LM5071MT-80

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The LM5071MT-80 is a popular PMIC, or Power Management Interface Controller. It is specifically built for power over Ethernet (PoE) applications. This versatile device offers adjustable current limits for both PDs (power distributors) and PSEs (power sourcing equipment) in PoE systems. It is designed to minimize the total PoE system cost as well as increase system performance and reliability.

The LM5071MT-80 features an adjustable overcurrent limit and a programmable fault protection circuit. This allows the device to be used in a variety of applications and system configurations. The LM5071MT-80 is capable of driving a single PoE port at up to 80 watts, and multiple ports can be driven with parallel connections.

In addition to its adjustable current limits, the LM5071MT-80 also provides an input enabling/disabling feature. This feature allows the user to selectively enable/disable each port for optimized power management. Moreover, the device can be programmed to reduce power consumption by shutting down when it is not in use, thus reducing system energy costs.

The LM5071MT-80 is an ideal solution for PoE applications that require the highest levels of reliability and system performance. It is versatile and flexible, and allows the user to customize the system power management to their particular requirements. The device also features several protection functions, including overvoltage, overcurrent, and thermal protection, which helps ensure system reliability and integrity.

The working principle of the LM5071MT-80 is simple and straightforward. Once the current limit is set, the device will monitor and regulate the incoming PoE voltage and current. If the voltage or current exceeds the value set by the user, the device will shut off to prevent damage to the system or downstream components. Likewise, when the voltage and current drop below the preset limits, the device will automatically resume operation. Furthermore, the device can be programmed to shut down the port when it is not in use to conserve power.

The LM5071MT-80 is a highly efficient device with its low quiescent current and adjustable current limiting feature. It is ideal for applications where power efficiency and reliability are paramount. Moreover, the device allows for flexible and cost effective solutions for PoE system implementations. With its versatile and reliable solutions, the LM5071MT-80 is an essential component for PoE systems.

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