MAX5952AEAX+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Programmable, Current Limiting
• Package: 36-Pin TQFN
• Essence: Power-over-Ethernet (PoE) Controller
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 1.8V to 12V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to +85°C
• Power Dissipation: 1.5W
• Control Interface: I²C

Detailed Pin Configuration

The MAX5952AEAX+T has a total of 36 pins. The pin configuration is as follows:

1. VDD
2. GND
3. INT
4. SDA
5. SCL
6. ADDR0
7. ADDR1
8. ADDR2
9. ADDR3
10. ADDR4
11. ADDR5
12. ADDR6
13. ADDR7
14. ADDR8
15. ADDR9
16. ADDR10
17. ADDR11
18. ADDR12
19. ADDR13
20. ADDR14
21. ADDR15
22. ADDR16
23. ADDR17
24. ADDR18
25. ADDR19
26. ADDR20
27. ADDR21
28. ADDR22
29. ADDR23
30. ADDR24
31. ADDR25
32. ADDR26
33. ADDR27
34. ADDR28
35. ADDR29
36. ADDR30

Functional Features

• Supports IEEE 802.3af/at-compliant Powered Devices (PDs)
• Programmable current limit and classification
• Integrated thermal protection
• Automatic detection and classification of PDs
• Supports I²C interface for control and monitoring

Advantages and Disadvantages

Advantages

• High efficiency, reducing power dissipation
• Programmable current limit allows customization for different applications
• Integrated thermal protection ensures safe operation
• Automatic detection and classification simplifies system design

Disadvantages

• Limited output current of 600mA may not be suitable for high-power devices
• Requires an external microcontroller or host device for control and monitoring

Working Principles

The MAX5952AEAX+T is a Power-over-Ethernet (PoE) controller IC designed to provide power to Ethernet-connected devices. It operates by receiving power from the Ethernet cable and converting it into a regulated voltage suitable for powering the connected device.

The IC supports IEEE 802.3af/at-compliant Powered Devices (PDs) and features programmable current limit and classification capabilities. It automatically detects and classifies connected PDs, ensuring optimal power delivery.

The MAX5952AEAX+T also incorporates integrated thermal protection, which safeguards the device against overheating. This feature enhances reliability and prevents damage due to excessive temperature.

Control and monitoring of the IC are achieved through the I²C interface, allowing for easy integration with external microcontrollers or host devices.

Detailed Application Field Plans

The MAX5952AEAX+T is commonly used in various Power-over-Ethernet applications, including:

1. IP Cameras: Provides power to network cameras, eliminating the need for separate power cables.
2. Wireless Access Points: Powers Wi-Fi access points, enabling seamless connectivity without additional power sources.
3. VoIP Phones: Supplies power to Voice over IP phones, simplifying installation and reducing clutter.
4. Network Switches: Enables power delivery to Ethernet switches, enhancing flexibility in network deployment.

Detailed and Complete Alternative Models

1. MAX5942AEAX+T: Similar to the MAX5952AEAX+T, but with a higher maximum output current of 750mA.
2. MAX5969BETG+: PoE controller IC with integrated DC-DC converter for higher power applications.
3. LTC4267CGN#PBF: Power-over-Ethernet controller with advanced features such as hot-swap capability and remote monitoring.

These alternative models offer different specifications and features, allowing users to choose the most suitable option based on their specific requirements.

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