Texas Instruments

TPS3839K50DQNR

TPS3839K50DQNR Description

The TPS3839K50DQNR is a single-channel voltage supervisor IC designed by Texas Instruments. This device is engineered to monitor a single voltage rail and provide reliable reset functionality when the monitored voltage falls below a predefined threshold. The TPS3839K50DQNR features a voltage threshold of 4.38V, ensuring precise monitoring and control of power supply levels. It offers a reset timeout of at least 120ms, providing ample time for system recovery and stability. The IC is packaged in a 4x2SON format, suitable for surface mount applications, and is available in tape and reel packaging for convenient handling and integration into various electronic systems.

TPS3839K50DQNR Features

• Voltage Monitoring: The TPS3839K50DQNR is designed to monitor a single voltage rail with a threshold of 4.38V, ensuring that the system remains stable and functional within specified voltage ranges.
• Reset Functionality: The IC provides an active-low reset output, which is triggered when the monitored voltage drops below the threshold. This feature ensures that the system can safely reset and recover from power supply issues.
• Reset Timeout: With a minimum reset timeout of 120ms, the TPS3839K50DQNR allows sufficient time for the system to stabilize after a reset event, preventing premature reactivation and potential instability.
• Surface Mount Compatibility: The TPS3839K50DQNR is designed for surface mount applications, making it ideal for modern, compact electronic designs where space is a critical consideration.
• Moisture Sensitivity Level: The IC has a moisture sensitivity level (MSL) of 1 (unlimited), indicating that it is highly resistant to moisture and suitable for a wide range of environmental conditions.
• Compliance and Standards: The TPS3839K50DQNR is REACH unaffected and ROHS3 compliant, ensuring that it meets the latest environmental and safety standards. It is also classified under ECCN EAR99 and HTSUS 8542.39.0001, facilitating compliance with international trade regulations.

TPS3839K50DQNR Applications

The TPS3839K50DQNR is ideal for a variety of applications where reliable voltage monitoring and reset functionality are critical. Some specific use cases include:

• Power Supply Monitoring: In power supply units (PSUs) and other power management systems, the TPS3839K50DQNR ensures that the system remains stable by monitoring the main power rail and triggering a reset if the voltage drops below the threshold.
• Embedded Systems: For embedded systems in industrial, automotive, and consumer electronics, the TPS3839K50DQNR provides a reliable means of monitoring power supply integrity and ensuring system stability during power fluctuations.
• Telecommunications: In telecom equipment, the IC can be used to monitor critical power rails, ensuring that the system remains operational and stable under varying power conditions.
• Consumer Electronics: In devices such as smartphones, tablets, and laptops, the TPS3839K50DQNR can be used to monitor battery voltage and ensure that the system can safely shut down or reset if the voltage falls below a safe level.

Conclusion of TPS3839K50DQNR

The TPS3839K50DQNR from Texas Instruments is a robust and reliable single-channel voltage supervisor IC, offering precise voltage monitoring and reset functionality. Its 4.38V threshold and 120ms minimum reset timeout make it suitable for a wide range of applications where power supply stability is critical. The surface mount compatibility and moisture resistance further enhance its versatility and reliability. With its compliance with REACH and ROHS3 standards, the TPS3839K50DQNR is an excellent choice for modern electronic designs, ensuring both performance and environmental responsibility.