MAX6725AKASHD3+T

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Power Management Integrated Circuits (PMICs) form a necessary component of any digital hardware’s design. Supervisors are a very important class of PMICs that are used for monitoring power supply and resetting the system, among other functions. The MAX6725AKASHD3+T is a cost-effective Supervisor IC from Maxim Integrated that provides protection from both power supply transients and faults in digital designs (especially those with an I²C compatible bus).

The MAX6725AKASHD3+T specializes in protecting devices from overvoltage and undervoltage conditions, as well as brownout conditions, making it an ideal solution for applications like cellular basebands, point-of-sale terminals, industrial automation, and secure data systems. It can detect faults on power rails with accurate precision, helping to maintain device stability and reliability even in extreme conditions.

The MAX6725AKASHD3+T operates with a minimum supply voltage of 2.7V and a maximum supply voltage of 5.5V. It has two integrated undervoltage (UV) comparators,two open-drain push-pull voltage POR channels, two open-drain push-pull reset comparators and a selectable logic level output reset. It has a temperature range of -40°C to +85°C, making it suitable for use in a wide range of applications.

The MAX6725AKASHD3+T is available in an 8-pin, 4x3 uDFN package, making it well suited for space-constrained applications. Its input voltages are monitored internally, so they don’t need to be externally connected, thus making it a low-cost and efficient solution.

The device is designed to provide reset protection for I²C buses. It monitors the power supply voltage and sends an interrupt signal to the microcontroller when the input voltage is outside the user-programmable range. It also supports brown-out detection, meaning it will detect when the input voltage approaches a selected threshold, allowing the system to take proactive measures before the voltage falls too low. The MAX6725AKASHD3+T also provides an active low reset signal when the input voltage falls outside the programmed range.

The MAX6725AKASHD3+T also features an adjustable reset timeout that can monitor both the voltage and the current overshoots or undershoots to ensure operation within the desired limits. This reset timeout duration is determined by a user-programmable timer and can be adjusted as needed. Additionally, it can be configured to detect a voltage transient that occurs over a duration of less than 250 μs, thus providing reliable protection against transient signals.

In addition to providing reset protection, the MAX6725AKASHD3+T has thermal shutdown protection which will disable the device when the temperature exceeds 125°C, preserving system reliability and protecting against faulty designs.

The MAX6725AKASHD3+T offers robust protection from power supply transients and faults in digital designs and is an ideal solution for ensuring system stability and reliability in a wide range of applications.

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