Texas Instruments

UCC3921N  

Hot Swap Controllers

UCC3921N Description

The UCC3921N is a general-purpose hot swap controller designed by Texas Instruments, a leading manufacturer in the electronics industry. This device is engineered to manage the safe insertion and removal of circuit boards in live systems, ensuring reliable operation and minimizing downtime. The UCC3921N operates within a temperature range of 0°C to 70°C, making it suitable for a variety of environments. It features a through-hole mounting type, which is ideal for applications requiring robust mechanical stability and ease of installation.

The UCC3921N is housed in a tube package and is available in an 8-DIP format, offering a compact and efficient solution for power management. Despite its small size, it delivers a supply current of just 1 mA, ensuring minimal power consumption. This hot swap controller is equipped with a comprehensive set of programmable features, including auto retry, circuit breaker, current limit, fault timeout, and latched fault, which provide enhanced control and protection for the system.

UCC3921N Features

The UCC3921N stands out due to its unique set of features that enhance its performance and reliability:

• UVLO (Under-Voltage Lockout): This feature ensures that the controller remains inactive when the input voltage falls below a certain threshold, preventing damage to the system during low-voltage conditions.
• Programmable Features: The UCC3921N offers a range of programmable features such as auto retry, circuit breaker, current limit, fault timeout, and latched fault. These features provide flexibility in configuring the controller to meet specific application requirements and enhance system protection.
• Low Supply Current: With a supply current of just 1 mA, the UCC3921N is highly efficient and suitable for applications where power consumption is a critical factor.
• Through-Hole Mounting: The through-hole mounting type ensures mechanical stability and ease of installation, making it ideal for a wide range of applications.
• Compliance and Safety: The UCC3921N is REACH unaffected and ROHS3 compliant, ensuring that it meets the highest standards of environmental and safety regulations.

UCC3921N Applications

The UCC3921N is a versatile hot swap controller suitable for a variety of applications, including:

• Data Centers: Ensuring reliable operation and minimizing downtime during the insertion and removal of circuit boards in live systems.
• Telecommunications: Providing robust power management solutions for telecommunication equipment, where reliability and uptime are critical.
• Industrial Automation: Enhancing the safety and efficiency of industrial systems by managing the hot swapping of modules without interrupting the system's operation.
• General Purpose Systems: Ideal for any application requiring a reliable and efficient hot swap controller, the UCC3921N offers a comprehensive solution for power management.

Conclusion of UCC3921N

The UCC3921N is a robust and efficient hot swap controller designed to meet the demands of modern power management systems. Its comprehensive set of features, including UVLO, programmable features, and low supply current, make it a versatile solution for a wide range of applications. The through-hole mounting type and compliance with environmental and safety regulations further enhance its appeal. Although the UCC3921N is now considered obsolete, it remains a reliable choice for applications where its unique features and performance benefits are required.

UCC3921N Documents

Download datasheets and manufacturer documentation for UCC3921N

Datasheets :

UCC1921/2921/3921