L'image peut être une représentation.
Voir les spécifications pour les détails du produit.
LTC4279IS#TRPBF

LTC4279IS#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power over Ethernet (PoE) Controller

Characteristics: - Provides power and data to PoE-enabled devices - Supports IEEE 802.3af/at/bt standards - Enables power sourcing equipment (PSE) functionality - Offers advanced power management features

Package: 16-Lead Narrow SSOP

Essence: The LTC4279IS#TRPBF is a highly integrated PoE controller designed for use in power sourcing equipment (PSE). It allows for the delivery of both power and data over Ethernet cables to PoE-enabled devices, such as IP cameras, wireless access points, and VoIP phones.

Packaging/Quantity: The LTC4279IS#TRPBF is available in a 16-Lead Narrow SSOP package. The quantity per reel is typically 2500 units.

Specifications

The LTC4279IS#TRPBF offers the following specifications:

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 2.7V to 14V
  • Maximum Output Current: 1.7A
  • Operating Temperature Range: -40°C to 85°C
  • Power Dissipation: 1.5W (typical)
  • Compliance with IEEE 802.3af/at/bt standards

Detailed Pin Configuration

The LTC4279IS#TRPBF features a 16-Lead Narrow SSOP package with the following pin configuration:

  1. VDD
  2. VDDSENSE
  3. VEE
  4. VEESENSE
  5. GND
  6. GND
  7. GND
  8. GND
  9. CLASS
  10. DETECT
  11. DISCONNECT
  12. ENABLE
  13. ILIM
  14. VOUT
  15. VOUTSENSE
  16. NC

Functional Features

The LTC4279IS#TRPBF offers the following functional features:

  1. Advanced Power Management: The controller provides various power management features, including programmable current limit, thermal shutdown protection, and fault detection.
  2. IEEE 802.3af/at/bt Compliance: It supports the latest PoE standards, ensuring compatibility with a wide range of PoE-enabled devices.
  3. Integrated Protection: The device incorporates built-in protection mechanisms to safeguard against overcurrent, overvoltage, and overtemperature conditions.
  4. Flexible Configuration: The controller allows for easy customization of power delivery parameters through external resistors and capacitors.

Advantages and Disadvantages

Advantages: - High integration reduces component count and board space requirements. - Wide input voltage range enables compatibility with various power sources. - Advanced power management features enhance system reliability and efficiency. - Compliance with industry standards ensures interoperability with PoE devices.

Disadvantages: - Limited output current may not be suitable for high-power applications. - The package size may pose challenges in space-constrained designs. - Requires careful consideration of thermal management due to power dissipation.

Working Principles

The LTC4279IS#TRPBF operates based on the principles of Power over Ethernet (PoE) technology. It integrates the necessary circuitry to extract power from an Ethernet cable and regulate it for use by PoE-enabled devices. The controller communicates with the powered device to negotiate power requirements and ensure safe and efficient power delivery.

Detailed Application Field Plans

The LTC4279IS#TRPBF finds application in various fields, including: - IP Surveillance Systems: Enables power and data transmission to IP cameras, eliminating the need for separate power cables. - Wireless Networking: Provides power to wireless access points, simplifying installation and reducing cable clutter. - Voice over IP (VoIP) Phones: Enables power delivery to VoIP phones, eliminating the need for separate power adapters.

Detailed and Complete Alternative Models

  1. LTC4274: PoE controller with similar features but different package options.
  2. TPS23861: IEEE 802.3bt-compliant PoE controller with enhanced power management capabilities.
  3. MAX5941: Integrated PoE controller with advanced fault protection features.

These alternative models offer similar functionality and can be considered based on specific design requirements.

Word count: 515 words

Énumérez 10 questions et réponses courantes liées à l'application de LTC4279IS#TRPBF dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of LTC4279IS#TRPBF:

  1. Q: What is LTC4279IS#TRPBF? A: LTC4279IS#TRPBF is a Power over Ethernet (PoE) controller designed for use in technical solutions.

  2. Q: What is the purpose of LTC4279IS#TRPBF? A: The purpose of LTC4279IS#TRPBF is to provide power and data connectivity to devices over an Ethernet network using PoE technology.

  3. Q: What are the key features of LTC4279IS#TRPBF? A: Some key features of LTC4279IS#TRPBF include IEEE 802.3af/at/bt compatibility, integrated power management, and support for various PoE classes.

  4. Q: How does LTC4279IS#TRPBF work? A: LTC4279IS#TRPBF works by receiving power from a PoE-enabled switch or injector and converting it into usable voltage levels for connected devices.

  5. Q: What types of devices can be powered using LTC4279IS#TRPBF? A: LTC4279IS#TRPBF can power a wide range of devices such as IP cameras, wireless access points, VoIP phones, and IoT devices.

  6. Q: Can LTC4279IS#TRPBF provide power to multiple devices simultaneously? A: Yes, LTC4279IS#TRPBF supports multiple ports, allowing it to power multiple devices simultaneously.

  7. Q: Is LTC4279IS#TRPBF compatible with different PoE standards? A: Yes, LTC4279IS#TRPBF is compatible with IEEE 802.3af, 802.3at, and 802.3bt PoE standards.

  8. Q: What is the maximum power output of LTC4279IS#TRPBF? A: The maximum power output of LTC4279IS#TRPBF depends on the specific PoE standard being used, but it can support up to 90W per port for 802.3bt.

  9. Q: Does LTC4279IS#TRPBF provide any protection features? A: Yes, LTC4279IS#TRPBF offers various protection features such as overcurrent protection, short-circuit protection, and thermal shutdown.

  10. Q: Are there any design considerations when using LTC4279IS#TRPBF in technical solutions? A: Yes, some design considerations include proper heat dissipation, voltage regulation, and ensuring compatibility with the target devices' power requirements.

Please note that these answers are general and may vary depending on the specific application and requirements.