Linear Technology/QD Devices
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LTC4267CGN#PBF
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LTC4267CGN#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Sourcing Equipment (PSE) Controller

Characteristics: - High Efficiency - Low Power Dissipation - Wide Input Voltage Range - Robust Protection Features

Package: 16-Lead SSOP

Essence: The LTC4267CGN#PBF is a PSE controller IC designed for use in Power over Ethernet (PoE) applications. It provides power and data to connected devices through an Ethernet cable.

Packaging/Quantity: The LTC4267CGN#PBF is available in a 16-Lead SSOP package and is typically sold in reels of 2500 units.

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 44V to 57V
  • Maximum Output Current: 400mA
  • Operating Temperature Range: -40°C to 85°C
  • Power Dissipation: 1.5W

Pin Configuration

The LTC4267CGN#PBF features the following pin configuration:

  1. VDD
  2. GND
  3. VOUT
  4. VOUT
  5. VOUT
  6. VOUT
  7. VOUT
  8. VOUT
  9. VOUT
  10. VOUT
  11. VOUT
  12. VOUT
  13. VOUT
  14. VOUT
  15. VOUT
  16. VOUT

Functional Features

  • IEEE 802.3af Compliant
  • Automatic Detection and Classification of Powered Devices
  • Programmable Current Limit
  • Overtemperature Protection
  • Short-Circuit Protection
  • Under-Voltage Lockout

Advantages and Disadvantages

Advantages: - High Efficiency Design - Wide Input Voltage Range - Robust Protection Features

Disadvantages: - Limited Output Current (400mA)

Working Principles

The LTC4267CGN#PBF operates by receiving power from an external DC source and converting it into a regulated output voltage suitable for powering PoE devices. It incorporates various protection features to ensure safe and reliable operation.

Detailed Application Field Plans

The LTC4267CGN#PBF is commonly used in the following application fields:

  1. IP Cameras
  2. Wireless Access Points
  3. VoIP Phones
  4. Network Switches
  5. Industrial Automation Equipment

Detailed and Complete Alternative Models

  1. LTC4267IGN#PBF
  2. LTC4267HGN#PBF
  3. LTC4267MPGN#PBF
  4. LTC4267MS8#PBF
  5. LTC4267MS8#TRPBF

These alternative models offer similar functionality and characteristics to the LTC4267CGN#PBF, providing flexibility for different design requirements.

In conclusion, the LTC4267CGN#PBF is a highly efficient PSE controller IC designed for PoE applications. With its wide input voltage range and robust protection features, it offers a reliable solution for powering various Ethernet-connected devices.

قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق LTC4267CGN#PBF في الحلول التقنية

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

  1. Q: What is LTC4267CGN#PBF? A: LTC4267CGN#PBF is a 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#PBF? A: Some key features of LTC4267CGN#PBF include IEEE 802.3af/at compliant PoE, integrated PD interface, programmable current limit, thermal shutdown protection, and support for various power sourcing equipment (PSE) types.

  3. Q: How does LTC4267CGN#PBF enable Power over Ethernet? A: LTC4267CGN#PBF integrates the necessary circuitry to extract power from an Ethernet cable and provide it to the connected device. It supports both 802.3af and 802.3at standards for PoE.

  4. Q: Can LTC4267CGN#PBF be used in non-PoE applications? A: Yes, LTC4267CGN#PBF can also be used in non-PoE applications as a general-purpose power management and control IC. However, its primary design is for PoE applications.

  5. Q: What is the maximum power that LTC4267CGN#PBF can deliver? A: The maximum power that LTC4267CGN#PBF can deliver depends on the PSE it is connected to. It supports up to 25.5W for 802.3af and up to 30W for 802.3at.

  6. Q: Can LTC4267CGN#PBF be used with both 10/100Mbps and Gigabit Ethernet? A: Yes, LTC4267CGN#PBF is compatible with both 10/100Mbps and Gigabit Ethernet networks.

  7. Q: Does LTC4267CGN#PBF support power classification? A: Yes, LTC4267CGN#PBF supports power classification according to the IEEE 802.3af/at standards. It can detect and classify connected devices as either Class 0, 1, 2, 3, or 4.

  8. Q: What protection features does LTC4267CGN#PBF offer? A: LTC4267CGN#PBF provides various protection features such as overcurrent protection, thermal shutdown protection, and undervoltage lockout (UVLO) for safe operation.

  9. Q: Can LTC4267CGN#PBF be used in industrial applications? A: Yes, LTC4267CGN#PBF is suitable for industrial applications as it operates over a wide temperature range (-40°C to +85°C) and offers robust protection features.

  10. Q: Are evaluation boards available for LTC4267CGN#PBF? A: Yes, Analog Devices provides evaluation boards for LTC4267CGN#PBF, which can help in testing and prototyping PoE solutions using this IC.

Please note that the answers provided here are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes for detailed information.