TPS3305-25DGNG4

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Power Management ICs (PMICs) are essential components of today\'s electronic systems. They provide independent control and monitoring functions, helping to ensure the safe and reliable operation of electronic devices. Supervisory circuits are an important subcategory of PMICs and are used to ensure that none of the system\'s components are damaged due to overvoltage or excessive current. The TPS3305-25DGNG4 supervision circuit is an adjustable and highly accurate overvoltage protection circuit with built-in accurate current sensing. It is used mainly in personal electronics such as laptops and tablets, but can also have other applications. In this article, we will discuss the application field of the TPS3305-25DGNG4 supervisory circuit and its working principle.

Application Field of TPS3305-25DGNG4 Supervisory Circuit

The TPS3305-25DGNG4 supervisory circuit is mainly used in personal electronic devices such as laptops and tablets, but can also be found in other applications. It is well suited for applications requiring accurate current sensing and protection against dangerous surges of current. It has built-in protection against overvoltage and can be used for both system reset and warm reset functions. The TPS3305-25DGNG4 can also be used as a watchdog timer for system monitoring, ensuring that the system is operating correctly and safely. The circuit is also capable of providing regulated signals from its microcontroller to other functions in the system.

Working Principle of the TPS3305-25DGNG4 Supervisory Circuit

The TPS3305-25DGNG4 supervisory circuit uses an adjustable voltage regulator with built-in accurate current sensing capability. This allows the regulator to accurately detect the presence of an overvoltage or excessive current in the system. It does this by monitoring the voltage at the microcontroller pins. Upon detecting an overvoltage or excessive current, the regulator will shut down the system, preventing damage to the microcontroller or other components in the system. The regulator can be manually adjusted using an external voltage divider, allowing the user to adjust the threshold levels as required.

The circuit also contains an independent watchdog timer which can be programmed to reset the system after a predetermined period. The watchdog timer can be programmed to detect any faults in system operation and if detected will reset the system and restart the microcontroller. The watchdog timer can also be used to monitor the system’s performance and can trigger system reset if it detects any issues.

The TPS3305-25DGNG4 supervisory circuit is used in many personal electronic devices to provide a reliable, adjustable and accurate mechanism for overvoltage protection. The circuit’s features make it suitable for a wide range of applications, from system reset to overvoltage protection and watchdog timer functions.

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