UCC2919PWG4

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UCC2919PWG4 Application Field and Working Principle

UCC2919PWG4 is a Hot Swap controller from Texas Instruments. It is designed for applications that require inrush current limiting and hot swap control, such as in automotive, communications and industrial applications. It is designed to provide a high-performance, cost-effective solution that supports the protection of input sources from over-current conditions and the safe swapping of load boards in the event of an over-current fault.

Features of UCC2919PWG4 Hot Swap Controller

The UCC2919PWG4 provides a wide range of features to its users. These features include:

• High-performance, cost-effective hot swap controller
• On-chip protection circuitry allows for secure board migration
• Programmable current limit protection range and ramp-rate
• User-programmable overvoltage protection threshold
• Protection delay control to prevent false tripping due to dynamic inrush of currents
• Thermal shutdown protection to protect internal components
• Fault latch and fault signalling for fault detection and diagnostic purposes
• Open-drain and open-collector outputs for power control and fault signals

Applications of UCC2919PWG4 Hot Swap Controller

The UCC2919PWG4 hot swap controller is a cost-effective and reliable solution for hot swap applications. It has some features that make it suitable for a wide range of applications. These include:

• Automotive applications
• Communication systems
• Industrial equipment
• Power distribution systems

Working Principle of UCC2919PWG4 Hot Swap Controller

UCC2919PWG4 is designed to protect the source from over-current conditions and to safely swap in a load board in the event of an over-current fault. It does so by continuously monitoring the input voltage and current in order to detect any sudden changes and to activate its protection circuitry. In case of an over-current fault, the UCC2919PWG4 will activate the fault latch and open the power control FET(s), this will prevent the current from further overloading the source and will isolate any further power to the load.

The UCC2919PWG4 provides overvoltage protection and monitoring, it will shut down the power when the input voltage reaches a user-programmable threshold. It also includes thermal shutdown protection that will activate when the die temperature exceeds a given threshold. It also has a programmable current limit protection range and ramp rate that can be configured for different applications.

Conclusion

UCC2919PWG4 is a high-performance, cost-effective hot swap controller from Texas Instruments. It has various features that make it suitable for automotive, communication, industrial and other power distribution applications. The UCC2919PWG4 has various protection features such as over-current limiting and over-voltage monitoring, as well as thermal shutdown protection. These features ensure safe and secure board migration in the event of an over-current fault.

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