The MAX6809SUR+T is a compact, highly reliable microprocessor (μP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant layer of protection by ensuring that the μP boots up in a known state every time. This supervisory circuit is particularly useful in systems that require a high level of operational stability and precision.

Key Features

• Precision Monitoring: With tight monitoring accuracy, the MAX6809SUR+T ensures that the system voltage is maintained within specified thresholds for reliable operation.
• Low Power Consumption: Designed for energy-efficient operation, it consumes minimal power, making it suitable for battery-operated devices.
• Manual Reset Input: This feature allows for an external trigger to reset the system, providing additional control to the user or system operator.
• Compact SOT-143 Package: The small footprint of the SOT-143 package saves valuable board space, which is critical in space-constrained applications.

Applications

The MAX6809SUR+T is versatile and can be used in a wide range of applications, including:

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

Technical Specifications

The device operates over a wide voltage range and features several key technical specifications that make it a robust choice for critical system monitoring:

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Accuracy: ±2%
• Operating Temperature: -40°C to +85°C
• Package Type: SOT-143
• RoHS: Compliant with RoHS directives

The MAX6809SUR+T from Maxim Integrated offers a trusted solution for system stability and protection. Its precision voltage monitoring and reset capabilities ensure that digital systems operate reliably and consistently, even in the event of power supply fluctuations or unexpected disruptions.