TPS2359RHHTG4

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Power Management Integrated Circuit (PMIC) is an important part of modern computing systems, responsible for the power management and distribution of the system. Hot Swap Controllers are one type of PMIC, used to control the power supply for high-power devices and stop them from drawing too much power of the PC power supply. The TPS2359RHHTG4 is a Hot Swap Controller from Texas Instruments and is used to protect hot-swap control in data communication and telecom applications. The device has extensive protection, easy-to-use features, and enable/disable pins to control hot swap insertion and removal.

The TPS2359RHHTG4 is a single-channel hot swap controller with an adjustable current limit. It provides two enable pins, two sense pins and two switching pins, allowing for two hot swap channels. The device also features an overtemperature protection (OTP) and an output overvoltage protection (OVP) with a curved protection characteristics that prevents damage on the input power supply due to an over voltage. The OTP feature provides a detection of an environmental temperature and shutdowns the output in case of an over-temperature, this includes during hot swapping.

The TPS2359RHHTG4 hot swap controller is used in various applications. The device is used typically in telecom and data communications systems to protect equipment from overcurrent, under voltage, and output overvoltage conditions. It is ideal for PoE/PoE+ systems, as it supports current-limited reversing supplies, ensuring safe power delivery and shutting down after a predetermined time period against overloads. It is also used in networking and computing applications, like 10 Gb/S switches, where it provides smooth power inrush current limiting and ensures that the system power supply is isolated from overloads or under-voltage conditions.

The TPS2359RHHTG4 works in two modes, normal mode and load hibernate mode. In normal mode, the device follows the GPIO input signal to enable/disable hot swap control. When the GPIO pin is driven to logic high, the device is enabled and supplies power to both VDDs. It monitors the voltage on the VP

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