Product Overview: MAX6328UR29+T from Maxim Integrated

The MAX6328UR29+T is a precision, low-power, low-voltage 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 in portable electronics, such as laptops, smartphones, and PDAs, as well as for data storage and other systems with low-voltage power supplies.

This supervisory circuit ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The reset output remains asserted for a minimum timeout period after V<sub>CC has risen above the reset threshold level, providing a stable system reset. The MAX6328UR29+T operates with a factory-set reset threshold voltage of 2.93V, catering to systems that run on 3V power supplies.

One of the key features of this device is its low supply current of only 1.2µA, which is crucial for battery-powered applications where power conservation is paramount. This helps in extending the battery life of the portable devices it is used in. The MAX6328UR29+T is also designed to operate over a wide temperature range of -40°C to +85°C, making it suitable for most industrial applications.

The device is available in a small SOT23 package, ensuring a compact footprint on PCBs. This is especially beneficial for space-constrained applications. The MAX6328UR29+T also includes an active-low push-pull reset output, which provides a direct interface to the reset pin of the µP without requiring external transistors, further simplifying the design and reducing component count.

Maxim Integrated's MAX6328UR29+T is a reliable choice for system designers looking for a µP supervisory circuit that offers a combination of low power consumption, precision monitoring, and ease of integration, all of which contribute to the robustness and efficiency of the overall system.