The MAX819MESA+ from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V-powered circuits.

Key Features

• Voltage Monitoring: This device offers precision monitoring of its own power supply voltage with a factory-set reset threshold level, ensuring that your system operates within safe voltage levels.
• Power-On Reset: The MAX819MESA+ generates a reset signal whenever the VCC supply voltage declines below the preset threshold, keeping your system's operation stable and reliable.
• Manual Reset: A manual reset feature allows for a reset to be triggered with an external button or signal, providing additional control over the reset functionality.
• Reset Delay: It features a reset timeout delay which ensures that the reset signal is maintained for an adequate period to allow the system to stabilize.
• Low Power Consumption: The device's low power consumption makes it suitable for battery-operated applications.
• Compact Package: It comes in a compact 8-pin SOIC package, which is ideal for space-constrained applications.

Applications

The MAX819MESA+ is versatile and can be used in a variety of applications including:

• Computers and Controllers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Intelligent Instruments
• Critical µP Power Monitoring

Technical Specifications

With a wide operating temperature range from -40°C to +85°C and a reset threshold voltage typically at 4.65V, the MAX819MESA+ is designed to perform reliably in a range of environmental conditions. The device also features an active-low RESET output, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold, providing ample time for the system to recover from a low voltage condition.

Maxim Integrated's commitment to quality and reliability makes the MAX819MESA+ an excellent choice for ensuring the stable operation of your digital systems and microprocessors.