MAX809SN232T1G

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PMIC - Supervisors are a common component in modern integrated circuit design, and the MAX809SN232T1G is a great example of one. These devices monitor the power and voltage levels of systems, sending signals to reset or switch off when the status reaches a certain predetermined level. In this article, we\'ll take a closer look at the applications and how the MAX809SN232T1G works.

Applications

The MAX809SN232T1G is used in a variety of applications, ranging from automotive to consumer and industrial. For vehicles, these supervisors are used to ensure that EMI and ESD standards are met, prevent data loss and protect from short circuits. In consumer electronics, it can also prevent data loss by monitoring the power level and correcting any unexpected voltage changes.

The MAX809SN232T1G can also be used in industrial applications, such as monitoring the power input voltage in process control systems. This helps to prevent unexpected shutdowns, which can have damaging effects on the system. The supervisor is also used in telecommunication systems, providing a reset function when the power input voltage goes below the user-selected value.

Working Principle

The MAX809SN232T1G is an open-drain, 1.8V/3.3V, active-low reset supervisor. It is designed to monitor the power input voltage and detect any voltage drop or power failure, sending a low reset signal to the system. It features a low active-low output for reset and an active-high open-drain output.

The MAX809SN232T1G can be set to reset at 4.63V or higher, 4.87V or higher, 4.76V or higher, 4.88V or higher and 5V or higher. It features an adjustable reset threshold and offers different hysteresis settings for different applications. It also features a small footprint and an input pin for an external reset.

The MAX809SN232T1G also comes with a watchdog timer, which monitors the system and prevents unexpected reboot cycles caused by software failures or unexpected power events. It has an active-high open-drain output and generates a reset signal when the time period exceeds the limit the user has specified. The watchdog timer is enabled/disabled using the open-drain enable pin.

The MAX809SN232T1G is designed to be highly reliable and is widely used in a variety of applications as a result. It provides a reset/shutdown function to ensure that the system operates as expected and also provides a watchdog timer to prevent unexpected reboots. With a small footprint and adjustable reset thresholds, this device is a great option for any system.

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