TPS3839G33DQNR

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TPS3839G33DQNR Application Field and Working Principle

As the power management integrated circuit (PMIC) industry has grown over the years and the demand for efficient, reliable and cost-effective power solutions has increased, the TPS3839G33DQNR supervised reset and power-failure detector has become one of the most popular devices on the market today. The device is designed to provide reset and power-fail detection for large and small system power supplies. This article will discuss the application field and working principle of the TPS3839G33DQNR.

Application Field

The TPS3839G33DQNR supervised reset and power-failure detector is suitable for applications such as servers, gaming consoles, industrial automation, and other systems with high power requirements. It can be used in high-density designs and provides reset and power-fail detection for large and small system power supplies. The device takes input from either the secondary side or the primary side of the DC-DC power supply to monitor power loss. It includes a precision voltage reference, a voltage supervisor, and an adjustable 0.8V–6V reset sense input, making it an ideal choice for many applications.

Working Principle

The working principle of the TPS3839G33DQNR involves the utilization of its voltage supervisor, which performs a supervisory or monitoring function on DC power supplies. The voltage supervisor is typically used to detect system power-ups and power loss by comparing the incoming supply voltage to a reference voltage. If the incoming supply voltage falls below the reference voltage, the supervisor will initiate a reset or shut down the system accordingly. The supervisor can be configured to trigger reset either before the input voltage drops below the reference voltage or after it drops below the reference voltage. Additionally, the supervisor can be configured to issue a reset pulse of adjustable width. This allows for a higher degree of flexibility when using the device in a variety of applications.

When used in combination with its adjustable 0.8V–6V reset sense input, the TPS3839G33DQNR is able to detect power-up and power-down conditions. Furthermore, it offers enhanced protection for systems against overvoltage and undervoltage conditions. This is achieved by the device\'s integrated current-limiting functionality, which dynamically adjusts the voltage of the output pin according to the input levels. This feature is beneficial in ensuring the safety and reliability of system operation during extended power-failure conditions.

In conclusion, the TPS3839G33DQNR provides a comprehensive solution for supervisors in large and small system power supplies. It is capable of detecting power-up and power-down conditions as well as offering enhanced protection against overvoltage and undervoltage conditions, thanks to its integrated current-limiting functionality. Moreover, its adjustable 0.8V–6V reset sense input offers an added degree of flexibility in configuring the device for specific applications. As such, the TPS3839G33DQNR is an excellent choice for all types of PMIC - Supervisors.

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