MAX5980AGTJ+T

Product Overview

• Category: Integrated Circuit
• Use: Power over Ethernet (PoE) Controller
• Characteristics: High efficiency, compact size, advanced power management features
• Package: 32-pin TQFN (Thin Quad Flat No-Lead)
• Essence: Provides power and control for PoE applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 3.3V to 12V
• Maximum Output Current: 1.5A
• Efficiency: Up to 94%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX5980AGTJ+T has a total of 32 pins. The pin configuration is as follows:

1. VDDP
2. VDDC
3. VDDA
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

Functional Features

• Integrated IEEE 802.3af/at-compliant PD interface
• Advanced power management with programmable current limit and thermal shutdown
• Supports both DC and AC input voltage detection
• Provides power classification and detection for PoE applications

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power dissipation - Compact size allows for space-saving designs - Advanced power management features enhance system reliability

Disadvantages: - Limited output current of 1.5A may not be suitable for high-power applications - Operating temperature range may restrict usage in extreme environments

Working Principles

The MAX5980AGTJ+T is a Power over Ethernet (PoE) controller that enables the transmission of both power and data over a single Ethernet cable. It integrates an IEEE 802.3af/at-compliant PD interface, allowing it to receive power from a PoE-enabled switch or injector. The controller provides power classification and detection, ensuring compatibility with various PoE devices.

The device incorporates advanced power management features, including programmable current limit and thermal shutdown. These features protect the system from overcurrent and overheating conditions, enhancing overall reliability.

Detailed Application Field Plans

The MAX5980AGTJ+T is commonly used in various PoE applications, including:

1. IP Cameras: Enables power and data transmission to network cameras, eliminating the need for separate power cables.
2. Wireless Access Points: Provides power to wireless access points, simplifying installation and reducing clutter.
3. VoIP Phones: Allows for power delivery to Voice over IP phones, enabling seamless communication without additional power adapters.
4. Network Switches: Facilitates power distribution to PoE-enabled switches, eliminating the need for external power supplies.

Detailed and Complete Alternative Models

1. MAX5979AGTJ+T: Similar to MAX5980AGTJ+T, but with a higher maximum output current of 2.5A.
2. MAX5969BETG+: Offers similar functionality but comes in a smaller 24-pin TQFN package.
3. LTC4267CGN#PBF: Alternative PoE controller with integrated power management features and a 16-pin SSOP package.

These alternative models provide similar functionality to the MAX5980AGTJ+T and can be considered based on specific application requirements.

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