The UCC3921DTRG4 from Texas Instruments is a sophisticated power distribution switch designed to provide a reliable power management solution for a wide range of applications. This integrated circuit is part of the UCC392x family and is particularly suited for systems that require precise control and protection of power distribution.

Key Features

• Programmable Current Limit: The device offers a programmable current limit feature which ensures protection against overcurrent conditions, enhancing the safety and longevity of the system.
• Fast Overcurrent Response: With a rapid response to overcurrent events, the UCC3921DTRG4 helps to prevent damage to the system components by quickly disconnecting the faulty load.
• Under-Voltage Lockout (UVLO): The UVLO feature ensures that the switch remains off when the supply voltage is below a certain threshold, preventing malfunctioning due to insufficient supply voltage.
• Thermal Shutdown: An integrated thermal shutdown function protects the device and the system from overheating, which is critical for maintaining system integrity and performance.
• Auto-Retry or Latch-Off: Users can choose between auto-retry or latch-off modes for the fault response, providing flexibility in the handling of overcurrent and overtemperature conditions.

Applications

The UCC3921DTRG4 is highly versatile and can be used in various applications, including:

• USB hubs and peripherals
• Hot-swap supplies
• Power distribution systems
• Industrial controls
• Intelligent circuit breakers

Package and Availability

This power distribution switch is available in a surface-mount package, making it suitable for compact and high-density circuit designs. The UCC3921DTRG4 is provided in tape and reel packaging, which facilitates efficient handling and placement during the manufacturing process.

As a product of Texas Instruments, a leading semiconductor company, the UCC3921DTRG4 is backed by robust technical support and comprehensive documentation, ensuring that designers can integrate this component into their systems with confidence.