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MAX6394: High-Accuracy µP Reset Circuit Data Sheet (Rev. 5)1/22/2020PDF836K
Overview
Features and Benefits
- ±0.6% Threshold Accuracy at TA = +25°C
- ±1.0% Threshold Accuracy from -40°C to +125°C
- Small SOT143 Package
- Open-Drain Active-Low RESET Output Can Exceed VCC
- Precision, Factory-Set VCC 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 VCC Transients
- 5µA Supply Current
- AEC-Q100 Qualified, Refer to Ordering Information for Specific /V Part
Product 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 VCC 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 VCC 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 VCC.
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
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
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MAX6394 Reliability Data1/12/2023PDF159K
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Voltage Monitors and Supervisors Product Highlights1/23/2023PDF0 M
Design Resources
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.
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