MAX5988CETP+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power over Ethernet (PoE) Controller
• Characteristics:
  • High efficiency
  • Small package size
  • Low power consumption
• Package: TQFN-EP (4mm x 4mm)
• 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 5.5V
• Maximum Output Current: 1.7A
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 92%
• Standby Power Consumption: Less than 10mW

Pin Configuration

The MAX5988CETP+T has a total of 20 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

Functional Features

• Integrated IEEE 802.3af/at-compliant PD interface
• Supports both 2-event and 4-event classification
• Programmable current limit and inrush current control
• Built-in thermal shutdown protection
• Overvoltage and undervoltage lockout protection
• Fast startup time for quick power delivery

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Small package size allows for space-saving designs - Supports both 2-event and 4-event classification, providing flexibility - Programmable current limit enables customization

Disadvantages: - Limited output voltage range (3.3V to 5.5V) - Operating temperature range may not be suitable for extreme environments

Working Principles

The MAX5988CETP+T is a PoE controller that integrates the necessary functions for powering Ethernet devices over a single Ethernet cable. It follows the IEEE 802.3af/at standards for Power over Ethernet.

When connected to an Ethernet switch or injector, the MAX5988CETP+T detects if the connected device is PoE-compatible. It then provides the appropriate power level based on the device's requirements. The controller regulates the voltage and current to ensure safe and efficient power delivery.

Detailed Application Field Plans

The MAX5988CETP+T is commonly used in various applications where power needs to be delivered over Ethernet cables. Some of the typical application fields include:

1. IP Cameras: The controller can power IP cameras, eliminating the need for separate power cables and simplifying installation.
2. Wireless Access Points: PoE-enabled access points can be easily powered using the MAX5988CETP+T, reducing clutter and improving flexibility in network deployment.
3. VoIP Phones: Powering VoIP phones through Ethernet cables allows for easier setup and relocation of devices.
4. Network Switches: The controller can be used in network switches to provide PoE capabilities for connected devices.

Detailed and Complete Alternative Models

1. MAX5969BETG+: Similar PoE controller with extended input voltage range and higher maximum output current.
2. LTC4267CGN#PBF: PoE controller with advanced features such as integrated hot-swap FET and I2C interface.
3. TPS23754PWPR: PoE controller with integrated power MOSFETs and advanced power management features.

These alternative models offer similar functionality to the MAX5988CETP+T and can be considered based on specific application requirements.

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