Linear Technology/Analog Devices
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LTC4267CGN-3#TRPBF
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LTC4267CGN-3#TRPBF

Product Overview

Category

The LTC4267CGN-3#TRPBF belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • Integrated circuit
  • Designed for PoE applications
  • Supports PSE functionality
  • High efficiency
  • Small form factor
  • Low power consumption

Package

The LTC4267CGN-3#TRPBF is available in a 16-pin SSOP package.

Essence

The essence of this product lies in its ability to provide power sourcing capabilities in PoE systems, enabling the transmission of both data and power over a single Ethernet cable.

Packaging/Quantity

The LTC4267CGN-3#TRPBF is typically packaged in reels containing 250 units.

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 2.5V to 57V
  • Maximum Output Current: 400mA
  • Operating Temperature Range: -40°C to 85°C
  • Power Dissipation: 1.25W

Detailed Pin Configuration

Pin Number | Pin Name | Description --- | --- | --- 1 | VDD | Power supply input 2 | GND | Ground 3 | VOUT | Output voltage 4 | NC | No connection 5 | NC | No connection 6 | NC | No connection 7 | NC | No connection 8 | NC | No connection 9 | NC | No connection 10 | NC | No connection 11 | NC | No connection 12 | NC | No connection 13 | NC | No connection 14 | NC | No connection 15 | NC | No connection 16 | NC | No connection

Functional Features

  • Integrated PSE functionality
  • Automatic detection and classification of powered devices
  • Overcurrent protection
  • Thermal shutdown protection
  • Fast fault recovery
  • Low power consumption in standby mode

Advantages and Disadvantages

Advantages

  • High efficiency power sourcing for PoE systems
  • Compact form factor
  • Comprehensive protection features
  • Easy integration into existing designs
  • Reliable performance

Disadvantages

  • Limited maximum output current (400mA)
  • Restricted operating temperature range (-40°C to 85°C)

Working Principles

The LTC4267CGN-3#TRPBF operates as a Power Sourcing Equipment (PSE) in a Power over Ethernet (PoE) system. It provides power to connected Powered Devices (PDs) through an Ethernet cable. The integrated circuit automatically detects and classifies the PDs, ensuring optimal power delivery. The device incorporates various protection mechanisms such as overcurrent and thermal shutdown to safeguard against faults and ensure safe operation.

Detailed Application Field Plans

The LTC4267CGN-3#TRPBF finds applications in various fields where Power over Ethernet is required. Some potential application areas include:

  1. IP Cameras: The LTC4267CGN-3#TRPBF can be used to power IP cameras, eliminating the need for separate power cables and simplifying installation.

  2. Wireless Access Points: By utilizing the LTC4267CGN-3#TRPBF, wireless access points can receive both data and power through a single Ethernet cable, reducing clutter and improving flexibility in network deployment.

  3. VoIP Phones: Powering VoIP phones with the LTC4267CGN-3#TRPBF enables seamless communication without the need for additional power adapters.

  4. Industrial Automation: The LTC4267CGN-3#TRPBF can be employed in industrial automation systems, providing power to various devices such as sensors and actuators.

Detailed and Complete Alternative Models

  1. LTC4267CGN-2#TRPBF: Similar to the LTC4267CGN-3#TRPBF, but with a different output voltage range (2.5V to 57V).

  2. LTC4267CGN-4#TRPBF: Another variant of the LTC4267CGN series, offering a different maximum output current (600mA).

  3. LTC4267CGN-3#TRPBFX: This model includes additional features such as enhanced fault protection and extended temperature range (-40°C to 125°C).

  4. LTC4267CGN-3#TRPBF-ND: A non-standard version of the LTC4267CGN-3#TRPBF, available in bulk packaging.

In conclusion, the LTC4267CGN-3#TRPBF is an integrated circuit designed for Power over Ethernet applications. It provides efficient power sourcing capabilities, automatic detection and classification of powered devices, and comprehensive protection features. While it has limitations in terms

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC4267CGN-3#TRPBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LTC4267CGN-3#TRPBF in technical solutions:

  1. Q: What is LTC4267CGN-3#TRPBF? A: LTC4267CGN-3#TRPBF is a specific model of Power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It provides power management and control functions for PoE applications.

  2. Q: What are the key features of LTC4267CGN-3#TRPBF? A: Some key features of LTC4267CGN-3#TRPBF include IEEE 802.3af/at compliant PoE PD interface, integrated DC/DC converter controller, programmable current limit, and fault protection features.

  3. Q: How can LTC4267CGN-3#TRPBF be used in technical solutions? A: LTC4267CGN-3#TRPBF can be used as a PoE PD interface in various technical solutions such as IP cameras, wireless access points, VoIP phones, and other devices that require both data and power over Ethernet.

  4. Q: What is the maximum power that LTC4267CGN-3#TRPBF can handle? A: LTC4267CGN-3#TRPBF can handle up to 25.5W of power, which is compliant with the IEEE 802.3af/at standards.

  5. Q: Can LTC4267CGN-3#TRPBF support both 10/100Mbps and Gigabit Ethernet? A: Yes, LTC4267CGN-3#TRPBF supports both 10/100Mbps and Gigabit Ethernet interfaces.

  6. Q: Does LTC4267CGN-3#TRPBF have built-in protection features? A: Yes, LTC4267CGN-3#TRPBF has various built-in protection features such as overcurrent protection, thermal shutdown, and under-voltage lockout.

  7. Q: Can LTC4267CGN-3#TRPBF operate in a wide temperature range? A: Yes, LTC4267CGN-3#TRPBF can operate in a wide temperature range from -40°C to +85°C.

  8. Q: Is LTC4267CGN-3#TRPBF compatible with other PoE standards like 4PPoE? A: No, LTC4267CGN-3#TRPBF is not compatible with 4PPoE (Four-Pair Power over Ethernet) standard. It is designed for IEEE 802.3af/at compliant PoE applications.

  9. Q: Does LTC4267CGN-3#TRPBF require any external components for operation? A: Yes, LTC4267CGN-3#TRPBF requires some external components such as resistors, capacitors, and an inductor for proper operation.

  10. Q: Where can I find more information about LTC4267CGN-3#TRPBF? A: You can find more detailed information about LTC4267CGN-3#TRPBF in the datasheet provided by Analog Devices or on their official website.