MAX5965AUAX+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: 36-Pin TQFN
• Essence: Power over Ethernet (PoE) Controller
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 44V to 57V
• Output Voltage Range: 3.3V to 24V
• Maximum Output Current: 1.2A
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 94%
• Power Dissipation: 1.5W
• Control Interface: I2C

Detailed Pin Configuration

The MAX5965AUAX+T has a total of 36 pins. The pin configuration is as follows:

1. VDD
2. VDD
3. VDD
4. GND
5. GND
6. GND
7. GND
8. GND
9. GND
10. GND
11. GND
12. GND
13. GND
14. GND
15. GND
16. GND
17. GND
18. GND
19. GND
20. GND
21. GND
22. GND
23. GND
24. GND
25. GND
26. GND
27. GND
28. GND
29. GND
30. GND
31. GND
32. GND
33. GND
34. GND
35. GND
36. GND

Functional Features

• Power over Ethernet (PoE) controller with integrated DC-DC converter
• Supports IEEE 802.3af/at/bt standards
• Provides power to Ethernet devices over standard network cables
• Efficient power management with high conversion efficiency
• Overcurrent and overvoltage protection
• I2C interface for control and monitoring

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Compact package size - Compliance with PoE standards - Integrated protection features

Disadvantages: - Limited output current capacity (1.2A) - Requires external components for complete PoE implementation

Working Principles

The MAX5965AUAX+T is a Power over Ethernet (PoE) controller that enables the delivery of power to Ethernet devices over standard network cables. It integrates a DC-DC converter that efficiently converts the input voltage from the Ethernet cable into a regulated output voltage suitable for powering the connected device.

The controller supports various PoE standards, including IEEE 802.3af/at/bt, ensuring compatibility with a wide range of PoE-enabled devices. It provides overcurrent and overvoltage protection to safeguard both the controller and the connected device.

The MAX5965AUAX+T communicates with the host system through an I2C interface, allowing for control and monitoring of the power delivery process. This enables advanced power management features and facilitates integration into larger systems.

Detailed Application Field Plans

The MAX5965AUAX+T is commonly used in applications where power needs to be delivered to Ethernet devices over standard network cables. Some typical application fields include:

1. IP Cameras: The controller can power IP cameras, eliminating the need for separate power cables and simplifying installation.
2. Wireless Access Points: PoE enables wireless access points to be conveniently powered through the Ethernet cable, reducing clutter and improving flexibility in deployment.
3. VoIP Phones: PoE allows VoIP phones to receive power and data over the same Ethernet cable, simplifying installation and reducing costs.
4. Network Switches: The controller can be used in network switches to provide PoE capabilities for powering connected devices.

Detailed and Complete Alternative Models

1. MAX5965BETX+: Similar to MAX5965AUAX+T, but in a different package (36-Pin TQFN).
2. MAX5966AUAX+T: PoE controller with higher output current capacity (up to 3A).
3. MAX5967AUAX+T: PoE controller with integrated DC-DC converter and additional features such as thermal shutdown protection.

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