MAX5974EETE+TG3U

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: 16-TQFN (4x4)
• Essence: Power over Ethernet (PoE) Controller
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 1.8V to 5.5V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 92%
• Standby Power Consumption: Less than 10mW

Pin Configuration

The MAX5974EETE+TG3U has a total of 16 pins arranged as follows:

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| | | 1 16| | | | 2 15| | | | 3 14| | | | 4 13| | | | 5 12| | | | 6 11| | | | 7 10| | | | 8 9| |_______________| ```

Functional Features

• Integrated PoE controller for power sourcing equipment (PSE)
• Supports IEEE 802.3af/at compliant powered devices (PD)
• Provides detection, classification, and power management functions
• Enables efficient power transfer over Ethernet cables
• Includes thermal shutdown and short-circuit protection mechanisms

Advantages and Disadvantages

Advantages: - High efficiency power management - Low power consumption - Compact package size - Supports IEEE 802.3af/at standards

Disadvantages: - Limited maximum output current (600mA) - Operating temperature range may not be suitable for extreme environments

Working Principles

The MAX5974EETE+TG3U is a Power over Ethernet (PoE) controller designed for use in power sourcing equipment (PSE). It enables the transfer of power and data over Ethernet cables to compliant powered devices (PD). The controller integrates various functions such as detection, classification, and power management to ensure efficient power delivery.

When connected to a PD, the MAX5974EETE+TG3U detects its presence and classifies it according to the IEEE 802.3af/at standards. It then negotiates the power requirements with the PD and adjusts the power delivery accordingly. The controller also includes protection mechanisms like thermal shutdown and short-circuit protection to prevent damage to the PSE or PD.

Detailed Application Field Plans

The MAX5974EETE+TG3U is commonly used in various applications that require Power over Ethernet capabilities. Some of the typical application fields include:

1. IP Cameras: The controller can provide power to IP cameras, eliminating the need for separate power cables and simplifying installation.
2. Wireless Access Points: It can be used to power wireless access points, enabling network connectivity in remote locations without access to AC power outlets.
3. VoIP Phones: The controller allows PoE-enabled VoIP phones to receive power and data through a single Ethernet cable, reducing clutter and installation complexity.
4. Network Switches: It can be integrated into network switches to provide PoE functionality, allowing for easy deployment of PoE devices throughout the network.

Detailed and Complete Alternative Models

1. MAX5974AETE+: Similar to MAX5974EETE+TG3U, but with a different package (16-TQFN-EP).
2. MAX5974BETE+: Another variant with a different package (16-TQFN-EP) and improved thermal characteristics.
3. MAX5974CETE+: Similar to MAX5974EETE+TG3U, but with a higher maximum output current of 800mA.

These alternative models offer similar functionality and can be considered as replacements or alternatives to the MAX5974EETE+TG3U depending on specific requirements.

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