X40021S14Z-AT1

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PMIC - Supervisors are a type of power-management integrated circuit (PMIC) designed to protect an electronic circuit from damage due to voltages that are either too high or too low. The X40021S14Z-AT1 is one such PMIC - Supervisor, designed to protect a variety of diverse applications including computers and mobile phones. This article aims to provide an overview of the application field of the X40021S14Z-AT1 and its working principle.

Applications

The X40021S14Z-AT1 is a general purpose supervisor microcontroller designed to provide voltage-monitoring capabilities and system reset protection for a variety of applications. It is constructed on a 40-pin SSOP package and is ideally suited for use in applications such as PCs, laptops, tablets, mobile handsets, IPS monitors, STB (Set-top-Box) systems, automotive applications and industrial products.

The X40021S14Z-AT1 provides protection from both low-voltage (UVLO) and over-voltage (OVLO) events, making it suitable for protecting against voltage fluctuations caused by operation of multiple loads or sudden power surges. In addition, the X40021S14Z-AT1 provides low-voltage and under-voltage reset functionality, as well as active and reset signals to indicate the power voltage. This makes it ideal for use in applications where multiple loads are sharing a single power supply.

Working Principle

The working principle behind the X40021S14Z-AT1 is fairly simple. The device features a wide range of input voltage accepts, ranging from 4.75V to28V, allowing it to protect circuits from both low and high voltage levels. The device is also equipped with a voltage monitor, which will detect when the input voltage deviates from the threshold set by the voltage monitor level. Once the fault has been detected, the X40021S14Z-AT1 will trigger a reset pulse, resetting the system and restoring it to its previous level.

In addition to providing voltage monitoring, the X40021S14Z-AT1 also incorporates several unique features that make it particularly useful for certain types of applications. For example, the device can be configured to provide power supply sequencing, allowing it to power up and power down in the correct order. This can be beneficial for applications such as cell phones and laptops, as power sequencing can help to protect the system from damage caused by power surges.

The X40021S14Z-AT1 also features adjustable delay and recovery times, enabling it to provide protection against false reset events due to noise. This feature is particularly useful in applications that are exposed to high levels of electrical interference. Furthermore, the device provides protection against continuous changes in input voltage and allows the user to define the system\'s minimum and maximum reset thresholds.

Conclusion

The X40021S14Z-AT1 is an advanced supervisors microcontroller designed to provide voltage-monitoring and system reset protection for a variety of applications. The device offers protection from both low-voltage and over-voltage events, making it ideal for protecting against voltage fluctuations caused by the operation of multiple loads. In addition, the X40021S14Z-AT1 offers several additional features, such as power supply sequencing, adjustable delay and recovery times, and protection against continuous changes in input voltage. As such, the X40021S14Z-AT1 is an invaluable tool for protecting any electronic circuit from damage due to incorrect voltages.

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