TPS3824-33DBVRG4

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Power management integrated circuits (PMICs) are used to distribute and manage power across a wide range of electrical appliances and devices. The TPS3824-33DBVRG4 is a type of PMIC that is designed to supervise and control on-board voltage levels. It is part of the TVS38xx series of devices developed by Texas Instruments. This particular device is classified as a PMIC supervisor, and it controls the power supply of application boards.

Applications and Features

The TPS3824-33DBVRG4 is ideal for a number of applications, such as distributing power to microcontrollers, microprocessors, FPGAs, and ASICs. It can also be used to monitor, detect, and suppress overvoltage conditions on power rails. This device is especially useful in automotive applications, as it supports input ranges from 3.3V to 32V.
The device comes with several features, including an active low power-on reset signal, a watchdog timer, an adjustable reset timer, an enable input, and a power-good output. It also has an adjustable trip point voltage and an output voltage of 3.3V or 3.6V.

Working Principle

The TPS3824-33DBVRG4 works by monitoring the output from the on-board voltage regulator and comparing it to a predetermined trip point. If the output voltage drops below the preset trip point, the device will issue an active low reset signal. This resets the system, allowing power to be re-applied so the voltage can be brought back to the desired level. The watchdog timer prevents the device from resetting too often by ensuring the output voltage has adequate time to reach the desired level. If the reset signal persists below the predetermined voltage, the watchdog timer will expire and the device will reset again. The adjustable reset timer also allows the user to set the exact amount of time needed to reset the device.

Conclusion

The TPS3824-33DBVRG4 is a valuable device for dealing with overvoltage conditions in a wide range of electronic applications. It is classified as a PMIC supervisor, and it can be used to measure and regulate the output voltage of power rails. This device is especially useful in automotive applications due to its wide input range. It is also featured with a watchdog timer, adjustable trip point voltage, and adjustable reset timer. With these features, the TPS3824-33DBVRG4 offers maximum protection and control for on-board voltage levels.

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