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BU4921F-TR

BU4921F-TR Description

The BU4921F-TR is a single-channel supervisor IC designed by ROHM Semiconductor, a leading manufacturer in the electronics industry. This supervisor IC is engineered to monitor a single voltage source, ensuring reliable system performance and stability. The BU4921F-TR features a voltage threshold of 2.1V, making it ideal for applications requiring precise voltage monitoring. It is available in a 4SOP package and is delivered in a tape and reel format (TR), facilitating efficient surface mount assembly processes.

BU4921F-TR Features

• Voltage Monitoring: The BU4921F-TR is designed to monitor a single voltage source with a threshold of 2.1V, providing accurate and reliable voltage supervision.
• Active High Reset: The reset function of the BU4921F-TR is active high, ensuring that the system can be reset effectively when the monitored voltage falls below the threshold.
• Surface Mount Compatibility: With a surface mount (SMD) mounting type, the BU4921F-TR is suitable for modern PCB assembly processes, offering space-saving and high-density mounting solutions.
• Moisture Sensitivity Level: The BU4921F-TR has a moisture sensitivity level (MSL) of 1, indicating that it is not affected by moisture and can be stored and handled without special precautions.
• Compliance and Standards: The BU4921F-TR is REACH unaffected and ROHS3 compliant, ensuring that it meets the highest environmental and safety standards.
• Packaging and Delivery: The product is delivered in a tape and reel (TR) format, which is ideal for automated assembly lines and ensures consistent and reliable component placement.

BU4921F-TR Applications

The BU4921F-TR is well-suited for a variety of applications where reliable voltage monitoring is crucial. Some specific use cases include:

• Power Supply Monitoring: In power supply units, the BU4921F-TR can monitor the main power rail to ensure it remains within specified limits, preventing system failures due to voltage fluctuations.
• Embedded Systems: For embedded systems in consumer electronics, industrial controls, and automotive applications, the BU4921F-TR provides a compact and efficient solution for voltage supervision.
• Battery Management: In battery-operated devices, the BU4921F-TR can monitor the battery voltage to ensure it remains within safe operating limits, extending battery life and improving system reliability.
• Telecommunications: In telecom equipment, the BU4921F-TR can be used to monitor power supply voltages, ensuring stable operation and preventing downtime due to power issues.

Conclusion of BU4921F-TR

The BU4921F-TR from ROHM Semiconductor is a robust and reliable single-channel supervisor IC that offers precise voltage monitoring and active high reset functionality. Its surface mount compatibility, moisture sensitivity level of 1, and compliance with REACH and ROHS3 standards make it an ideal choice for a wide range of applications. Whether used in power supply monitoring, embedded systems, battery management, or telecommunications, the BU4921F-TR ensures reliable and stable system performance. Its tape and reel packaging further enhances its suitability for modern manufacturing processes, making it a valuable component for electronics engineers and designers.