MAX5993AATL+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: 40-Lead Thin QFN (5mm x 5mm)
• 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: 3.3V to 12V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%
• Quiescent Current: 100µA (typical)

Detailed Pin Configuration

The MAX5993AATL+T has a total of 40 pins. The pin configuration is as follows:

1. VDD
2. VDD
3. VDD
4. VDD
5. GND
6. GND
7. GND
8. GND
9. EN
10. FB
11. SS
12. SYNC
13. CLKOUT
14. CLKIN
15. CLKFB
16. CLKSEL
17. VDD
18. VDD
19. VDD
20. VDD
21. GND
22. GND
23. GND
24. GND
25. VOUT
26. VOUT
27. VOUT
28. VOUT
29. GND
30. GND
31. GND
32. GND
33. VDD
34. VDD
35. VDD
36. VDD
37. GND
38. GND
39. GND
40. GND

Functional Features

• Power-over-Ethernet (PoE) Controller
• Integrated DC-DC Converter
• Supports IEEE 802.3af/at Standards
• Programmable Output Voltage and Current Limit
• Over-Temperature Protection
• Under-Voltage Lockout (UVLO)
• Short-Circuit Protection

Advantages and Disadvantages

Advantages: - High Efficiency - Low Power Consumption - Compact Package Size - Wide Input Voltage Range - Programmable Output Voltage and Current Limit

Disadvantages: - Limited Maximum Output Current (600mA)

Working Principles

The MAX5993AATL+T is a PoE controller that integrates a DC-DC converter. It is designed to provide power to Ethernet devices over standard Ethernet cables. The device supports the IEEE 802.3af/at standards for PoE, allowing it to deliver power up to 25.5W.

The controller operates by converting the input voltage from the Ethernet cable into a regulated output voltage suitable for powering the connected device. It incorporates various protection features such as over-temperature protection, under-voltage lockout, and short-circuit protection to ensure safe and reliable operation.

Detailed Application Field Plans

The MAX5993AATL+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: It can provide power to wireless access points, enabling them to be installed in locations without easy access to power outlets.
3. VoIP Phones: The controller is suitable for powering VoIP phones, allowing for a single cable connection for both data and power.
4. Network Switches: It can be used in network switches to provide power to connected devices, reducing clutter and improving flexibility in network installations.

Detailed and Complete Alternative Models

1. MAX5969AATL+T: Similar PoE controller with higher maximum output current (800mA).
2. MAX5970AATL+T: PoE controller with integrated DC-DC converter and higher maximum output current (1A).
3. MAX5994AATL+T: PoE controller with integrated DC-DC converter and support for IEEE 802.3bt standard (up to 90W power delivery).

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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