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Ultra-Small, Hex Voltage, Microprocessor Supervisor

Increases Reliability While Reducing Solution Size

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
Reset Thresh. Accur. (%) (@ +25°C) 1.5
Reset Out Active Low
Open Drain
With Internal Pull-Up
Interface Factory Fixed
R/C Adjustable
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 55
Package/Pins UMAX/10
Budgetary
Price (See Notes)
2.4
Parametric specs for Supervisors (> 5 Monitored Voltages)
# Voltages Monitored 5
6
Package/Pins UMAX/10
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Simplified Block Diagram

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Sampling:
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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
Reset Thresh. Accur. (%) (@ +25°C) 1.5
Reset Out Active Low
Open Drain
With Internal Pull-Up
Interface Factory Fixed
R/C Adjustable
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 55
Package/Pins UMAX/10
Budgetary
Price (See Notes)
2.4
Parametric specs for Supervisors (<u>></u> 5 Monitored Voltages)
# Voltages Monitored 5
6
Package/Pins UMAX/10

Key Features

  • Precision Factory-Set Reset Threshold Options 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V, and 0.9V
  • Adjustable Voltage Threshold Monitors Down to 0.5V with 1.5% Accuracy
  • Open-Drain Active-Low RESET Output with 70µA Internal Pullup
  • Fixed 140ms (min) Reset Timeout Period
  • Manual Reset Input
  • Reset Valid for IN1 ≥ 1V or IN2 = 1V
  • Tolerance Select (5%/10%) Input
  • Immune to Short Supply Transients

Applications/Uses

  • Computers
  • Data Storage Equipment
  • Desktop and Notebook Computers
  • High-End Printers
  • Industrial Equipment
  • Networking Equipment
  • Servers/Workstations
  • Set-Top Boxes
  • Telecommunications

Description

The MAX16055 precision hex voltage microprocessor (µP) supervisory circuit monitors up to six system-supply voltages and asserts a single reset when any one supply voltage drops below its preset threshold. The device significantly reduces system size and component count while improving reliability compared to multiple ICs or discrete components.

A variety of factory-trimmed threshold voltages are available to accommodate different supply voltages and tolerance with minimal external components. The MAX16055 includes internally fixed threshold options for monitoring 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, 1.1V, 1.0V, and 0.9V supplies with -5% or -10% tolerance. The MAX16055 is also available with one to five adjustable threshold inputs to monitor voltages down to 0.5V.

A single active-low, open-drain output asserts when any monitored input falls below its associated threshold. The reset output features a weak internal pullup (typically 70µA) to supply input IN1. The reset output remains low for the reset timeout period (140ms, min) after all voltages rise above the selected thresholds. The reset output remains valid as long as either IN1 or IN2 input voltage is above 1V. The MAX16055 is available in a small 10-pin µMAX® (3mm x 3mm) package. The MAX16055 operates over the -40°C to +125°C automotive temperature range.

Simplified Block Diagram

MAX16055: Typical Application Circuit MAX16055: Application 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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.