TPS24712DGS

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Hot swap controllers are components that provide circuit protection against costly unintended in-rush currents during power-up and power-down events, such as when board components fail or need to be replaced. In many applications, such as digital systems and industrial systems, a safe power-down is critical. The TPS24712DGS Hot Swap Controller from Texas Instruments is an integrated IC designed to provide stable power sequencing, hot swap, and protection against inrush currents in these applications.

The TPS24712DGS is designed specifically for systems that require repetitive power cycling as well as for systems that require one time configuration for updating such as PCIe/SATA applications. The device incorporates digital-controlled power management pins that provide superior system control plus a digital output pin that can directly trigger external controllers when power is present. With the integration of its advanced circuitry and the capability to interface with external controllers, the TPS24712DGS is well suited for a wide variety of industrial and enterprise applications.

The TPS24712DGS is a hot swap IC that is designed to protect against unintended in-rush currents when boards with different voltages are plugged together. The device contains a variable high-side MOSFET and a variable low-side MOSFET that sense the voltage and current levels to maintain an appropriate power-up and power-down sequence. The MOSFETs also prevent the system from experiencing a fault line current spike when the voltage ramps up or down. The device also contains circuitry that can detect if the hot swap device is operating outside of a user-defined temperature range, if the MOSFETs have a failure, or if the voltage is over or under-voltage.

The TPS24712DGS has a two-wire interface that allows users to configure and monitor the device parameters without any external processors or microprocessors. This feature helps reduce the design time and cost associated with hot swapping. The device also includes an analog front-end that includes an inductor, a standard bypass capacitor, and a current-sense resistor that helps to sense the current flowing through the hot-swap device.

The TPS24712DGS has several application areas including industrial systems and server system boards that use PCIe and SATA for storage. It is a low-power device operating at up to 1.6A and designed for memory and processor protection. Additionally, this device provides extended device protection for applications where high-side MOSFETs and low-side MOSFETs are needed to protect against in-rush current. It also supports different hot-swap configurations to meet the needs of various applications.

The TPS24712DGS includes several safety and protection features including thermal shutdown protection, over-voltage protection, and over-current protection. Additionally, it integrates with external controllers such as the I2C bus and can be used to monitor system health and provide additional power to devices when power is lost. The device also includes an adjustable slew rate and adjustable turn-on voltage that provide the flexibility to ensure optimum operation under varying supply conditions.

The TPS24712DGS is a highly integrated hot-swap controller designed to provide robust power sequencing and protection against in-rush current for industrial and enterprise system applications. By integrating advanced circuits and an interface with external controllers, the device can support a wide variety of applications that require a safe and reliable power-up and power-down sequence. The device also offers protection against voltage and current fault conditions, thermal protection, and comprehensive safety features.

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