Product Overview: LTC4258CGW#TRPBF

The LTC4258CGW#TRPBF is a robust, feature-rich integrated circuit designed by Linear Technology, now part of Analog Devices, specifically for Power over Ethernet (PoE) applications. This highly efficient IC is tailored to facilitate the implementation of PoE functionality in Ethernet-powered devices such as VoIP phones, wireless network access points, and security cameras, allowing them to receive power along with data over standard Ethernet cables.

Key Features

• IEEE 802.3af Compliant: The LTC4258CGW#TRPBF adheres to the IEEE 802.3af standard, ensuring compatibility with other compliant devices and systems.
• Quad PSE Controller: This product functions as a Power Sourcing Equipment (PSE) controller, capable of managing up to four PoE ports, making it an efficient solution for multi-port applications.
• Integrated Power MOSFET: Each channel includes an integrated power MOSFET, streamlining the design process by reducing external component requirements.
• Advanced Power Management: The IC features sophisticated power management capabilities, including programmable current limit, inrush current control, and fault protection mechanisms.
• Auto Classification: The device supports automatic detection and classification of powered devices (PDs), ensuring proper power allocation and system safety.

Package and Temperature Range

The LTC4258CGW#TRPBF comes in a 36-lead SSOP package, offering a compact footprint for space-constrained applications. It operates over a wide industrial temperature range, making it suitable for use in harsh environments.

Applications

• Enterprise Networking Equipment
• VoIP Phones and IP Cameras
• Wireless Network Access Points
• Industrial Automation Systems

In summary, the LTC4258CGW#TRPBF from Linear Technology provides a reliable and efficient solution for enabling PoE capabilities in a variety of networked devices. Its compliance with the IEEE 802.3af standard, along with its integrated features and robust design, make it an ideal choice for developers looking to enhance their networking products with PoE functionality.