Product Overview: TPS3809I50DBZR by Texas Instruments

The TPS3809I50DBZR is a state-of-the-art supervisory circuit developed by Texas Instruments, designed to provide precise voltage monitoring and reset functionality for microprocessors (µPs), microcontrollers (MCUs), and other digital systems. This compact and efficient device is a crucial component for ensuring system reliability and stability in a wide range of electronic applications.

Key Features

• Voltage Threshold: The device monitors a nominal threshold voltage of 5.0V, making it suitable for a variety of standard digital systems.
• Low Quiescent Current: With a typical quiescent current of only 9 µA, the TPS3809I50DBZR is highly energy-efficient, which is ideal for battery-powered and low-power applications.
• Manual Reset Input: It features a manual reset input that allows for an external override, providing additional control to the system designers.
• Reset Time Delay: The device offers a programmable time delay for the reset signal, ensuring flexibility and adaptability for different system requirements.
• High Accuracy: It boasts a high threshold accuracy of ±2%, which ensures reliable monitoring and reset activation.
• Temperature Range: The TPS3809I50DBZR operates over a wide temperature range from –40°C to +85°C, accommodating various environmental conditions.

Package and Availability

The device comes in a small, surface-mount, SOT-23 package, which is highly space-efficient and suitable for compact PCB layouts. Its part number suffix 'DBZR' indicates the package type and reel size for ordering. Texas Instruments provides this supervisory circuit in different packaging options to meet diverse assembly requirements.

Applications

Ideal for a broad spectrum of applications, the TPS3809I50DBZR is commonly used in:

• Portable and battery-powered electronics
• Computers and servers
• Industrial control systems
• Communication equipment
• Automotive systems

With its robust design and versatile features, the TPS3809I50DBZR from Texas Instruments is an essential component for designers looking to enhance system integrity and prevent data loss due to power fluctuations or unexpected system failures.