Maxim Integrated
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MAX5984DETI+T
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MAX5984DETI+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Sourcing Equipment (PSE) Controller
  • Characteristics: High Efficiency, Compact Size, Advanced Protection Features
  • Package: 14-Pin TDFN (Thin Dual Flat No-Lead)
  • Essence: Provides power and control functions for Power over Ethernet (PoE) systems
  • 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: 650mA
  • Operating Temperature Range: -40°C to +85°C
  • Efficiency: Up to 92%
  • Control Interface: I2C-Compatible Serial Interface

Pin Configuration

The MAX5984DETI+T has the following pin configuration:

  1. VDD: Power Supply Input
  2. GND: Ground
  3. INT: Interrupt Output
  4. SDA: I2C Data Input/Output
  5. SCL: I2C Clock Input
  6. EN: Enable Input
  7. FB: Feedback Input
  8. VOUT: Output Voltage
  9. VOUT: Output Voltage
  10. VOUT: Output Voltage
  11. VOUT: Output Voltage
  12. VOUT: Output Voltage
  13. VOUT: Output Voltage
  14. VOUT: Output Voltage

Functional Features

  • Integrated PSE controller for PoE applications
  • Supports IEEE 802.3af/at compliant devices
  • Advanced protection features including overcurrent, overvoltage, and thermal shutdown
  • Programmable output voltage and current limit
  • I2C interface for easy control and monitoring

Advantages and Disadvantages

Advantages

  • High efficiency design reduces power dissipation
  • Compact package allows for space-saving designs
  • Advanced protection features ensure safe operation
  • Flexible control interface enables easy integration into various systems

Disadvantages

  • Limited output current may not be suitable for high-power applications
  • Requires additional external components for complete PoE system implementation

Working Principles

The MAX5984DETI+T is designed to provide power and control functions for PoE systems. It integrates a PSE controller that complies with the IEEE 802.3af/at standards. The device receives power from an external power source and delivers it to the powered device (PD) over Ethernet cables.

The IC incorporates advanced protection features such as overcurrent, overvoltage, and thermal shutdown to ensure safe operation. It also offers programmable output voltage and current limit settings, allowing flexibility in different application scenarios.

The MAX5984DETI+T communicates with the host system through an I2C-compatible serial interface, enabling easy control and monitoring of the device's parameters.

Detailed Application Field Plans

The MAX5984DETI+T is widely used in various Power over Ethernet applications, including:

  1. IP Cameras: Provides power and control functions 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: Integrates power sourcing capabilities into Voice over IP phones, streamlining deployment and maintenance.
  4. Industrial Automation: Powers Ethernet-enabled industrial devices such as sensors, actuators, and controllers, enhancing connectivity and flexibility.

Detailed and Complete Alternative Models

  1. MAX5969A: PSE controller with higher output current capability (up to 1A).
  2. LT4276: Integrated PSE controller with extended temperature range (-40°C to +125°C).
  3. TPS23861: IEEE 802.3bt compliant PSE controller with enhanced power delivery capabilities.

These alternative models offer different features and specifications, providing options for various PoE system requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX5984DETI+T en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of MAX5984DETI+T in technical solutions:

  1. Q: What is the MAX5984DETI+T? A: The MAX5984DETI+T is a power management IC (integrated circuit) designed for Power-over-Ethernet (PoE) applications.

  2. Q: What is Power-over-Ethernet (PoE)? A: PoE is a technology that allows both power and data to be transmitted over Ethernet cables, eliminating the need for separate power cables in certain devices.

  3. Q: What are the main features of the MAX5984DETI+T? A: The MAX5984DETI+T features IEEE 802.3af/at-compliant PoE functionality, integrated DC-DC converters, thermal protection, and various control and diagnostic features.

  4. Q: What is the maximum power output of the MAX5984DETI+T? A: The MAX5984DETI+T can deliver up to 25.5W of power per port, making it suitable for powering a wide range of devices.

  5. Q: Can the MAX5984DETI+T support both 10/100Mbps and Gigabit Ethernet? A: Yes, the MAX5984DETI+T supports both 10/100Mbps and Gigabit Ethernet, providing flexibility for different network configurations.

  6. Q: Does the MAX5984DETI+T have built-in protection mechanisms? A: Yes, the MAX5984DETI+T includes various protection features such as overcurrent protection, overtemperature protection, and short-circuit protection.

  7. Q: Can the MAX5984DETI+T be used in industrial applications? A: Yes, the MAX5984DETI+T is designed to operate in a wide temperature range and can be used in industrial environments.

  8. Q: How many ports does the MAX5984DETI+T support? A: The MAX5984DETI+T supports up to four PoE ports, allowing multiple devices to be powered simultaneously.

  9. Q: Is the MAX5984DETI+T compatible with other PoE standards? A: Yes, the MAX5984DETI+T is compatible with both IEEE 802.3af and IEEE 802.3at PoE standards, ensuring interoperability with various devices.

  10. Q: What are some typical applications of the MAX5984DETI+T? A: The MAX5984DETI+T is commonly used in IP cameras, wireless access points, VoIP phones, and other networked devices that require power over Ethernet.

Please note that these answers are general and may vary depending on specific implementation requirements.