MAX6394

PRODUCTION

MAX6394

High-Accuracy µP Reset Circuit

µP Supervisor Provides the Highest Accuracy at 1%

PRODUCTION

MAX6394: Typical Operating Circuit slide

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Features

±0.6% Threshold Accuracy at T_A = +25°C
±1.0% Threshold Accuracy from -40°C to +125°C
Small SOT143 Package
Open-Drain Active-Low RESET Output Can Exceed V_CC
Precision, Factory-Set V_CC Reset Thresholds: Nine Options from 2.4V to 4.8V
Four Reset Timeout Periods Available: 0.7ms, 14ms, 105ms, and 826ms (minimum)
Immune to Short V_CC Transients
5µA Supply Current
AEC-Q100 Qualified, Refer to Ordering Information for Specific /V Part

Additional Details

The MAX6394 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. It offers excellent circuit reliability by providing 1% accurate thresholds over temperature and by eliminating external components and adjustments. The MAX6394 also provides a debounced manual reset input.

This device performs a single function: it asserts a reset signal whenever the V_CC supply voltage falls below a preset threshold or whenever manual reset is asserted. Active-low RESET remains asserted for an internally programmed interval (reset timeout period) after V_CC has risen above the reset threshold or manual reset is deasserted. The MAX6394's open-drain active-low RESET output can be pulled up to a voltage higher than V_CC.

The MAX6394 comes with factory-trimmed reset threshold voltages from 2.4V to 4.8V. Preset timeout periods of 0.7ms, 14ms, 105ms, and 826ms are also available. The device comes in a SOT143 package.

Applications

Computers
Controllers
Critical µP and µC Power Monitoring
Intelligent Instruments
Portable/Battery-Powered Equipment

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Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

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FAQs

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Part Models 24

1ku List Price Starting From $2.02

Technical Documents 2

MAX6394: High-Accuracy µP Reset Circuit Data Sheet (Rev.5) 01/22/2020

MAX6394 Reliability Data 01/12/2023

Reference Materials 1

Voltage Monitors and Supervisors Product Highlights 01/23/2023

Design Resources 24

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 Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX6394US240D3+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US240D3+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US300D1+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US300D1+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US310D3+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US310D3+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US317D2+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US317D2+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US317D2/V+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US317D2/V+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US317D3+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US317D3+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US455D2+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US455D2+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US470D1+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US470D1+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D1+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D1/V+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D1/V+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D2+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D3+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D3+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D3/V+	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX6394US480D3/V+T	4-SOT_23-N/A	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX6394US240D3+
Pin/Package Drawing
4-SOT_23-N/A
Documentation

MAX6394

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Documentation

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Feb 4, 2015

Aug 4, 2020

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Jan 17, 2018

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