LTC4267IDHC-3#PBF

Product Overview

Category

The LTC4267IDHC-3#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 delivery of both power and data over a single Ethernet cable, eliminating the need for separate power cables.

Characteristics

• Integrated circuit for PoE applications
• Supports IEEE 802.3af/at standards
• Provides power to connected devices
• Enables data transmission over Ethernet
• Compact and efficient design

Package

The LTC4267IDHC-3#PBF is available in a small form factor package, which ensures easy integration into various electronic devices. The package type is DFN (Dual Flat No-Lead), which offers improved thermal performance and reduced footprint.

Essence

The essence of the LTC4267IDHC-3#PBF lies in its ability to efficiently manage power delivery and data transmission in PoE systems. By integrating multiple functions into a single chip, it simplifies the design and implementation of PoE-enabled devices.

Packaging/Quantity

The LTC4267IDHC-3#PBF is typically supplied in tape and reel packaging, ensuring ease of handling during manufacturing processes. The exact quantity per reel may vary depending on the supplier, but it is commonly available in quantities suitable for both prototyping and mass production.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 2.7V to 14V
• Maximum Output Current: 400mA
• Operating Temperature Range: -40°C to 85°C
• Compliance with IEEE 802.3af/at Standards

Detailed Pin Configuration

The LTC4267IDHC-3#PBF features a 16-pin DFN package with the following pin configuration:

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

Functional Features

• Integrated power management functions for PoE applications
• Detection and classification of connected devices
• Efficient power delivery with overcurrent protection
• Data transmission over Ethernet using integrated transformers
• Low power consumption in standby mode

Advantages and Disadvantages

Advantages

• Simplifies design and implementation of PoE systems
• Compact size allows for integration into various devices
• Compliance with industry standards ensures compatibility
• Efficient power delivery and data transmission
• Overcurrent protection enhances system reliability

Disadvantages

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

Working Principles

The LTC4267IDHC-3#PBF operates based on the IEEE 802.3af/at standards for Power over Ethernet. It detects and classifies connected devices, determines their power requirements, and delivers the appropriate amount of power while ensuring data transmission integrity. The integrated transformers facilitate the bidirectional flow of power and data over the Ethernet cable.

Detailed Application Field Plans

The LTC4267IDHC-3#PBF finds application in various fields where Power over Ethernet is utilized. Some potential application areas include: - IP cameras and surveillance systems - Wireless access points - VoIP phones - Industrial automation equipment - Building management systems

Detailed and Complete Alternative Models

• LTC4267IDHC-2#PBF: Similar to LTC4267IDHC-3#PBF, but with a different output voltage range (2.7V to 5.5V).
• LTC4267IDHC-4#PBF: Similar to LTC4267IDHC-3#PBF, but with a different output voltage range (2.7V to 20V).
• LTC4267IDHC-5#PBF: Similar to LTC4267IDHC-3#PBF, but with a different output voltage range (2.7V to 24V).

These alternative models provide flexibility in meeting specific power requirements for different applications.

In conclusion, the LTC4267IDHC-3#PBF is an integrated circuit designed for Power over Ethernet applications. It offers efficient power delivery and data transmission capabilities while complying with industry standards. With its compact size and various functional features, it simplifies the implementation of PoE systems in a wide range of applications.