UCC3913DTR

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The UCC3913DTR is a hot swap controller from Texas Instruments. It is part of a family of hot swap controllers specifically designed to enable safe insertion and removal of high power loads from a system or from the line power. The UCC3913DTR provides a system host with a range of fault reporting mechanisms, such as over voltage, short circuit, and current limiting. This makes the hot swap controller an effective solution to provide system-level protection while expanding system functionality. The UCC3913DTR is compliant with the UL61800-5-2 standard and has an operating temperature range of -40°C to +85°C.

Application Field of UCC3913DTR

A hot swap controller is a device that is designed to enable the insertion and removal of high-power loads from a system while ensuring system-level protection. The UCC3913DTR hot swap controller from Texas Instruments is ideal for a range of applications, including, but not limited to, industrial systems, servers, storage and networking, as well as distributed power architectures. It can also be used for motor controls and networking applications.

The UCC3913DTR is suitable for power over Ethernet (PoE) designs and applications, in which case the hot swap controller must support compliant operation under the IEEE802.3af standard. It also supports 12V, 24V, and 48V loads. This makes it suitable for a wide range of applications, such as those found in automotive, computing, communication, and medical systems.

Working Principle of UCC3913DTR

The UCC3913DTR is designed to provide system-level protection while enabling safe insertion and removal of high-power loads. It works by monitoring the current load and voltage levels at the connection points of the system, and will respond with signals to the host system if any of these values exceed pre-determined thresholds. The UCC3913DTR features four inputs - high voltage monitoring (HV), low voltage monitoring (LV), over-current monitoring (OC) and short circuit monitoring (SS) - for comprehensive system protection. The HV and LV inputs monitor voltage levels, while the OC and SS inputs monitor current levels.

When the UCC3913DTR detects an over-current or short-circuit situation, it will immediately switch off the power to the load. This avoids damage to the load or any other system components as a result of a sudden failure of the power supply. The UCC3913DTR also features an integrated timer circuit to delay the power-up timing of the load, ensuring that any inrush current is limited. Furthermore, the timer circuit also enables the controller to maintain a low standby current when the system is idle.

Conclusion

The UCC3913DTR is a hot swap controller from Texas Instruments. It is designed to enable safe insertion and removal of high-power loads from a system, while providing system-level protection. The UCC3913DTR supports a range of applications, including PoE designs and automotive applications. It monitors the current and voltage levels of the system and responds with signals to the host system if any of these data exceed pre-determined thresholds. The UCC3913DTR features an integrated timer circuit to delay power-up timing and to maintain a low standby current when the system is idle. This makes the UCC3913DTR an effective solution for system-level protection while expanding system functionality.

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