Maxim Integrated MAX6381XR25D2+ Microprocessor Reset Circuit

The Maxim Integrated MAX6381XR25D2+ is a compact, high-precision microprocessor (μP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring.

Key Features

• Voltage Monitoring: This device is tailored to monitor a 2.5V power supply voltage, ensuring that the system operates within acceptable voltage thresholds.
• Reset Output: The MAX6381XR25D2+ asserts a reset signal whenever the VCC supply voltage falls below the factory-set reset threshold, keeping the μP within a safe operating range.
• Manual Reset Input: A manual reset input is available, allowing for a system reset to be triggered with an external pushbutton or logic signal.
• Low Power Consumption: Designed with power efficiency in mind, this supervisory circuit consumes minimal power, making it ideal for portable and battery-operated applications.
• High Accuracy: The reset threshold accuracy is maintained over the full temperature range, ensuring reliable operation under varying conditions.
• Immune to Short VCC Transients: The device features an in-built debounce circuitry that filters out short-duration voltage transients on the VCC line, avoiding unnecessary resets.

Applications

The MAX6381XR25D2+ is suitable for a wide range of applications, including:

• Portable/Battery-Powered Equipment
• Computers and Controllers
• Embedded Systems
• Data Storage Equipment
• Telecommunication Systems

Package and Reliability

This device comes in a small, 3-pin SC70 package, making it easy to integrate into space-constrained designs. The MAX6381XR25D2+ operates over an extended temperature range, ensuring performance in diverse environments. Its robust design and Maxim Integrated's commitment to quality make this μP supervisory circuit a reliable choice for safeguarding system integrity.