecommunications
Parametric specs for Supervisors (4 Monitored Voltages)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active Low
Open Drain
tRESET (min) <1ms
Watchdog Feature No Watchdog
Supervisor Features Adjustable Reset Input
Negative Voltage
ICC (µA) (max) 40
Package/Pins UMAX/10
Budgetary
Price (See Notes)
$2.49 @1k
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Simplified Block Diagram

MAX6338: Typical Operating Circuit MAX6338: Typical Operating Circuit Zoom icon

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Parameters

Parametric specs for Supervisors (4 Monitored Voltages)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 2.5
Reset Out Active Low
Open Drain
tRESET (min) <1ms
Watchdog Feature No Watchdog
Supervisor Features Adjustable Reset Input
Negative Voltage
ICC (µA) (max) 40
Package/Pins UMAX/10
Budgetary
Price (See Notes)
$2.49 @1k

Key Features

  • Monitors Four Voltages (Factory Programmed or User Adjustable)
    • +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, -5.0V (nominal) or User-Adjustable Settings
  • Low 25µA Supply Current
  • Four Independent, Open-Drain, Active-Low Outputs
  • +2.5V to +5.5V Supply Voltage Range
  • Guaranteed from -40°C to +85°C
  • No External Components Required
  • Small 10-Pin µMAX Package

Applications/Uses

  • Computers: Desktop, Workstation, Server
  • Data Storage Equipment
  • High-End Printers
  • Industrial Equipment
  • Network Equipment
  • Set-Top Boxes
  • Telecommunications

Description

The MAX6338 quad voltage monitor is capable of monitoring up to four supplies without any external components. A variety of factory-trimmed threshold voltages and supply tolerances are available to optimize the MAX6338 for specific applications. The selection includes input options for monitoring +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, and -5.0V voltages. An additional high-input impedance comparator option can be used as an adjustable voltage monitor, general-purpose comparator, or digital level translator.

Each of the monitored voltages is available with trip thresholds to support power-supply tolerances of either 5% or 10% below the nominal voltage. An internal bandgap reference ensures accurate trip thresholds across the extended (-40°C to +85°C) operating temperature range.

The MAX6338 consumes 25µA (typ) supply current and operates with supply voltages from +2.5V to +5.5V. An internal undervoltage lockout circuit forces all four digital outputs low when VCC drops below the minimum operating voltage. The four digital outputs all have weak internal pull-ups to VCC, allowing wire-ORed connection. Each input threshold voltage has an independent output.

The MAX6338 is available in a 10-pin µMAX® package.

Simplified Block Diagram

MAX6338: Typical Operating Circuit MAX6338: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal