Maxim Integrated
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MAX5984AETI+T
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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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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX5984AETI+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX5984AETI+T in technical solutions:

  1. Q: What is the MAX5984AETI+T? A: The MAX5984AETI+T is a power management IC (PMIC) designed for Power over Ethernet (PoE) applications.

  2. Q: What is the maximum power output of the MAX5984AETI+T? A: The MAX5984AETI+T can deliver up to 25.5W of power to the PoE device.

  3. Q: Can the MAX5984AETI+T support both IEEE 802.3af and IEEE 802.3at standards? A: Yes, the MAX5984AETI+T is compliant with both IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) standards.

  4. Q: How many ports can the MAX5984AETI+T support? A: The MAX5984AETI+T can support up to four PoE ports.

  5. Q: Does the MAX5984AETI+T require an external MOSFET? A: No, the MAX5984AETI+T integrates all necessary MOSFETs internally, simplifying the design.

  6. Q: What is the input voltage range of the MAX5984AETI+T? A: The MAX5984AETI+T operates from an input voltage range of 36V to 57V.

  7. Q: Can the MAX5984AETI+T provide power classification for connected devices? A: Yes, the MAX5984AETI+T supports power classification based on the IEEE 802.3af/at standards.

  8. Q: Does the MAX5984AETI+T have built-in thermal protection? A: Yes, the MAX5984AETI+T includes thermal shutdown protection to prevent overheating.

  9. Q: Can the MAX5984AETI+T be used in industrial applications? A: Yes, the MAX5984AETI+T is suitable for a wide range of industrial PoE applications.

  10. Q: What package does the MAX5984AETI+T come in? A: The MAX5984AETI+T is available in a 28-pin TQFN package.

Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.