NCP1081DER2G Integrated Circuits (ICs)

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NCP1081DER2G is a system power management integrated circuit (PMIC) designed primarily for mid- to high-power-range applications such as ultra-high-speed Ethernet routers, switches, set-top boxes, digital TVs, and HDTV-based home entertainment systems. It is an efficient, cost-effective, and highly reliable device that allows designers to reduce their power consumption and total system cost. The NCP1081DER2G is part of the NCP1081 product family, which is a power-over-Ethernet (PoE) controller and includes a wide variety of features and functions to enable Ethernet data and power access over existing cables.

The main purpose of the NCP1081DER2G is to enable the transmission of power and data over an existing Ethernet network. It is capable of powering up to 8 PDs (powered devices) with a total power budget of up to 12.95W. The NCP1081DER2G is designed to comply with the IEEE 802.3af and IEEE 802.3at standards, providing interoperability among PDs, power sources equipment (PSEs), and mid-span PSEs. It is also compliant with IEEE 802.1Q, allowing it to be used in VLAN networks. The device supports a maximum of eight pre-defined Class-of-Service (CoSs) and has built-in security measures to protect against power injection, overvoltage, and overcurrent.

The NCP1081DER2G features a power output load switch, a voltage regulator, a thermal protection circuit, and an adjustable current limit block. The device provides a bidirectional current limit of up to 6.6A, depending on the variant. The voltage regulator can supply up to 1.2V and is designed specifically to protect the Ethernet cables from overcurrent and overtemperature conditions. It has both over- and undervoltage lockout protection and provides controlled startup and shutdown of the PDs. Additionally, the device includes a fault output and a PSE detect output in order to maintain a secure and reliable power source.

The NCP1081DER2G has a wide range of applications, including Ethernet routers and switches, set-top boxes, digital TVs, home entertainment systems, and other high-power data and network applications. It is an ideal solution for providing reliable and cost-effective power and data distribution over an existing Ethernet network. As the device is IEEE 802.3 compliant, it can be used in a wide variety of Ethernet networks, such as VLANs. Furthermore, the NCP1081DER2G supports up to eight CoSs, providing a secure and interoperable power management solution.

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