Maxim Integrated MAX6719UTLTD3 Microprocessor Supervisory Circuit

The MAX6719UTLTD3 from Maxim Integrated is a highly reliable and compact 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 with 5V-powered circuits.

This supervisory circuit is particularly adept at monitoring µP and digital systems to ensure proper operation during power-up, operation, and power-down. The MAX6719UTLTD3 asserts a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. This feature safeguards the system against unpredictable behavior in the event of low voltage conditions.

One of the key features of the MAX6719UTLTD3 is its ability to generate a reset signal on both power-up and power-down, ensuring that the µP starts in a known state and preventing code execution errors during low voltage conditions. The device also includes a manual reset input that allows for a reset to be triggered with an external switch or other input, providing an additional layer of system control.

The MAX6719UTLTD3 comes in a small, 6-pin SOT23 package, making it ideal for space-constrained applications. Its low supply current of 6µA (typical) is particularly beneficial for portable and battery-powered equipment. The device operates over a wide temperature range of -40°C to +125°C, ensuring reliable performance across various operating conditions.

With its precision voltage monitoring and versatile functionality, the MAX6719UTLTD3 is an excellent choice for use in microprocessor systems, computers, controllers, and intelligent instruments. Its integration into a system helps to enhance the overall stability and reliability, safeguarding the integrity of the digital system it supports.

Overall, the Maxim Integrated MAX6719UTLTD3 is a robust and essential component for any design engineer looking to enhance system reliability in their digital system designs.