Maxim Integrated MAX5971BETI+ Power over Ethernet (PoE) Controller

The MAX5971BETI+ is a sophisticated Power over Ethernet (PoE) controller designed by Maxim Integrated, offering an efficient and flexible solution for powering devices over Ethernet cables. This integrated circuit is specifically tailored for use in Power Sourcing Equipment (PSE) that requires IEEE 802.3at compliance, providing up to 30W of power per port to connected Powered Devices (PDs).

Key Features

• IEEE 802.3at Compliance: The MAX5971BETI+ adheres to the stringent requirements of the IEEE 802.3at standard, ensuring compatibility with a wide range of PDs while delivering enhanced power capabilities.
• Integrated Power MOSFET: This controller includes an integrated power MOSFET, simplifying the design and reducing the external component count.
• Advanced Power Management: It boasts a sophisticated power management system that includes programmable current limit, auto-classification, and power-up control for PDs, allowing for efficient power allocation and protection.
• High Scalability: The MAX5971BETI+ supports both single-port and multi-port applications, providing scalability for various network configurations.
• Robust Protection Features: Comprehensive protection mechanisms, such as overcurrent protection, undercurrent detection, and thermal shutdown, ensure reliable operation under adverse conditions.
• Diagnostic Capabilities: Built-in diagnostic features facilitate troubleshooting and maintenance, enhancing the system's reliability and longevity.
• Compact Package: Housed in a space-saving 28-pin TQFN package, the MAX5971BETI+ is designed for compact PSE designs.

Applications

The MAX5971BETI+ is ideal for a variety of applications where remote power delivery is essential. These include:

• Network switches and routers with PoE capability
• IP surveillance cameras and security systems
• VoIP phones and wireless access points
• Industrial controls and factory automation equipment

With its robust feature set and compliance with the latest PoE standards, the MAX5971BETI+ from Maxim Integrated is an excellent choice for designers looking to create efficient and reliable PSE solutions for their networked devices.