LM5072MH-50/NOPB

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Power over Ethernet (PoE) controllers are necessary for networking devices and systems in order to sustain long-term operations without experiencing downtime or energy losses. The LM5072MH-50/NOPB is a popular application field power management integrated circuit (PMIC) from Texas Instruments that is specifically designed for PoE applications.

The LM5072MH-50/NOPB is powered by a low-voltage direct current (DC) supply and integrates multiple control and protection features including low-side PWM for current regulation, on-chip diagnostic alerts and switching regulators. Furthermore, it is among the few available PMICs that are compliant with the IEEE 802.3af Power Source Equipment (PSE) Class 1 specifications.

The LM5072MH-50/NOPB has a programmable power range of up to 25W, making it ideal for a wide range of networking applications. Its high-frequency power conversion technology allows it to operate at frequencies ranging between 375kHz and 400kHz, helping to ensure that noise bars are optimized and system losses are minimized.

The LM5072MH-50/NOPB is particularly useful in PoE systems due its wide input voltage range that can range from 9V to 15V and features adjustable current limit settings. The adjustable control limits make the LM5072MH-50/NOPB able to safely and quickly respond to changing input power demands and provide robust protection against electrical surges.

The heart of the LM5072MH-50/NOPB is its high-frequency current-mode control loop that operates with a single-ended topology. This topology is ideal for PoE applications as it ensures that resources are not wasted converting energy from AC to DC and back again. It also helps simplify the system’s power control loop design which is beneficial for the overall system stability.

The LM5072MH-50/NOPB features a wide range of features and protection features, including adjustable output ripple, remote impedance sensing, over-current protection and overload protection. Furthermore, it achieves high efficiency thanks to its low-dropout (LDO) regulator as well as its adjustable current-limit settings that allow for a wide range of variable output power.

The LM5072MH-50/NOPB is compatible with almost all standard PoE connectors, making it ideal for industrial, network, and other PoE applications. It is also capable of dissipating up to 4W of total system power in a compact, ruggedized, and light package and is highly reliable in temperature extremes.

The LM5072MH-50/NOPB is one of the few PMICs that are specifically designed for PoE applications and thus offers a reliable solution for any system. Its high-frequency power conversion technology allows it to operate at frequencies ranging between 375kHz and 400kHz ensuring the system is optimized and reliable in temperatures extremes and protecting it from electrical surges. Furthermore, its programmable power range of up to 25W, wide input voltage range and adjustable current limit settings make it highly suitable for a wide range of PoE applications.

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