NCP1090DBRG Integrated Circuits (ICs)

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Power Over Ethernet (PoE) Controllers are an important class of integrated circuits that control the power supply over Ethernet ports. These devices are typically used to provide high speed, low latency, reliable data connections and to meet the requirements of the latest server and enterprise networks. NCP1090DBRG is a PoE controller from ON Semiconductor that features support for 7.5Watt and 15Watt Powered Device (PD) standards. This application field involves many applications including data and telephony networks, as well as renewable energy systems.

One of the most important features of the NCP1090DBRG is its support for multiple output over-voltage protection (MOPOVP) long-term fault condition. The MOPOVP technology helps in detecting and automatically responding to fault conditions in the Ethernet for extended times without tripping the over-voltage protectors. It is also used to help reduce the potential for damage to the Ethernet ports. This feature also helps in controlling the current levels in the devices, allowing them to operate safely in high voltage environments.

The NCP1090DBRG also features a support Auto-MDIX (Auto-Medium Dependent Interface Crossover) technology. This technology automatically detects the type of the cable connected to the device, allowing the Ethernet ports to communicate at the right speeds. This ensures that the connection remains reliable even when the cable type changes.

The NCP1090DBRG has integrated voltage regulators to provide low-voltage, low-power operation for the PoE ports. These regulators also allow for the configuration of two different output voltage levels, providing flexibility in setting the idle mode current limit. This feature helps to preserve battery life in mobile applications and can make it easier to configure several PoE ports in larger networks.

The NCP1090DBRG also features a Hot Swap Feature. This feature allows the device to detect when a hard power-cycle or power failure occurred and initiate a reset or power-up sequence for the PoE ports. This ensures that the device\'s functionality is maintained during an unexpected power failure.

The NCP1090DBRG also has over-voltage protection (OVP) protection built in. The OVP limits the amount of voltage that can be supplied to the PoE ports, preventing them from becoming overloaded. This provides added reliability in the event that an unexpected over-voltage condition occurs.

In addition to the features mentioned above, the NCP1090DBRG has a wide power supply range, with an input voltage range of 6.3V to 24V. This makes the device suitable for both low and high voltage applications. It also features an integrated precision current sensing circuit for accurate measurement of the PoE ports\' current levels. This enables the controller to be used in multi-port applications, where each port must remain stable and within predetermined current thresholds.

The NCP1090DBRG has a wide temperature operating range, with an operating temperature range of -40°C to +85°C. This makes the device suitable for both indoor and outdoor applications. It is constructed using robust, industrial-grade components, making it suitable for use in the harshest conditions.

Overall, the NCP1090DBRG is an excellent PoE controller that provides multiple features and benefits for use in a variety of applications. Its support for Auto-MDIX, MOPOVP, Hot Swap, and OVP ensures reliable Ethernet connections and protection against over-voltage conditions. Its precise current sensing capabilities and wide range of power supply voltage inputs make it suitable for both indoor and outdoor applications.

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