TPS3831G12DQNR

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The TPS3831G12DQNR is an overvoltage supervisor from Texas Instruments (TI). It is a member of the TI Supervisors product family, specifically classified as a PMIC – Supervisors. The TPS3831G12DQNR is a low-voltage and low-power reset supervisor that offers protects sensitive electronic circuits from damage due to power supply transients and other overvoltage events. It features an active power-down input with programmable reset hysteresis, voltage source and sink, and can generate push-pull, open transistor, and direct reset outputs. In addition, the device utilizes standard active-low reset programming pins and programmable delay time.This device is ideal for a wide range of applications such as power supplies, motor control, office equipment, and industrial control. Specifically, it offers a fast response time that protects sensitive components from damage caused by overvoltages. The TPS3831G12DQNR is specifically designed for a droop capacitor return-to-zero protection. Compared to standard reset supervisors, the TPS3831G12DQNR avoids false trips during one-shot resets, while actively protecting against overvoltage transients during power-up, power-down, and system-load changes.The TPS3831G12DQNR utilizes a proprietary technology that enables the device to provide superior power supply transient protection, with positive voltage or current trip and programmable delay. The delay feature eliminates false trips from EMI, regular clock glitches and debouncing, and allows the designer to select the limit at which the device trips. This feature also helps increase system reliability and protect from overvoltage conditions.The TPS3831G12DQNR is designed to be used in any applications needing active overload protection. It also works as an active-low reset supervisor in systems requiring one or more positive or negative output trip levels. The device is specifically ideal for medium- to low-power systems such as computers, telecommunications equipment, consumer electronics and medical devices.The TPS3831G12DQNR works by continuously monitoring the power supply voltage and, when an overvoltage condition is detected, the device generates an active-low reset signal. This signal can be used to reset the system\'s microcontroller or other circuit components, and can also act as a direct reset output. This reset signal is active high, meaning it is active when the voltage is below the trip point. When the trip point is reached, the device turns off the active-low output and resets the system.The device also has an active power-down input, allowing users to initiate an active-low reset output without going through the overvoltage detection process. This feature allows for greater control over the circuit and is useful for debugging and load or temperature testing. In addition, the device can generate both push-pull, open transistor, and direct reset outputs for different overvoltage conditions.Overall, the TPS3831G12DQNR from TI offers superior protection from overvoltage transients, power-up, power-down, and system-load changes. This device is designed to provide fast response time and eliminates false trips, while providing active-low reset outputs that can be used to reset the system. It’s ideal for low- to medium-power systems such as computers, telecommunications equipment, consumer electronics, and medical devices, making it an excellent choice for a variety of applications.

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