Maxim Integrated MAX6719UTTGD3 Quad Voltage Microprocessor Supervisor

The Maxim Integrated MAX6719UTTGD3 is a highly reliable quad voltage microprocessor (µP) supervisory circuit designed to monitor multiple power-supply voltages in digital systems. This compact device is an essential component for ensuring system stability and functionality by providing excellent circuit monitoring capabilities in a tiny 6-pin SOT23 package, offering a space-saving solution for densely populated printed circuit boards (PCBs).

The MAX6719UTTGD3 is engineered to maintain system integrity through its ability to monitor up to four system voltages simultaneously. It asserts a reset signal whenever any of the monitored voltages fall below their respective factory-set thresholds, ensuring that the µP and other critical components are reset properly during power-up, power-down, and brown-out conditions. The reset output remains asserted for a minimum timeout period after all voltages rise above their respective thresholds, allowing the system to stabilize before resuming operation.

Key features of the MAX6719UTTGD3 include:

• Quad voltage monitoring for comprehensive system checks
• Factory-set reset voltage thresholds for ease of use
• Manual reset input for additional system control
• Low supply current, making it suitable for battery-operated applications
• Guaranteed reset valid to VCC = 1V for low-voltage operation
• Immune to short VCC transients, enhancing system robustness

This supervisory circuit is ideal for use in a variety of applications, including:

• Computers and servers
• Embedded systems
• Portable/battery-powered devices
• Industrial controllers
• Telecommunications equipment

The MAX6719UTTGD3 operates over a wide temperature range, making it suitable for demanding environments. It also provides a debounced manual reset input that can be activated with an external switch or logic signal. This feature allows for a manual system reset without the need to cycle the power supply, providing additional flexibility and control for system maintenance and troubleshooting.

With its combination of features, the MAX6719UTTGD3 from Maxim Integrated enhances system reliability by providing crucial monitoring and protection for multi-voltage systems, ensuring that digital equipment operates within safe parameters and maintains consistent performance.