Maxim Integrated MAX6719AUTZWD3+T Microprocessor Supervisory Circuit

The Maxim Integrated MAX6719AUTZWD3+T is a high-quality 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 in systems that require voltage monitoring. This supervisory circuit is ideally suited for portable electronics, computers, controllers, and intelligent instruments where it can help to enhance system stability and safety.

The MAX6719AUTZWD3+T supervisory circuit offers a wide variety of features that make it a versatile component for any design engineer. It includes a manual reset input, a reset output, and a watchdog timer. The reset output is active-low and push-pull, which provides a quick and assertive signal to the μP whenever the monitored voltage falls below the factory-set reset threshold. The reset signal remains active until the voltage recovers and stays above the threshold for a preset timeout period, ensuring proper system reset and initialization.

One of the key features of this device is its precision voltage monitoring capability. The factory-set reset thresholds can be set for a range of standard voltages, accommodating different system requirements. Moreover, the integrated watchdog timer helps to ensure that the μP does not hang in an unresponsive state by requiring periodic servicing from the μP to prevent system resets.

The MAX6719AUTZWD3+T operates over a wide supply voltage range and consumes low quiescent current, which is critical for battery-powered applications. This supervisory circuit is available in a small, 6-pin SOT23 package, making it convenient for use in space-constrained applications. Additionally, it is specified over the extended -40°C to +125°C temperature range, allowing it to perform reliably in a variety of environments.

With its robust feature set, the Maxim Integrated MAX6719AUTZWD3+T is an excellent choice for designers looking to enhance the reliability and performance of their systems. Its combination of voltage monitoring, manual reset capability, and watchdog functionality, all in a compact package, make it a valuable addition to any power management solution.