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LTC4267CDHC-3#TRPBF
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LTC4267CDHC-3#TRPBF

Product Overview

Category

The LTC4267CDHC-3#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • The LTC4267CDHC-3#TRPBF is a high-performance power sourcing equipment (PSE) controller.
  • It is designed to provide power over Ethernet (PoE) to various devices.
  • This IC supports both IEEE 802.3af and IEEE 802.3at standards for PoE.

Package

The LTC4267CDHC-3#TRPBF comes in a small form factor package, known as a 16-pin DFN (Dual Flat No-Lead) package.

Essence

The essence of this product lies in its ability to efficiently manage power delivery over Ethernet connections.

Packaging/Quantity

The LTC4267CDHC-3#TRPBF is typically sold in reels, with each reel containing a quantity of 250 units.

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 0V to 57V
  • Maximum Output Current: 600mA
  • Operating Temperature Range: -40°C to 85°C
  • Power Dissipation: 1.5W

Detailed Pin Configuration

The LTC4267CDHC-3#TRPBF has the following pin configuration:

  1. VDD - Power supply input
  2. GND - Ground reference
  3. MDI - Medium Dependent Interface
  4. MDO - Medium Dependent Output
  5. AUX - Auxiliary power output
  6. PWRGD - Power Good indicator
  7. FLT - Fault indicator
  8. REF - Reference voltage output
  9. VOUT - Output voltage
  10. VOUT - Output voltage
  11. VOUT - Output voltage
  12. VOUT - Output voltage
  13. VOUT - Output voltage
  14. VOUT - Output voltage
  15. VOUT - Output voltage
  16. VOUT - Output voltage

Functional Features

  • Integrated detection and classification of powered devices.
  • Supports both 10/100Mbps and Gigabit Ethernet speeds.
  • Provides accurate current limit and fault protection.
  • Offers programmable inrush current control.
  • Includes thermal shutdown protection.

Advantages and Disadvantages

Advantages

  • High-performance PSE controller for efficient power management.
  • Supports industry-standard PoE standards.
  • Compact package size for space-constrained applications.
  • Comprehensive fault protection features.

Disadvantages

  • Limited maximum output current compared to some other PSE controllers.
  • Requires external components for complete PoE implementation.

Working Principles

The LTC4267CDHC-3#TRPBF operates by monitoring the Ethernet connection for the presence of a powered device. It then negotiates the power requirements with the device, providing the necessary power over the Ethernet cable. The IC also incorporates various protection mechanisms to ensure safe and reliable power delivery.

Detailed Application Field Plans

The LTC4267CDHC-3#TRPBF finds application in a wide range of power management scenarios, including: - IP cameras - Wireless access points - VoIP phones - Network switches - Industrial automation equipment

Detailed and Complete Alternative Models

  1. LTC4267CDHC-2#TRPBF: Similar to LTC4267CDHC-3#TRPBF but supports IEEE 802.3af standard only.
  2. LTC4267CDHC-4#TRPBF: Similar to LTC4267CDHC-3#TRPBF but supports higher output current of 800mA.

These alternative models offer similar functionality with slight variations in specifications to cater to different application requirements.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem LTC4267CDHC-3#TRPBF w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of LTC4267CDHC-3#TRPBF in technical solutions:

  1. Q: What is LTC4267CDHC-3#TRPBF? A: LTC4267CDHC-3#TRPBF is a specific model of power sourcing equipment (PSE) controller IC used in Power over Ethernet (PoE) applications.

  2. Q: What are the key features of LTC4267CDHC-3#TRPBF? A: Some key features of LTC4267CDHC-3#TRPBF include IEEE 802.3af/at compliant PSE, integrated detection/classification signature, programmable current limit, and thermal shutdown protection.

  3. Q: How does LTC4267CDHC-3#TRPBF work in PoE applications? A: LTC4267CDHC-3#TRPBF acts as a controller for the PSE, providing power to connected PoE devices by negotiating power requirements and managing power delivery.

  4. Q: Can LTC4267CDHC-3#TRPBF support both IEEE 802.3af and IEEE 802.3at standards? A: Yes, LTC4267CDHC-3#TRPBF is compatible with both IEEE 802.3af and IEEE 802.3at standards, allowing it to power a wide range of PoE devices.

  5. Q: What is the maximum power output of LTC4267CDHC-3#TRPBF? A: The maximum power output of LTC4267CDHC-3#TRPBF depends on the power supply and system design, but it can support up to 25.5W per port in IEEE 802.3at mode.

  6. Q: Can LTC4267CDHC-3#TRPBF be used in non-PoE applications? A: While LTC4267CDHC-3#TRPBF is primarily designed for PoE applications, it can also be used in non-PoE applications that require power sourcing equipment functionality.

  7. Q: Does LTC4267CDHC-3#TRPBF provide protection against overcurrent or short-circuit conditions? A: Yes, LTC4267CDHC-3#TRPBF includes programmable current limit and thermal shutdown protection to safeguard against overcurrent and short-circuit conditions.

  8. Q: What is the operating voltage range of LTC4267CDHC-3#TRPBF? A: LTC4267CDHC-3#TRPBF operates within a voltage range of 36V to 57V, which is typical for PoE applications.

  9. Q: Can LTC4267CDHC-3#TRPBF be used in high-temperature environments? A: Yes, LTC4267CDHC-3#TRPBF is designed to operate in extended temperature ranges, making it suitable for high-temperature environments.

  10. Q: Are there any evaluation boards or reference designs available for LTC4267CDHC-3#TRPBF? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs for LTC4267CDHC-3#TRPBF to help with development and testing.

Please note that the specific details and answers may vary depending on the manufacturer's documentation and application requirements.