MAX5984AETI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Sourcing Equipment (PSE) Controller
• Characteristics: High Efficiency, Compact Size, Advanced Power Management Features
• Package: 28-Pin TQFN (Thin Quad Flat No-Lead)
• Essence: Provides power and control functions for Power over Ethernet (PoE) applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 3.15V to 57V
• Maximum Output Current: 650mA
• Operating Temperature Range: -40°C to +85°C
• Power Dissipation: 1.5W
• Control Interface: I2C
• Protection Features: Overcurrent, Overvoltage, Undervoltage, Thermal Shutdown

Pin Configuration

The MAX5984AETI+T has a total of 28 pins. The pin configuration is as follows:

1. VDD
2. GND
3. VDD
4. GND
5. VDD
6. GND
7. VDD
8. GND
9. VDD
10. GND
11. VDD
12. GND
13. VDD
14. GND
15. VDD
16. GND
17. VDD
18. GND
19. VDD
20. GND
21. VDD
22. GND
23. VDD
24. GND
25. VDD
26. GND
27. VDD
28. GND

Functional Features

• Integrated IEEE 802.3af/at-compliant PSE Controller
• Supports both 2-pair and 4-pair power delivery
• Advanced power management features for efficient power usage
• Programmable current limit and voltage limit
• Integrated protection features for safe operation

Advantages and Disadvantages

Advantages

• High efficiency, reducing power consumption
• Compact size, enabling space-saving designs
• Comprehensive power management capabilities
• Supports both 2-pair and 4-pair power delivery

Disadvantages

• Limited maximum output current (650mA)
• Requires an external I2C interface for control

Working Principles

The MAX5984AETI+T is a Power Sourcing Equipment (PSE) controller designed for Power over Ethernet (PoE) applications. It integrates the necessary functions to provide power and control to PoE devices. The IC supports both 2-pair and 4-pair power delivery, complying with IEEE 802.3af/at standards.

The device operates by receiving an input voltage within the range of 36V to 57V and converting it to the desired output voltage, which can be set between 3.15V and 57V. The integrated power management features allow for programmable current and voltage limits, ensuring safe and efficient power delivery.

The MAX5984AETI+T also incorporates various protection features such as overcurrent, overvoltage, undervoltage, and thermal shutdown. These safeguards help prevent damage to the device and ensure reliable operation.

Detailed Application Field Plans

The MAX5984AETI+T is commonly used in various PoE applications, including:

1. IP Cameras: Provides power and control for network cameras, eliminating the need for separate power cables.
2. Wireless Access Points: Enables power delivery to wireless access points, simplifying installation and reducing clutter.
3. VoIP Phones: Powers Voice over IP (VoIP) phones, allowing for a single cable connection for both power and data.
4. Industrial Automation: Supports PoE-enabled devices in industrial automation systems, facilitating remote monitoring and control.

Detailed and Complete Alternative Models

1. MAX5940AETI+T: Similar PSE controller with additional features such as integrated DC-DC converter.
2. LTC4267CGN#PBF: PSE controller with advanced power management capabilities and support for 4-pair power delivery.
3. TPS23861PWR: Highly integrated PSE controller with built-in diagnostics and protection features.

Note: This is not an exhaustive list of alternative models, and it is recommended to consult the manufacturer's documentation for a complete list of alternatives.

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