The TPS23851DCER from Texas Instruments is a state-of-the-art Power over Ethernet (PoE) Power Sourcing Equipment (PSE) controller designed for multi-port, high-power applications. This integrated circuit is specifically engineered to facilitate the delivery of power in conjunction with data over Ethernet cables in accordance with the IEEE 802.3at standard, also known as PoE+ or PoE Plus.

Key Features

• Compliance with IEEE 802.3at: The TPS23851DCER adheres to the latest PoE standards, ensuring compatibility with a wide range of PoE-enabled devices.
• Quad-Port Capability: Designed to control and monitor up to four PoE ports simultaneously, this chip is ideal for network switches, injectors, and midspans that require multi-port functionality.
• Advanced Power Management: It features programmable power classification signatures for each port, enabling dynamic power allocation and optimization across the network.
• Enhanced Protection: The device incorporates numerous protection features, such as over-current, under-current, and over-voltage protection, safeguarding both the PSE and the powered devices.
• Power Good (PG) Reporting: The chip provides real-time power good reporting for each port, which helps in monitoring the status and ensuring reliable operation.

Applications

The TPS23851DCER is suitable for a variety of applications where multi-port PoE is required. Common use cases include:

• Network Switches
• Wireless Access Points
• IP Security Cameras
• VoIP Phones
• Industrial Control Systems

Package and Availability

The device comes in a 38-pin HTSSOP (DCER) package, offering a compact solution for space-constrained applications. It is available for order and can be sourced through Texas Instruments' official distributors or directly from their website.

Technical Support and Resources

For engineers and designers, Texas Instruments provides extensive technical support, including datasheets, application notes, and design resources, to facilitate the integration of the TPS23851DCER into their projects.