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BU4339FVE-TR

BU4339FVE-TR Description

The BU4339FVE-TR is a single-channel supervisor IC designed by ROHM Semiconductor. This device is specifically engineered to monitor voltage levels and ensure system stability in various electronic applications. With a threshold voltage of 3.9V, it provides reliable voltage monitoring to prevent system malfunctions due to power supply issues. The BU4339FVE-TR features an adjustable/selectable reset timeout, offering flexibility in system design. It is packaged in a surface-mount format, making it suitable for compact and high-density PCB layouts. The device is available in a tape and reel package (TR), facilitating automated assembly processes.

BU4339FVE-TR Features

• Voltage Monitoring: Monitors a single voltage rail with a threshold of 3.9V, ensuring reliable system operation by detecting undervoltage conditions.
• Reset Functionality: Features an active-low reset output, providing a clear and reliable signal to reset the system when the monitored voltage falls below the threshold.
• Adjustable Timeout: The reset timeout is adjustable/selectable, allowing designers to tailor the reset duration to their specific application requirements.
• Surface Mount Technology: The surface-mount package type ensures compatibility with modern PCB assembly techniques, enabling high-density designs.
• Compliance and Standards: The BU4339FVE-TR is REACH unaffected and ROHS3 compliant, meeting environmental and safety standards. It also carries an ECCN classification of EAR99, simplifying export compliance.
• Moisture Sensitivity: With a moisture sensitivity level (MSL) of 1 (unlimited), the device is suitable for a wide range of manufacturing environments without the need for special handling procedures.

BU4339FVE-TR Applications

The BU4339FVE-TR is ideal for applications requiring precise voltage monitoring and reliable reset functionality. Its single-channel design makes it particularly suitable for systems with a single critical power supply rail. Key applications include:

• Consumer Electronics: Ensuring stable operation in devices such as smartphones, tablets, and home appliances by monitoring power supply integrity.
• Industrial Control Systems: Providing reliable voltage monitoring in industrial automation equipment, PLCs, and control panels to prevent system failures.
• Telecommunications: Monitoring power supplies in base stations, routers, and other telecom equipment to maintain system reliability.
• Automotive Electronics: Ensuring the stability of electronic control units (ECUs) in vehicles by monitoring power supply levels.

Conclusion of BU4339FVE-TR

The BU4339FVE-TR from ROHM Semiconductor is a robust and reliable supervisor IC designed to meet the demands of modern electronic systems. Its adjustable reset timeout, surface-mount package, and compliance with industry standards make it a versatile and practical choice for a wide range of applications. While it is marked as "Not For New Designs," the BU4339FVE-TR remains a valuable component for existing designs and systems requiring a dependable voltage monitoring solution.