The TPS3831G18DQNR is a high-accuracy, ultra-low-power, voltage supervisor from Texas Instruments, designed to monitor system voltages and assert a reset signal whenever the monitored voltage drops below a predefined threshold. This device is an essential component for ensuring reliable operation in microprocessor and microcontroller-based systems, where it helps to protect against data corruption caused by low voltage conditions.

Key Features

• High Accuracy: The TPS3831G18DQNR offers a high threshold accuracy of ±1%, ensuring precise monitoring and control of the system voltage.
• Ultra-Low Power Consumption: With a typical supply current of only 150 nA, this device is ideal for battery-powered and portable applications where power efficiency is critical.
• Programmable Reset Delay Time: The reset output delay time can be programmed via an external capacitor, allowing designers to customize the reset timing to suit specific system requirements.
• Manual Reset Input: A manual reset input provides a way to trigger a system reset externally, enhancing system control and diagnostic capabilities.
• Wide Operating Voltage Range: The device supports a wide voltage range from 1.1V to 5.5V, accommodating a variety of power rails and battery chemistries.
• Low Threshold Voltage Options: The TPS3831 series offers multiple threshold voltage options, with the TPS3831G18DQNR specifically featuring a fixed sense threshold voltage of 1.8V.
• Small Package Size: Available in a tiny 1.5mm x 1.5mm 6-pin X2SON package, the TPS3831G18DQNR is suitable for space-constrained applications.

Applications

The TPS3831G18DQNR is versatile and can be used in a wide range of applications, including:

• Portable and battery-powered devices
• Microprocessor/microcontroller systems
• Industrial equipment
• Medical devices
• Automotive systems
• Networking and telecommunications

With its combination of features, the TPS3831G18DQNR ensures system stability and integrity by providing a reliable reset mechanism during undervoltage events. Its ultra-low power consumption and high accuracy make it an excellent choice for sophisticated electronic systems requiring dependable voltage monitoring.