MAX6380XR34-T

MAX6380XR34-T is a low-cost supervisor for embedded processor and system reset. This integrated device combines the features of multiple components into a single chip, helping to reduce board space, increase system reliability and minimize total solution cost for embedded systems.

Application Field of MAX6380XR34-T
MAX6380XR34-T is designed to provide a cost-effective solution in supervising the power, reset and clock signals of microprocessors and embedded system. The device requires only a few external components such as a resistor and capacitor to monitor a wide range of supply voltages. It can be used to monitor both primary and backup supply voltages, and monitor up to three on-chip system clocks to ensure that the system is up and running in safe operating conditions.

Working Principle of MAX6380XR34-T
The MAX6380XR34-T contains four comparators. One is used to monitor the primary supply voltage, and the other three are used to monitor three auxiliary supply voltages. When the supply voltage falls below or rises above the predetermined thresholds, the reset output will be asserted. Furthermore, one of the clock monitors can be used to clamp the system reset if the system clock is not running or is in the wrong frequency range. In other words, the device monitors the primary power supply, and the other three are used to monitor three auxiliary power supplies, three clock signals, or a combination of power supply and clock signals.

The MAX6380XR34-T employs a two-level reset architecture to ensure system reliability. The internal reset timer is used to provide a delay to allow the system to stabilize before de-asserting the reset. The reset timer can be set by an external resistor and capacitor, and it can be disabled if the system requires an instantaneous reset. The device can provide reset status signals, and it can also be used to implement brown-out detection, temperature monitoring, and clock detection.

At power-up, the MAX6380XR34-T will assert the reset signal. When the power supply reaches the predetermined threshold, the reset signal will be de-asserted. The device can also monitor the clock signals, and if any of the monitored clock signals fall outside of the predetermined range, the reset signal will be reasserted. Finally, the device can provide external reset status signals to indicate the reset or power-on status.

In summary, the MAX6380XR34-T is a low-cost single-chip supervisor perfect for use in embedded processor and system reset applications. It requires only a few external components to monitor a wide range of supply voltages, and can provide reset status signals, additional system protection and temperature monitoring.