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LTC4274AIUHF-3#TRPBF
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LTC4274AIUHF-3#TRPBF

Product Overview

Category

The LTC4274AIUHF-3#TRPBF belongs to the category of power management integrated circuits (PMICs).

Use

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

Characteristics

  • The LTC4274AIUHF-3#TRPBF is a high-power, single-port PoE controller.
  • It supports the IEEE 802.3at standard, also known as PoE+.
  • This PMIC provides up to 25.5W of power to connected devices.
  • It features an integrated switching regulator for efficient power conversion.
  • The LTC4274AIUHF-3#TRPBF offers advanced power management and protection features.

Package

The LTC4274AIUHF-3#TRPBF comes in a small 38-lead QFN package.

Essence

The essence of this PMIC lies in its ability to efficiently deliver power to PoE-enabled devices while ensuring reliable operation and protection against faults.

Packaging/Quantity

The LTC4274AIUHF-3#TRPBF is typically available in tape and reel packaging, with a quantity of 250 units per reel.

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
  • Integrated Switching Regulator Efficiency: Up to 95%
  • Power Over Ethernet Standard: IEEE 802.3at (PoE+)

Detailed Pin Configuration

The LTC4274AIUHF-3#TRPBF has a total of 38 pins. Here is a detailed pin configuration:

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

Functional Features

  • Integrated PSE controller for PoE+ applications.
  • Advanced power management and protection features.
  • Efficient switching regulator for power conversion.
  • Supports 2-event classification and 4-event detection.
  • Provides accurate current and voltage monitoring.

Advantages and Disadvantages

Advantages

  • High-power capability for PoE+ applications.
  • Comprehensive power management and protection features.
  • Efficient power conversion with high switching regulator efficiency.
  • Accurate current and voltage monitoring.

Disadvantages

  • Limited output current compared to some other PMICs in the market.
  • Relatively higher cost compared to lower-power PoE controllers.

Working Principles

The LTC4274AIUHF-3#TRPBF operates as a Power Sourcing Equipment (PSE) controller in a Power over Ethernet (PoE) system. It receives power from an external power source and efficiently converts it to the required voltage for PoE-enabled devices. The integrated switching regulator ensures high efficiency power conversion, while advanced power management and protection features safeguard against faults and ensure reliable operation.

Detailed Application Field Plans

The LTC4274AIUHF-3#TRPBF finds applications in various fields, including: 1. IP cameras and surveillance systems 2. Wireless access points 3. VoIP phones 4. Industrial automation equipment 5. Building management systems 6. IoT devices requiring PoE connectivity

Detailed and Complete Alternative Models

  1. LTC4274A-1#PBF: Similar to LTC4274AIUHF-3#TRPBF but without the integrated switching regulator.
  2. LTC4274AIUHF-2#TRPBF: Lower-power version of LTC4274AIU

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af LTC4274AIUHF-3#TRPBF i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of LTC4274AIUHF-3#TRPBF in technical solutions:

  1. Q: What is LTC4274AIUHF-3#TRPBF? A: LTC4274AIUHF-3#TRPBF is a specific model of Power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It is designed for use in PoE applications.

  2. Q: What is the purpose of LTC4274AIUHF-3#TRPBF? A: The purpose of LTC4274AIUHF-3#TRPBF is to provide power and data connectivity to devices over an Ethernet cable, eliminating the need for separate power cables.

  3. Q: What are the key features of LTC4274AIUHF-3#TRPBF? A: Some key features of LTC4274AIUHF-3#TRPBF include IEEE 802.3af/at/bt compatibility, integrated switching regulator, advanced power management, and various protection mechanisms.

  4. Q: How does LTC4274AIUHF-3#TRPBF work? A: LTC4274AIUHF-3#TRPBF works by receiving power from a PoE-enabled switch or injector through an Ethernet cable and converting it into usable voltage levels for the connected device.

  5. Q: What types of devices can LTC4274AIUHF-3#TRPBF power? A: LTC4274AIUHF-3#TRPBF can power a wide range of devices such as IP cameras, wireless access points, VoIP phones, IoT devices, and other network-connected devices that support PoE.

  6. Q: What is the maximum power output of LTC4274AIUHF-3#TRPBF? A: The maximum power output of LTC4274AIUHF-3#TRPBF depends on the specific PoE standard being used. It supports up to 90W for IEEE 802.3bt applications.

  7. Q: Can LTC4274AIUHF-3#TRPBF provide both power and data connectivity? A: Yes, LTC4274AIUHF-3#TRPBF is designed to provide both power and data connectivity over a single Ethernet cable, simplifying installation and reducing cable clutter.

  8. Q: What are the protection mechanisms in LTC4274AIUHF-3#TRPBF? A: LTC4274AIUHF-3#TRPBF includes various protection mechanisms such as overcurrent protection, overvoltage protection, undervoltage lockout, thermal shutdown, and fault detection.

  9. Q: Is LTC4274AIUHF-3#TRPBF compatible with existing PoE standards? A: Yes, LTC4274AIUHF-3#TRPBF is compatible with IEEE 802.3af/at/bt standards, ensuring interoperability with other PoE devices and infrastructure.

  10. Q: Are there any application-specific considerations when using LTC4274AIUHF-3#TRPBF? A: Yes, it is important to consider factors such as power requirements, cable length, and network topology when designing a PoE solution using LTC4274AIUHF-3#TRPBF to ensure optimal performance and compatibility.

Please note that the answers provided here are general and may vary depending on the specific implementation and requirements of your technical solution.