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MAX5957AETN+T
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MAX5957AETN+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High-efficiency, Programmable Current Limit, Thermal Shutdown
  • Package: 56-Pin TQFN (Thin Quad Flat No-Lead)
  • 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 5.5V
  • Maximum Output Current: 600mA
  • Operating Temperature Range: -40°C to +85°C
  • Power Dissipation: 1.2W

Pin Configuration

The MAX5957AETN+T has a total of 56 pins. The pin configuration is as follows:

  1. VDDP
  2. VDDC
  3. VDDA
  4. VDD
  5. GND
  6. GND
  7. GND
  8. GND
  9. GND
  10. GND
  11. GND
  12. GND
  13. GND
  14. GND
  15. GND
  16. GND
  17. GND
  18. GND
  19. GND
  20. GND
  21. GND
  22. GND
  23. GND
  24. GND
  25. GND
  26. GND
  27. GND
  28. GND
  29. GND
  30. GND
  31. GND
  32. GND
  33. GND
  34. GND
  35. GND
  36. GND
  37. GND
  38. GND
  39. GND
  40. GND
  41. GND
  42. GND
  43. GND
  44. GND
  45. GND
  46. GND
  47. GND
  48. GND
  49. GND
  50. GND
  51. GND
  52. GND
  53. GND
  54. GND
  55. GND
  56. GND

Functional Features

  • Power-over-Ethernet (PoE) Controller
  • Programmable Current Limit
  • Thermal Shutdown Protection
  • Integrated DC-DC Converter
  • High Efficiency (>90%)
  • Low Quiescent Current

Advantages and Disadvantages

Advantages: - Efficient power management for PoE applications - Programmable current limit allows customization - Thermal shutdown protection ensures safe operation - Integrated DC-DC converter simplifies design

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

Working Principles

The MAX5957AETN+T is a Power-over-Ethernet (PoE) controller that enables the delivery of power over Ethernet cables. It integrates a DC-DC converter, which efficiently converts the input voltage from the Ethernet cable to the desired output voltage. The device also features programmable current limit functionality, allowing users to customize the maximum current delivered. Additionally, thermal shutdown protection ensures safe operation by preventing overheating.

Detailed Application Field Plans

The MAX5957AETN+T is commonly used in various PoE applications, including:

  1. IP Cameras: The device can provide power to IP cameras through the Ethernet cable, eliminating the need for separate power cables.
  2. Wireless Access Points: PoE enables easy installation of wireless access points in locations where power outlets are not readily available.
  3. VoIP Phones: Powering VoIP phones via Ethernet simplifies installation and reduces clutter.
  4. Network Switches: PoE controllers like the MAX5957AETN+T are used in network switches to provide power to connected devices.

Detailed and Complete Alternative Models

  1. MAX5940AETN+T: Similar to the MAX5957AETN+T, this PoE controller offers programmable current limit and thermal shutdown protection. However, it has a higher maximum output current of 800mA.
  2. MAX5969AETN+T: This PoE controller provides similar features as the MAX5957AETN+T but includes an integrated DC-DC converter with a wider input voltage range (36V to 75V).

(Note: The above alternative models are just examples and not an exhaustive list.)

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi MAX5957AETN+T dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of MAX5957AETN+T in technical solutions:

  1. Q: What is the MAX5957AETN+T? A: The MAX5957AETN+T is a power-over-Ethernet (PoE) controller designed for use in network devices that require power delivery over Ethernet cables.

  2. Q: What is the maximum power output of the MAX5957AETN+T? A: The MAX5957AETN+T can deliver up to 25.5W of power per port, compliant with the IEEE 802.3af/at standards.

  3. Q: Can the MAX5957AETN+T be used in both PoE and PoE+ applications? A: Yes, the MAX5957AETN+T supports both PoE (IEEE 802.3af) and PoE+ (IEEE 802.3at) standards, making it suitable for various applications.

  4. Q: How many ports does the MAX5957AETN+T support? A: The MAX5957AETN+T supports up to 8 ports, allowing you to power multiple devices simultaneously.

  5. Q: Does the MAX5957AETN+T provide any protection features? A: Yes, the MAX5957AETN+T offers various protection features such as overcurrent protection, thermal shutdown, and under-voltage lockout.

  6. Q: Can the MAX5957AETN+T be used with both 10/100Mbps and Gigabit Ethernet networks? A: Yes, the MAX5957AETN+T is compatible with both 10/100Mbps and Gigabit Ethernet networks, providing flexibility in network setups.

  7. Q: Does the MAX5957AETN+T support power classification? A: Yes, the MAX5957AETN+T supports power classification based on the IEEE 802.3af/at standards, allowing for efficient power allocation.

  8. Q: Can the MAX5957AETN+T be used in industrial applications? A: Yes, the MAX5957AETN+T is designed to operate in a wide temperature range (-40°C to +85°C), making it suitable for industrial environments.

  9. Q: What is the input voltage range of the MAX5957AETN+T? A: The MAX5957AETN+T operates with an input voltage range of 36V to 57V, which is typical for PoE applications.

  10. Q: Are there any evaluation kits available for the MAX5957AETN+T? A: Yes, Maxim Integrated provides evaluation kits that include the MAX5957AETN+T and other necessary components for testing and prototyping purposes.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.