Maxim Integrated MAX821UUS-T Voltage Supervisor IC

The Maxim Integrated MAX821UUS-T is a precision voltage supervisor IC designed to ensure reliable operation of microprocessor (µP) systems. It is a crucial component for applications requiring voltage monitoring and management, such as computers, controllers, and intelligent instruments. This IC is specifically engineered to monitor power supplies in µP and digital systems, providing a reset signal to the µP upon detection of out-of-tolerance power supply conditions.

The MAX821UUS-T boasts a range of features that make it an essential part of any power management solution. Its key attributes include a low supply current, which is particularly beneficial for battery-powered applications where power efficiency is critical. The device operates over a wide voltage range and offers an adjustable reset threshold, allowing designers to tailor the reset voltage according to specific system requirements.

With its small SOT-143 package, the MAX821UUS-T is ideal for space-constrained applications. Its compact form factor does not compromise its performance or reliability, making it a versatile choice for various electronic products. The device includes an active-low reset output, which remains asserted until the monitored voltage exceeds the reset threshold and the reset timeout period has elapsed, ensuring the µP has adequate time to initialize.

The MAX821UUS-T also features a manual reset input, providing a convenient way to initiate a system reset without cycling the power. This manual reset capability can be used for system testing or to recover from software lockup conditions. The device's built-in debounce circuitry ensures that the manual reset input is noise-tolerant, reducing the chance of false triggering.

Overall, the Maxim Integrated MAX821UUS-T is a robust and reliable solution for voltage supervision in critical applications. Its precise monitoring capabilities, low power consumption, and small size make it an excellent choice for designers looking to enhance the stability and performance of their microprocessor-based systems.