Linear Technology/Analog Devices
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LTC4267IGN-1#PBF
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LTC4267IGN-1#PBF

Product Overview

Category

LTC4267IGN-1#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used for power sourcing equipment (PSE) in Power over Ethernet (PoE) systems. It enables the efficient transfer of power and data over a single Ethernet cable, eliminating the need for separate power cables.

Characteristics

  • High efficiency: The LTC4267IGN-1#PBF offers high efficiency power conversion, minimizing energy losses during power transfer.
  • Compact package: It comes in a small form factor package, making it suitable for space-constrained applications.
  • Robust design: The product is designed to withstand harsh operating conditions, ensuring reliable performance in various environments.

Package

LTC4267IGN-1#PBF is available in an 8-pin plastic dual in-line package (PDIP), which provides ease of integration into existing circuit designs.

Essence

The essence of LTC4267IGN-1#PBF lies in its ability to efficiently manage power transfer in PoE systems, enabling the seamless integration of power and data transmission over Ethernet cables.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 3.3V to 5V
  • Maximum Output Current: 400mA
  • Operating Temperature Range: -40°C to 85°C
  • Power Dissipation: 1.25W

Detailed Pin Configuration

  1. VDD: Power supply input
  2. GND: Ground reference
  3. VOUT: Output voltage
  4. NC: No connection
  5. EN: Enable pin
  6. NC: No connection
  7. NC: No connection
  8. NC: No connection

Functional Features

  • Power over Ethernet (PoE) compatibility: The LTC4267IGN-1#PBF is designed to comply with PoE standards, ensuring seamless integration into PoE systems.
  • Integrated power management: It incorporates various power management features such as overcurrent protection, thermal shutdown, and undervoltage lockout, enhancing system reliability.
  • Flexible output voltage selection: The product allows for adjustable output voltage within a specified range, providing versatility in different applications.

Advantages and Disadvantages

Advantages

  • Efficient power transfer
  • Compact form factor
  • Robust design for reliable performance
  • Compliance with PoE standards
  • Integrated power management features

Disadvantages

  • Limited maximum output current (400mA)
  • Restricted input voltage range (36V to 57V)

Working Principles

LTC4267IGN-1#PBF operates by converting the high voltage input from the PoE source into a regulated low voltage output suitable for powering connected devices. It employs advanced power management techniques to ensure efficient power transfer while maintaining system integrity.

Detailed Application Field Plans

The LTC4267IGN-1#PBF finds application in various fields where PoE systems are utilized. Some of the key application areas include:

  1. IP Cameras: The product can power IP cameras over Ethernet cables, simplifying installation and reducing wiring complexity.
  2. Wireless Access Points: It enables the deployment of wireless access points without the need for separate power supplies, facilitating flexible network expansion.
  3. VoIP Phones: LTC4267IGN-1#PBF can provide power to VoIP phones, eliminating the need for additional power adapters and streamlining communication infrastructure.

Detailed and Complete Alternative Models

  1. LTC4267IGN#PBF: Similar to LTC4267IGN-1#PBF, but without the enable pin functionality.
  2. LTC4267CGN-1#PBF: A variant with a different package (16-pin SSOP) and higher maximum output current (600mA).
  3. LTC4267IGN-2#PBF: Another variant with a different package (10-pin MSOP) and lower maximum output current (300mA).

These alternative models offer flexibility in terms of pin compatibility, package options, and output current requirements, catering to diverse application needs.

In conclusion, LTC4267IGN-1#PBF is a highly efficient integrated circuit designed for power management in PoE systems. Its compact size, robust design, and compliance with PoE standards make it an ideal choice for various applications requiring power and data transmission over Ethernet cables.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC4267IGN-1#PBF i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LTC4267IGN-1#PBF in technical solutions:

Q1: What is LTC4267IGN-1#PBF? A1: LTC4267IGN-1#PBF is a specific model number for a Power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It is used for managing power delivery in PoE applications.

Q2: What are the key features of LTC4267IGN-1#PBF? A2: Some key features of LTC4267IGN-1#PBF include IEEE 802.3af-compliant PoE, integrated switching regulator, programmable current limit, thermal shutdown protection, and support for various power sourcing equipment (PSE) types.

Q3: How does LTC4267IGN-1#PBF enable Power over Ethernet? A3: LTC4267IGN-1#PBF integrates the necessary circuitry to extract power from an Ethernet cable and provide it to a connected device, eliminating the need for a separate power supply.

Q4: What are the typical applications of LTC4267IGN-1#PBF? A4: LTC4267IGN-1#PBF is commonly used in applications such as IP phones, wireless access points, security cameras, industrial control systems, and other devices that require power and data connectivity over a single Ethernet cable.

Q5: Can LTC4267IGN-1#PBF handle high power requirements? A5: Yes, LTC4267IGN-1#PBF supports up to 25.5W of power delivery, making it suitable for devices with higher power demands.

Q6: Does LTC4267IGN-1#PBF support various PSE types? A6: Yes, LTC4267IGN-1#PBF is compatible with both end-span and mid-span PSE types, providing flexibility in system design.

Q7: How can I configure the current limit on LTC4267IGN-1#PBF? A7: The current limit on LTC4267IGN-1#PBF can be programmed using external resistors connected to specific pins on the IC.

Q8: Does LTC4267IGN-1#PBF have built-in protection features? A8: Yes, LTC4267IGN-1#PBF includes thermal shutdown protection, which helps prevent damage due to excessive heat.

Q9: Can LTC4267IGN-1#PBF operate in harsh environments? A9: LTC4267IGN-1#PBF has a wide operating temperature range and is designed to withstand challenging environmental conditions, making it suitable for use in industrial applications.

Q10: Is LTC4267IGN-1#PBF readily available for purchase? A10: Availability may vary, but LTC4267IGN-1#PBF can typically be purchased from authorized distributors or directly from Analog Devices.