LTC4269IDKD-2#TRPBF

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The LTC4269IDKD-2#TRPBF is a high-performance power over Ethernet (PoE) controller that enables the delivery of both data and power over Ethernet cabling. It is designed to reduce power consumption and system cost by eliminating the need for expensive and bulky point-of-load (POL) converters, making it ideal for cost-sensitive networking solutions. The LTC4269IDKD-2#TRPBF successfully meets the stringent requirements of IEEE 802.3af Power over Ethernet and IEEE 802.3at Power over Ethernet PLUS (PoE+) standards.

Application Field

The LTC4269IDKD-2#TRPBF is typically used in systems that require high-performance PoE controllers with reduced power consumption and limited system cost, such as small cells, Wi-Fi access points, security surveillance systems, Bluetooth low energy (BLE) applications, and other remote powered Ethernet devices that require both data and power over Ethernet cabling. The device is also an ideal choice for applications that require a compact footprint, such as cable modems, set-top boxes, and other powering solutions that require high efficiency.

Features and Benefits

The LTC4269IDKD-2#TRPBF is designed to be a high-performance PoE controller with two features that stand out from the competition. First, the device offers seamless and highly efficient Power over Ethernet delivery with a maximum of 40 W delivery capability, allowing for maximum load current of 2.5 A. Second, by reducing the number of external components, the LTC4269IDKD-2#TRPBF reduces the power consumption, enabling up to 91% efficiency in applications. Moreover, the device is available in a space-saving 2 × 1.8 mm IC, which reduces system cost and provides higher efficiency. Finally, the device also supports a wide range of operating temperature, making it ideal for operating in challenging environments.

Working Principle

The LTC4269IDKD-2#TRPBF works by utilizing a method called Automatic Power Classification (APC). This allows the device to identify the type of powered device, and then to adjust the delivered power accordingly according to IEEE 802.3af/at regulations. The controller is designed to detect two levels: Class 0, which is the highest power level, and Class 3, which is the lowest power level. When a powered device is connected, the controller automatically detects its type and adjusts the delivered power accordingly. Furthermore, the LTC4269IDKD-2#TRPBF also provides a PoE Fault Signal, which can be used to alert the system designer in the event of a fault condition.

Conclusion

In conclusion, the LTC4269IDKD-2#TRPBF is a high-performance power-over-Ethernet controller that enables the delivery of both data and power over Ethernet cabling. It is designed to reduce power consumption and system cost, making it ideal for cost-sensitive networking solutions. Furthermore, it offers seamless and highly efficient Power over Ethernet delivery, and by reducing the number of external components, it enables up to 91% efficiency in applications. Finally, the device also supports a wide range of operating temperature, making it a reliable choice in challenging environments.

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