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Low-Voltage, High-Accuracy, Quad Window Monitor in Small TQFN Package

1.5% Accurate, Quad Window Monitor Provides Precision Monitoring

Product Details

Key Features

Parametric specs for Supervisors (4 Monitored Voltages)
Reset Thresh. (V) 0 to 1.2
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) 1.5
Reset Out Active Low
Open Drain
With Internal Pull-Up
Interface R/C Adjustable
tRESET (min) <1ms
Supervisor Features Adjustable Reset Input
Overvoltage/Window Monitor
ICC (µA) (max) 70
Package/Pins TQFN/20
Budgetary
Price (See Notes)
5.85
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Simplified Block Diagram

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Parameters

Parametric specs for Supervisors (4 Monitored Voltages)
Reset Thresh. (V) 0 to 1.2
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) 1.5
Reset Out Active Low
Open Drain
With Internal Pull-Up
Interface R/C Adjustable
tRESET (min) <1ms
Supervisor Features Adjustable Reset Input
Overvoltage/Window Monitor
ICC (µA) (max) 70
Package/Pins TQFN/20
Budgetary
Price (See Notes)
5.85

Key Features

  • Monitor Four Undervoltage/Overvoltage Conditions
  • 1.5% Accuracy Over Temperature
  • User-Adjustable Thresholds (Down to 0.4V)
  • Open-Drain Outputs with Internal Pullups Reduce the Number of External Components
  • Manual Reset Input (MAX16009)
  • Margin Enable Input
  • Fixed or Adjustable Active-Low RESET Timeout (MAX16009)
  • Guaranteed Correct Output Logic State Down to VCC = 1V
  • Fully Specified from -40°C to +125°C
  • Small, 4mm x 4mm TQFN Package

Applications/Uses

  • Multivoltage ASICs
  • Networking/Telecommunication Equipment
  • Servers
  • Storage Equipment

Description

The MAX16008/MAX16009 are adjustable quad window voltage detectors in a small thin QFN package. These devices are designed to provide a higher level of system reliability by monitoring multiple supply voltages and providing a fault signal when any of the voltages exceed their overvoltage thresholds or fall below their undervoltage thresholds.

These devices offer user-adjustable thresholds that allow voltages to be monitored down to 0.4V. These devices allow the upper and lower trip thresholds of each window detector to be set externally with the use of three external resistors.

Each monitored threshold has an independent opendrain output for signaling a fault condition. The outputs can be wire OR'ed together to provide a single fault output. The open-drain outputs are internally pulled up with a 30µA current, but can be externally driven to other voltage levels for interfacing to other logic levels.

Both devices feature a margin input to disable the outputs during margin testing or any other time after power-up operations. The MAX16009 offers a reset output that deasserts after a reset timeout period after all voltages are within their threshold specifications. The reset timeout is internally set to 140ms (min), but can be externally adjusted to other reset timeouts using an external capacitor. In addition, the MAX16009 offers a manual reset input.

All devices are offered in a 4mm x 4mm TQFN package and are fully specified from -40°C to +125°C.

Simplified Block Diagram

MAX16008, MAX16009: Typical Operating Circuit MAX16008, MAX16009: 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 .