TPS3823-25DBVT

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PMIC (Power Management Integrated Circuit) Supervisors are a type of IC that are used for automated system control, protection and management of sophisticated electronics used in a variety of applications. The TPS3823-25DBVT is a general purpose supervisor IC designed to help provide proper power management in sophisticated circuits. This article will discuss the application fields and the working principle of the TPS3823-25DBVT supervisor.

The TPS3823-25DBVT supervises the supply voltage and initiates a system reset when the voltage level crosses the threshold. This supervisor can be used for both system reset and power sequencing for two independent power rail systems. The supervisor includes both an internal microcontroller and a comparator to provide efficient power management. It also features an adjustable reset threshold voltage and a programmable reset time. The adjustable reset threshold can be set between 2.8V to 5.5V, while the reset time can be set between 10ms to 2500ms.

One of the primary applications of the TPS3823-25DBVT is cellular/mobile phones. The supervisor can be used to monitor various power voltages in mobile phones, such as the power supply voltage, the battery voltage and the USB port voltage. It can detect any variation in the voltage and initiate a system reset if the variation is out of the specified threshold. Additionally, the TPS3823-25DBVT can also be used for reset and power sequencing in air conditioning, office automation, medical equipment, consumer electronics and many other applications.

The basic working principle of the TPS3823-25DBVT is that it monitors the power voltage and triggers a system reset if the voltage goes below or above the specified threshold. The comparator of the supervisor compares the voltage from the power supplies to an internal voltage reference and the voltage is continuously monitored. Whenever the voltage level crosses the threshold, the supervisor initiates a reset. The reset time is adjustable, depending on the application requirements. The supervisor also includes a POR (Power-on Reset) functionality, which is used to reset or configure the system every time the power is turned on.

The TPS3823-25DBVT is an important component in many power management systems and can help to improve system stability and reliability. The supervisor is compact and easy to use, and offers a very flexible set of features and adjustable parameters. It is ideal for applications that require high levels of accuracy, such as mobile phones and medical devices. With its high accuracy and adjustable reset time, the TPS3823-25DBVT is a great choice for a wide range of power management and monitoring applications.

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