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LTC4273ITLUK

LTC4273ITLUK

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power over Ethernet (PoE) Controller
  • Characteristics:
    • High efficiency
    • Small form factor
    • Low power consumption
  • Package: Thin QFN-38
  • Essence: Provides power and data transmission capabilities over Ethernet cables
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies based on customer requirements

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 2.7V to 14V
  • Maximum Output Current: 600mA
  • Operating Temperature Range: -40°C to 85°C
  • Power Dissipation: 1.5W
  • Control Interface: I2C

Detailed Pin Configuration

The LTC4273ITLUK has a total of 38 pins. Here is the detailed pin configuration:

  1. VDD
  2. GND
  3. SDA
  4. SCL
  5. INT
  6. NC
  7. NC
  8. NC
  9. NC
  10. NC
  11. NC
  12. NC
  13. NC
  14. NC
  15. NC
  16. NC
  17. NC
  18. NC
  19. NC
  20. NC
  21. NC
  22. NC
  23. NC
  24. NC
  25. NC
  26. NC
  27. NC
  28. NC
  29. NC
  30. NC
  31. NC
  32. NC
  33. NC
  34. NC
  35. NC
  36. NC
  37. NC
  38. NC

Functional Features

  • Supports IEEE 802.3af/at compliant Powered Devices (PDs)
  • Provides detection, classification, and current limiting functions
  • Offers programmable current limit and inrush current control
  • Supports 2-event classification for higher power applications
  • Features thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency power delivery - Small form factor allows for compact designs - Low power consumption reduces energy costs

Disadvantages: - Limited output current of 600mA may not be suitable for high-power devices - Control interface limited to I2C, may not be compatible with all systems

Working Principles

The LTC4273ITLUK is a Power over Ethernet (PoE) controller IC. It operates by receiving power and data signals from an Ethernet cable and converting them into usable power for connected devices. The IC incorporates detection, classification, and current limiting functions to ensure safe and efficient power delivery.

Detailed Application Field Plans

The LTC4273ITLUK is commonly used in various applications that require power and data transmission over Ethernet cables. Some of the detailed application field plans include:

  1. IP Cameras: The IC can provide power to IP cameras, eliminating the need for separate power cables.
  2. Wireless Access Points: Enables power delivery to wireless access points, simplifying installation and reducing clutter.
  3. VoIP Phones: PoE-enabled phones can be powered directly through the Ethernet cable, eliminating the need for AC adapters.
  4. Network Switches: The IC can be used in network switches to provide power to connected devices such as IP phones and wireless access points.

Detailed and Complete Alternative Models

  1. LTC4267ITLUK: Similar to LTC4273ITLUK, but with a higher maximum output current of 800mA.
  2. LTC4274ITLUK: Offers additional features such as programmable undervoltage lockout and adjustable current limit.
  3. LTC4275ITLUK: Designed specifically for high-power applications, with a maximum output current of 1.5A.

These alternative models provide options for different power requirements and additional features based on specific application needs.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC4273ITLUK i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LTC4273ITLUK in technical solutions:

  1. Q: What is LTC4273ITLUK? A: LTC4273ITLUK is a Power over Ethernet (PoE) controller designed for use in various technical solutions.

  2. Q: What is the maximum power that LTC4273ITLUK can deliver? A: LTC4273ITLUK can deliver up to 25.5W of power to connected devices.

  3. Q: Can LTC4273ITLUK be used with both IEEE 802.3af and IEEE 802.3at compliant devices? A: Yes, LTC4273ITLUK is compatible with both IEEE 802.3af and IEEE 802.3at standards.

  4. Q: What is the input voltage range supported by LTC4273ITLUK? A: LTC4273ITLUK supports an input voltage range of 36V to 57V.

  5. Q: Does LTC4273ITLUK support power classification? A: Yes, LTC4273ITLUK supports power classification based on the IEEE 802.3af/at standards.

  6. Q: Can LTC4273ITLUK provide power to multiple devices simultaneously? A: Yes, LTC4273ITLUK can provide power to multiple devices through its multiple output channels.

  7. Q: Is LTC4273ITLUK suitable for outdoor applications? A: Yes, LTC4273ITLUK is designed to operate in a wide temperature range and is suitable for outdoor applications.

  8. Q: Does LTC4273ITLUK have built-in protection features? A: Yes, LTC4273ITLUK has built-in protection features such as overcurrent, overvoltage, and thermal shutdown protection.

  9. Q: Can LTC4273ITLUK be used in industrial automation systems? A: Yes, LTC4273ITLUK is suitable for use in various industrial automation systems.

  10. Q: What package does LTC4273ITLUK come in? A: LTC4273ITLUK comes in a 38-lead QFN (Quad Flat No-Lead) package.

Please note that these answers are general and may vary depending on the specific application and implementation of LTC4273ITLUK in technical solutions.