LTC4257CDD#TRPBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LTC4257CDD#TRPBF, a high speed power over Ethernet (PoE) controller, is one of the most widely trusted and popular PMIC - Power Over Ethernet (PoE) Controllers in the market. It has been proven to keep fast communication, reduce total system cost and provide low power consumption for PoE systems.

This LTC4257CDD#TRPBF allows DC power to be transferred across standard IEEE 802.3 Ethernet cables eliminating the need for power lines and wall plates. It allows Ethernet ports to deliver full power up to 4-pairs of Ethernet cables by leveraging Stanard and Enhanced Power over Ethernet. Therefore, it is beneficial for Ethernet networks deployed in hard-to-wire environments such as in industrial and transportation systems.

LTC4257CDD#TRPBF is protected with overcurrent, overvoltage and over temperature protection. It works with wide DC input supply from 10V to 56V and provides two independent MEF complaint Class 4 or 4 PD (Type 3) output pins with adjustable current limit operating from 600mA to 2000mA. With such prominent features, it is largely used in solutions such as video cameras and electrochromics offering reliability and robustness for any PoE powered system.

Moreover, this PoE controller is highly efficient and integrates an accurate 5 bit current setting DAC. It also features an integrated power limiting linear regulator with adjustable current limit. Additionally, this chip provides an integrated resistor selectable synchronization that can operates at up-to 25MHz allowing it to work at different frequencies. Its active quiescent current is less than 3mA helping to conserve energy even more.

LTC4257CDD#TRPBF works with various protocols such as Cisco UPoE$, IEEE802.3bt, LX-mode, DC-mode, PoEDiagnostics and LINK.3. It also supports both DC-DC current modes and switching regulators. It also supports active current sharing among many ports and provides accurate over current protection as well as wake-on-wire/detect/detect support. It is for these reasons why it is one of the most acclaimed PoE controllers in the industry.

In summary, LTC4257CDD#TRPBF is a reliable and efficient Power Over Ethernet controller that allows DC power to be transferred across standard IEEE 802.3 Ethernet cables eliminating the need for power lines and wall plates. It allows Ethernet ports to deliver full power up to 4-pairs of Ethernet cables while protecting itself with overcurrent, overvoltage and over temperature protection. It works with wide DC input supply from 10V to 56V, is highly efficient and supports a variety of protocols as well as active current sharing among many ports. Therefore, due to its many features and abilities this is the reason why it is one of the most popular PMIC - Power over Ethernet (PoE) Controllers in the market today.

The specific data is subject to PDF, and the above content is for reference