MAX6721UTSVD3+T

Power management integrated circuits (PMICs) have become increasingly popular in the digital world since they reduce cost and improve power efficiency. PMICs are divided into several categories, including voltage regulators, battery management ICs, and charge pumps. One of the less common but important families of devices is known supervisors. Supervisors ensure a safe, reliable power-up sequence for various systems, such as microcontrollers and processors. The MAX6721UTSVD3+T is a supervisor device from MAXIM Integrated that combines two supervisors, one for low voltage, and one for general use, into a single package. This article will discuss the application fields of the MAX6721UTSVD3+T and how it works.

Application Field

The MAX6721UTSVD3+T is suitable for various configurations, including but not limited to low voltage microprocessor systems, mobile and portable devices, digital TVs, and embedded systems. The supervisor is designed to withstand rapid changes in input voltage and power, so it is a useful option in any system that requires an exceedingly reliable power-up sequence. The MAX6721UTSVD3+T is also available in a low profile, space-saving VDFN-8 package for easier integration into tight spaces. Additionally, the supervisor consumes minimal power and allows for reliable power sequencing in low power systems.

Working Principle

The MAX6721UTSVD3+T works by monitoring the input voltage and signaling a reset when the voltage drops below a user-defined threshold. The supervisor is easy to configure as it requires minimal external components and provides an option to choose between open drain, push-pull, and pulse reset modes. The output logic can also be inverted and the maximum reset pulse width can be adjusted to the needs of the system. The MAX6721UTSVD3+T provides a wide operating temperature range of -40℃ to +85℃ with reliable reset response. Furthermore, the supervisor will withstand up to 6V of input voltage, ensuring it can be used in both low and high voltage applications without issue.

Conclusion

The MAX6721UTSVD3+T offers a reliable, cost-effective solution for providing a safe, fast power-up sequence for microcontrollers, digital TVs, and other embedded systems. The supervisor is easy to configure and occupies minimal board space, making it a desirable choice for designers looking to improve the power failure resilience of their products. Moreover, the MAX6721UTSVD3+T offers a wide operating temperature range and can tolerate up to 6V of input voltage, ensuring it supports numerous designs and applications.