Maxim Integrated MAX6719UTYFD3+T Microprocessor Supervisory Circuits

The MAX6719UTYFD3+T from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies and µP activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with multiple supply voltages.

This device is particularly well-suited for portable and battery-powered applications due to its low power consumption and compact SOT23 package. The MAX6719UTYFD3+T offers a variety of features that ensure system stability and functionality under varying power conditions.

Key Features:

• Quad Voltage Monitoring: This supervisory circuit can monitor four voltage thresholds, making it ideal for systems with multiple power supply voltages that need to be supervised simultaneously.
• Manual Reset Input: It includes a manual reset input that allows for a system reset to be triggered with an external button or logic signal, providing an additional layer of control.
• Power-Fail Input/Reset Output: The device features a power-fail input and a reset output, which provides an early warning of a failing power supply, allowing the system to take corrective action before a full reset is necessary.
• Low Supply Current: With its low supply current of 7µA (typical), the MAX6719UTYFD3+T is an energy-efficient choice for battery-operated devices.
• Adjustable Reset Timeout: The reset timeout period can be set by external capacitors, allowing designers to customize the reset deassertion delay according to their system requirements.
• Guaranteed Reset Valid to VCC = 1V: Ensures that the reset output will remain in the correct state even at very low supply voltages, providing reliable operation throughout the entire voltage range.

Applications:

The versatility of the MAX6719UTYFD3+T makes it an excellent choice for a broad range of applications, including:

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

With its robust feature set and Maxim Integrated's reputation for quality, the MAX6719UTYFD3+T supervisory circuit is a top choice for designers looking to enhance system reliability in their digital and portable applications.