TPS3850H18DRCT

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The TPS3850H18DRCT is a precision voltage supervisor with an open-drain active-low RESET. The device is intended for supervisory applications, providing reset signals when the battery voltage falls below the preset threshold. The TPS3850H18DRCT is designed with a 0.9V typical threshold voltage that is capable using a 1.8V to 5.5V power supply and is used in battery applications to protect the circuit from reset when the battery voltage decreases below its specified threshold. In addition to resetting the circuit, the TPS3850H18DRCT monitors an internal reference voltage which can be used to set the reset threshold accurately.

Application Field

The TPS3850H18DRCT has a wide range of applications, but is most often used to monitor the voltage of a battery or external power source. In such applications, it is important that the voltage is never allowed to fall below a threshold, as this may lead to interruptions in the circuitry and malfunctions. The TPS3850H18DRCT is designed to detect a battery voltage below the preset threshold and generate a reset signal which will protect the circuitry from further drop. This allows the system to remain in a safe operating state without the risk of a hard system reset, which may lead to data loss and/or other anomalies.

The TPS3850H18DRCT is also used to monitor and control voltage levels in microcontrollers and other digital devices. It can be used to generate an active-low reset signal when the voltage drops below a certain level. This reset signal can then be used to initiate certain system functions or reset a digital device. The reset signal can also be used to reset a system to a known state after a power-on reset, or when a voltage is greater than a set threshold for a given time period.

The ability to accurately monitor and control voltage levels is important for many applications. The TPS3850H18DRCT provides a precise voltage monitoring system that can be used to ensure that the voltage levels in a device or system remain within an acceptable range.

Working Principle

The TPS3850H18DRCT is a voltage supervisor featuring active-low open-drain reset. It works by monitoring the voltage of an external power source and triggering an active-low reset signal when the voltage drops below a preset threshold. The threshold can be accurately adjusted using the internal reference voltage, which provides a stable controlling signal.

On power up, the TPS3850H18DRCT begins monitoring the voltage of the external power source. When the voltage drops below the preset threshold, the device triggers an active-low reset signal. The active-low reset signal can be used to reset digital devices or initiate certain system functions.

Once the voltage reaches the preset threshold, the TPS3850H18DRCT stops running on internal power and begins monitoring the voltage again. If the voltage continues to stay above the threshold, the device remains in its reset state until the voltage drops below the threshold again or the power is turned off.

The TPS3850H18DRCT is designed to ensure a stable power supply, protect key components from unexpected power abnormalities, and maintain a complete set of control functions in even the most demanding applications.

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