Linear Technology/QD Devices
이미지는 예시일 수 있습니다.
제품 세부사항은 사양을 확인하세요.
LTC4291IUF-1#TRPBF

LTC4291IUF-1#TRPBF

Product Overview

Category

The LTC4291IUF-1#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the Power over Ethernet (PoE) controllers.

Use

This product is primarily used in PoE applications, where it enables the delivery of power and data over a single Ethernet cable. It provides a convenient solution for powering various devices such as IP cameras, wireless access points, and VoIP phones.

Characteristics

  • Power over Ethernet (PoE) controller
  • Supports IEEE 802.3af/at standards
  • Integrated detection and classification functions
  • Efficient power management features
  • Compact and versatile design

Package

The LTC4291IUF-1#TRPBF comes in a small form factor QFN (Quad Flat No-Lead) package, which allows for easy integration onto circuit boards. The package dimensions are typically 4mm x 4mm.

Essence

The essence of LTC4291IUF-1#TRPBF lies in its ability to simplify the implementation of Power over Ethernet technology by providing comprehensive control and management features in a compact package.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of LTC4291IUF-1#TRPBF ICs. The exact quantity may vary depending on the supplier or manufacturer.

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
  • Package Type: QFN-32

Detailed Pin Configuration

The LTC4291IUF-1#TRPBF has a total of 32 pins. Here is a detailed pin configuration:

  1. VDD - Power supply input
  2. VDDSENSE - Power supply sense input
  3. VDDSENSE - Power supply sense input
  4. VDDSENSE - Power supply sense input
  5. VDDSENSE - Power supply sense input
  6. VDDSENSE - Power supply sense input
  7. VDDSENSE - Power supply sense input
  8. VDDSENSE - Power supply sense input
  9. VDDSENSE - Power supply sense input
  10. VDDSENSE - Power supply sense input
  11. VDDSENSE - Power supply sense input
  12. VDDSENSE - Power supply sense input
  13. VDDSENSE - Power supply sense input
  14. VDDSENSE - Power supply sense input
  15. VDDSENSE - Power supply sense input
  16. VDDSENSE - Power supply sense input
  17. VDDSENSE - Power supply sense input
  18. VDDSENSE - Power supply sense input
  19. VDDSENSE - Power supply sense input
  20. VDDSENSE - Power supply sense input
  21. VDDSENSE - Power supply sense input
  22. VDDSENSE - Power supply sense input
  23. VDDSENSE - Power supply sense input
  24. VDDSENSE - Power supply sense input
  25. VDDSENSE - Power supply sense input
  26. VDDSENSE - Power supply sense input
  27. VDDSENSE - Power supply sense input
  28. VDDSENSE - Power supply sense input
  29. VDDSENSE - Power supply sense input
  30. VDDSENSE - Power supply sense input
  31. VDDSENSE - Power supply sense input
  32. GND - Ground

Functional Features

  • Integrated detection and classification functions for PoE devices
  • Comprehensive power management features, including current limiting and thermal shutdown
  • Supports both IEEE 802.3af and IEEE 802.3at standards
  • Flexible control options through I2C interface
  • Efficient power conversion and delivery capabilities

Advantages and Disadvantages

Advantages

  • Simplifies implementation of Power over Ethernet technology
  • Compact form factor allows for easy integration into various applications
  • Comprehensive power management features ensure safe and efficient operation
  • Supports both IEEE 802.3af and IEEE 802.3at standards, providing compatibility with a wide range of PoE devices

Disadvantages

  • Limited maximum output current (600mA), which may not be sufficient for high-power devices
  • Requires additional external components for complete PoE system implementation

Working Principles

The LTC4291IUF-1#TRPBF operates by receiving power and data from an Ethernet cable connected to a PoE switch or injector. It incorporates detection and classification functions to identify the connected PoE device and determine its power requirements. The IC then manages the power

기술 솔루션에 LTC4291IUF-1#TRPBF 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of LTC4291IUF-1#TRPBF in technical solutions:

Q1: What is LTC4291IUF-1#TRPBF? A1: LTC4291IUF-1#TRPBF is a specific model number for a power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It is designed to provide power and control for PoE applications.

Q2: What are the key features of LTC4291IUF-1#TRPBF? A2: Some key features of LTC4291IUF-1#TRPBF include IEEE 802.3af/at compliant PD interface, integrated power MOSFETs, programmable current limit, thermal shutdown protection, and fault detection.

Q3: How can LTC4291IUF-1#TRPBF be used in technical solutions? A3: LTC4291IUF-1#TRPBF can be used in various technical solutions that require power over Ethernet functionality, such as IP cameras, wireless access points, VoIP phones, and other network-connected devices.

Q4: What is the maximum power output of LTC4291IUF-1#TRPBF? A4: The maximum power output of LTC4291IUF-1#TRPBF depends on the input voltage and current limit settings. It supports up to 25.5W per port for IEEE 802.3at compliant devices.

Q5: Can LTC4291IUF-1#TRPBF be used with non-PoE devices? A5: Yes, LTC4291IUF-1#TRPBF can be used with non-PoE devices by disabling the PoE functionality. It can still provide power and control for non-PoE devices.

Q6: What is the input voltage range supported by LTC4291IUF-1#TRPBF? A6: LTC4291IUF-1#TRPBF supports an input voltage range of 36V to 57V, which is typical for PoE applications.

Q7: Does LTC4291IUF-1#TRPBF have built-in protection features? A7: Yes, LTC4291IUF-1#TRPBF has built-in protection features such as thermal shutdown, overcurrent detection, and fault detection to ensure safe operation.

Q8: Can LTC4291IUF-1#TRPBF be used in industrial environments? A8: Yes, LTC4291IUF-1#TRPBF is designed to operate in industrial environments with a wide temperature range and robust protection features.

Q9: Is LTC4291IUF-1#TRPBF compatible with other PoE standards? A9: Yes, LTC4291IUF-1#TRPBF is compatible with both IEEE 802.3af and IEEE 802.3at PoE standards, making it versatile for various PoE applications.

Q10: Are there any evaluation boards or reference designs available for LTC4291IUF-1#TRPBF? A10: Yes, Analog Devices provides evaluation boards and reference designs for LTC4291IUF-1#TRPBF, which can help developers quickly prototype and integrate the IC into their technical solutions.

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