TPS3305-33DGNR Integrated Circuits (ICs)

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The TPS3305-33DGNR is an integrated circuit (IC) that serves as part of a power management system. It is specifically designed to detect voltage levels, output reset signals when necessary, and then restore power as required. The TPS3305-33DGNR can be classified as a PMIC (Power Management Integrated Circuit) and is also a part of the broader family of supervisory circuits that manage power in systems of all sizes.

For a wide range of system designs, the TPS3305-33DGNR is a crucial component. It is most commonly used in circuit designs related to battery-powered embedded systems, as well as for systems involving communication, automotive, and computer applications. Its wide range of application fields also includes utilization as a reset supervisor for processor-based systems such as PCs and Mac computers.

The TPS3305-33DGNR is a single-channel power supply supervisor, consisting of a voltage detector (V DET ), a reset timer (R ST ), a reference voltage generator, and signal conditioning circuitry (SCC). This IC monitors the voltage from 3.0V to 20.5V and detects when the voltage levels exceed the "trip point" which is adjustable from 1.5V to 5.25V. When the voltage goes above the trip point, the V DET signal will activate and will indicate a detected high voltage. The R ST timer then reduces the V DET signal and outputs a reset signal (‘RESET’) once the voltage falls below the trip point. After the reset signal goes low, the TPS3305-33DGNR will output an active-low reset signal (‘R’) to ensure that the system remains in the correct reset condition until the power supply is stable.

When the voltage is lower than the trip point, the V DET signal will indicate a detected low voltage. For this condition, the SCC circuitry is used to slow down the response time of the reset signal to prevent unnecessary resetting. Furthermore, if the voltage levels dip below the reference voltage, the V DET signal will be activated and a reset pulse will be generated as well.

The TPS3305-33DGNR is a highly efficient solution for voltage monitoring and reset signal generation in digital circuits. Its design allows for adjustable trip point voltage levels and slow reset signal response time on low voltage conditions. Its wide range of applications makes it an ideal option for embedded power designs, processor-based systems, as well as communication and automotive applications.

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