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2U3820-50QDBVRG4Q1

2U3820-50QDBVRG4Q1 Description

The 2U3820-50QDBVRG4Q1 is a single-channel voltage supervisor IC designed by Texas Instruments, specifically tailored for automotive applications. This device is housed in a compact SOT23-5 package, making it suitable for space-constrained designs. It is designed to monitor a single voltage supply and provide a reset signal if the voltage falls below a specified threshold of 4.55V. The reset signal is active low, ensuring compatibility with a wide range of microcontrollers and processors. The reset timeout is guaranteed to be a minimum of 15ms, providing sufficient time for the system to stabilize after a power-up or brown-out event.

2U3820-50QDBVRG4Q1 Features

• Single Voltage Monitoring: The 2U3820-50QDBVRG4Q1 is designed to monitor a single voltage supply, making it ideal for applications where simplicity and cost-effectiveness are paramount.
• Automotive Grade: Certified for automotive applications, this IC is built to withstand the rigorous environmental conditions commonly found in automotive electronics.
• Surface Mount Technology: The surface mount package allows for easy integration into modern PCB designs, facilitating automated assembly processes.
• Low Voltage Threshold: With a voltage threshold of 4.55V, this supervisor is well-suited for systems operating at or near this voltage level, ensuring reliable monitoring and reset functionality.
• Reset Timeout: A minimum reset timeout of 15ms ensures that the system has adequate time to initialize and stabilize after a power event.
• Moisture Sensitivity Level 1: This IC is classified as MSL 1, meaning it is not sensitive to moisture and can be stored and handled without special precautions.
• Compliance and Standards: The 2U3820-50QDBVRG4Q1 meets REACH and RoHS3 compliance standards, ensuring it is environmentally friendly and suitable for use in a wide range of applications.

2U3820-50QDBVRG4Q1 Applications

The 2U3820-50QDBVRG4Q1 is particularly well-suited for automotive applications where reliable voltage monitoring and system reset are critical. Some specific use cases include:

• Automotive Electronics: Ideal for monitoring the power supply in automotive control units, ensuring reliable operation and preventing system failures due to voltage fluctuations.
• Embedded Systems: Suitable for embedded systems where a single voltage supply needs to be monitored, such as in microcontroller-based designs.
• Power Management: Can be used in power management circuits to ensure that the system remains stable and functional, even in the event of power supply anomalies.
• Industrial Control: Applicable in industrial control systems where reliable voltage monitoring and reset functionality are essential for maintaining system integrity.

Conclusion of 2U3820-50QDBVRG4Q1

The 2U3820-50QDBVRG4Q1 from Texas Instruments is a robust and reliable voltage supervisor IC designed for automotive applications. Its compact SOT23-5 package, single voltage monitoring capability, and automotive-grade certification make it an ideal choice for a variety of applications where space and reliability are critical. The 15ms minimum reset timeout ensures that the system has sufficient time to stabilize, while the low voltage threshold of 4.55V provides precise monitoring. Compliance with REACH and RoHS3 standards further enhances its suitability for modern, environmentally conscious designs. Despite its obsolete status, the 2U3820-50QDBVRG4Q1 remains a viable option for applications requiring a reliable and cost-effective voltage supervisor.