UCC3913D

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UCC3913D is a compact, high-efficiency Hot Swap controller manufactured by Texas Instruments. It is designed to regulate the power supply of large electronic loads. Through the use of accurate current sensing, the UCC3913D enables robust and reliable hot swapping applications and prevents system shutdown due to over-current conditions.

UCC3913D is the ideal device for hot swap applications. It is designed to operate in environments where sudden current spikes, due to capacitive loading or dynamic power supply conditions, are encountered and require protection. It monitors the supply current and can control the on/off state of an external MOSFET or external P-channel MOSFET switch, ensuring a very low voltage drop, far below the traditional hot swap controllers. The UCC3913D also has an adjustable current limit setpoint, enabling users to effectively limit the amount of inrush current.

The working principle of the UCC3913D is based on the integration of circuital elements to respond to a predetermined current level and to switch on or off a power MOSFET. The device combines a sense amplifier, an operational amplifier, a logic circuit and a non-inverting buffer, as well as an auxiliary power source. The combination of these elements is what allows the device to control the power MOSFET switch.

The UCC3913D is designed to handle a variety of applications, including maximum load current sensing, load current feedback control, low-voltage start-up, and normal cycle turn-on and turn-off. In addition, the UCC3913D is also suitable for applications where high temperature operating conditions may be encountered. This includes applications such as automotive, computers, and industrial systems, as well as any other application where a reliable and efficient hot swap controller is required.

For automotive applications, the UCC3913D offers a range of advanced protection features. This includes undervoltage and overload protection, as well as over-temperature protection. To ensure safe operation in high temperature environments, it can even be designed with an emission controlled system. In addition, the UCC3913D is also designed to protect against fault conditions such as current overloads, incorrect wiring configurations, and reverse supply currents.

The UCC3913D is particularly appealing to the industrial sector. It offers high efficiency, low quiescent current, and fast response time for controlling large currents. With its advanced high current capacity and numerous protection features, the UCC3913D promises reliable and robust power supply for industrial hot swapping applications.

In addition to its industrial applications, the UCC3913D can also be used for consumer hot swap applications. In consumer hot swapping applications, such as mobile phones and tablets, the UCC3913D can offer protection against transient voltages and current overloads. This helps prevent damage to the device itself, and to the system at large.

The UCC3913D is an ideal choice for power management applications which require reliable and robust operation in harsh conditions. With its current monitoring, adjustable current limit setpoint, and numerous protection features, it is the ideal device for hot swapping applications. The UCC3913D can be used in a variety of fields, including automotive, computers, and industrial applications.

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