MAX793RCSE

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MAX793RCSE is a supervisor chip from Maxim Integrated products, which integrates a supervisor circuit, an active-low reset generator and a watchdog timer into a small package. It is a low-cost device which provides a complete system level monitoring solution for various reliable power management solutions. It is designed to monitor power supply presence and reset the host controller in case of a power supply is lost. This application field and working principle will be discussed in this article.

Application Field of MAX793RCSE

The MAX793RCSE provides system level monitoring solutions for many applications. It is well suited for use in embedded system design, providing a low-cost solution for microproceesor/microcontroller systems including 8, 16, and 32-bit systems. It is ideal to use in fully automated test equipment and medical equipment, preventing improper operations and system lock-up. In addition, it is used for fault management in audio/video systems and other power management solutions.

Working Principle of MAX793RCSE

The MAX793RCSE is a three-function device consisting of a supervisor circuit, an active-low reset generator and a watchdog timer. The supervisor circuit includes a reset input and a push-pull output operating from a single +3V to +5.5V supply. Both the reset input and reset output circuits monitor for power supply presence or abnormal power cycling. During this event, the push-pull reset output will be asserted low. It ensures reliable resets with low voltage power supplies, including power up and power down reset functions.

The watchdog timer feature of the MAX793RCSE provides system reliability in embedded systems. This circuit controls the microcontroller functions by generating an active-low reset pulse, designed with a toggle input to reset the watchdog timer. This feature in small packages, such as SO and SOT23-6 packages, offers additional space savings in embedded systems.

Conclusion

The MAX793RCSE is an ideal solution for a wide range of applications to ensure reliable power management solutions. It includes a supervisor circuit, an active-low reset generator, and a watchdog timer, all of which are contained in a small package. It offers the reliability of system level monitoring for various power sources and embedded systems, providing a low-cost and effective solution.

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