MAX5982BETE+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX5982BETE+ belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for power sourcing equipment (PSE) applications in Power over Ethernet (PoE) systems.

Characteristics

• The MAX5982BETE+ is a highly efficient, quad-port PoE PSE controller.
• It supports both IEEE 802.3af and IEEE 802.3at standards.
• This IC integrates all necessary functions required for a PSE, including detection, classification, current limiting, and power management.
• It offers advanced features such as programmable current limit, thermal shutdown protection, and fault reporting.

Package and Quantity

The MAX5982BETE+ is available in a 16-pin TQFN package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 44V to 57V
• Maximum Output Current: 600mA per port
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 92%
• Power Dissipation: 1.5W (typical)

Pin Configuration

The MAX5982BETE+ has a total of 16 pins. The pin configuration is as follows:

1. VDD
2. VDD
3. VDD
4. VDD
5. GND
6. GND
7. GND
8. GND
9. NC
10. NC
11. NC
12. NC
13. Port 1
14. Port 2
15. Port 3
16. Port 4

Functional Features

• Integrated detection and classification circuitry for IEEE 802.3af/at compliance.
• Programmable current limit per port, allowing customization based on specific requirements.
• Overtemperature protection with thermal shutdown to prevent damage due to excessive heat.
• Fault reporting feature provides detailed information about any detected faults or errors.

Advantages and Disadvantages

Advantages

• High efficiency design minimizes power losses and maximizes energy transfer.
• Supports both IEEE 802.3af and IEEE 802.3at standards, ensuring compatibility with a wide range of PoE devices.
• Comprehensive fault reporting feature aids in troubleshooting and maintenance.
• Programmable current limit allows flexibility in power delivery.

Disadvantages

• Limited output current per port (600mA) may not be sufficient for certain high-power devices.
• The package size may pose challenges in space-constrained applications.

Working Principles

The MAX5982BETE+ operates as a PSE controller in a PoE system. It receives power from an external power supply and delivers it to connected powered devices (PDs) over Ethernet cables. The IC incorporates detection and classification circuitry to identify PDs and determine their power requirements. It then regulates the power delivery by controlling the current limit and monitoring the device's status. The integrated fault reporting feature provides real-time feedback on any issues encountered during operation.

Application Field Plans

The MAX5982BETE+ finds extensive application in various Power over Ethernet systems, including: - IP cameras and surveillance systems - Wireless access points - VoIP phones - Network switches - Industrial automation equipment - IoT devices

Alternative Models

For those seeking alternative options, the following models can be considered: - MAX5941AETN+: A quad-port PoE PSE controller with similar features and specifications. - LTC4267CGN: Another quad-port PoE PSE controller offering advanced power management capabilities. - TPS23861PWR: A highly integrated PoE PSE controller with enhanced diagnostic features.

In conclusion, the MAX5982BETE+ is a versatile and efficient quad-port PoE PSE controller that offers advanced features for power sourcing equipment applications. Its compatibility with IEEE standards, programmable current limit, and fault reporting make it an excellent choice for various PoE systems.

Word count: 524 words