MAX6731AUTTD3+

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PMIC - Supervisors

Power management integrated circuits (PMICs) are the key components used in most systems that manage power. They provide the interface between power sources such as batteries and the system that uses the power. PMICs can offer a variety of features including overvoltage protection, sequencing, sequencing control, and linear and switching regulators.

PMICs can be broken down into several categories, such as voltage supervisors, power supplliers, and power switches. Supervisors are used to control and monitor the power conditions of a circuit, such as a system reset, power conduction control, and clocking.

One particular supervisor IC is the MAX6731AUTTD3+. This device is designed to interface with a power supply and to detect over-or-under voltage conditions. It features an adjustable voltage trigger and delay, preventing system resets due to battery or power supply variation.

Application Field

The MAX6731AUTTD3+ is ideal for applications where protection against over or under voltage is required, such as in computer systems, televisions, radio receivers, and automotive electrical systems.

It is also excellent for use in electronics in the medical field. This supervisor has low quiescent current and fast response time, providing reliable protection for sensitive systems.

Working Principle

The MAX6731AUTTD3+ works by monitoring the supply voltage of a system. When the voltage goes beyond the maximum/minimum voltage settings, an active output will be sent to the system, creating a reset.

The device can be configured for either active low or active high logic levels. This allows engineers to choose the type of output based on the system. The MAX6731 can also be configured to generate a reset pulse, which actively pulses the output during an overvoltage or undervoltage condition.

The MAX6731AUTTD3+ also features programmable delays and reset timeouts. This allows engineers to configure the reset time to prevent spurious resets due to voltage transients.

Conclusion

The MAX6731AUTTD3+ is a reliable and versatile power supervisor IC that allows engineers to ensure the safe operation of their electronic systems. Its adjustable voltage trigger and delay ensures effective protection against over or under voltage, while its programmable delays and reset timeouts provide additional flexibility.

When used properly, the MAX6731 can provide a high level of protection for vital systems and components, enabling them to work confidently and safely.

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