Texas Instruments

UCC3921DTR

UCC3921DTR Description

The UCC3921DTR is a high-performance Hot Swap Controller designed for general-purpose applications, manufactured by Texas Instruments. This device is engineered to manage the insertion and removal of circuit boards in live systems, ensuring reliable and safe operation. The UCC3921DTR operates within a temperature range of 0°C to 70°C, making it suitable for environments with moderate temperature variations. It features a surface-mount package, specifically in the 8SOIC format, which is ideal for compact and space-efficient designs.

UCC3921DTR Features

The UCC3921DTR offers a comprehensive set of features that enhance its functionality and reliability. Key features include:

• UVLO (Under-Voltage Lockout): Ensures the controller remains inactive when the input voltage is below a safe operating threshold, preventing potential damage to the system.
• Programmable Features: The UCC3921DTR provides advanced programmable options such as Auto Retry, Circuit Breaker, Current Limit, Fault Timeout, and Latched Fault. These features allow for fine-tuning the controller's behavior to match specific application requirements.
• Low Supply Current: With a supply current of only 1 mA, the UCC3921DTR is highly efficient and minimizes power consumption, making it suitable for energy-sensitive applications.
• Single Channel: The UCC3921DTR is designed for single-channel operation, simplifying the control mechanism and reducing complexity in system design.
• Compliance and Standards: The device is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. It also carries the ECCN classification of EAR99, indicating its compliance with export regulations.

UCC3921DTR Applications

The UCC3921DTR is versatile and be can applied in a wide range of general-purpose applications where hot swapping is required. Some specific use cases include:

• Data Centers: Managing the insertion and removal of server blades and storage devices without interrupting system operation.
• Telecommunications: Enabling hot swapping of line cards and other modules in telecom equipment to ensure continuous service.
• Industrial Automation: Facilitating the replacement of control modules and sensors in industrial systems without downtime.
• Medical Equipment: Allowing for the safe and efficient replacement of diagnostic and monitoring modules in medical devices.

Conclusion of UCC3921DTR

The UCC3921DTR from Texas Instruments is a robust and reliable Hot Swap Controller that offers a blend of advanced features and compliance with industry standards. Its low supply current and programmable features make it highly efficient and adaptable to various applications. The UCC3921DTR is an ideal choice for designers looking to implement hot swap functionality in their systems, ensuring safe and reliable operation in a wide range of general-purpose applications.