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LT4295IUFD#PBF
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LT4295IUFD#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power over Ethernet (PoE) Controller

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Robust protection features

Package: QFN-32

Essence: The LT4295IUFD#PBF is a PoE controller designed to provide power and data transmission over Ethernet cables.

Packaging/Quantity: The LT4295IUFD#PBF is available in a QFN-32 package. It is typically sold in reels containing a specific quantity determined by the manufacturer.

Specifications

The LT4295IUFD#PBF has the following specifications:

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 3.3V to 12V
  • Maximum Output Current: 600mA
  • Quiescent Current: 10µA
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LT4295IUFD#PBF has a total of 32 pins. The pin configuration is as follows:

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

Functional Features

The LT4295IUFD#PBF offers the following functional features:

  • IEEE 802.3af/at compliant
  • Integrated power MOSFETs
  • Programmable current limit
  • Thermal shutdown protection
  • Short-circuit protection
  • Under-voltage lockout

Advantages and Disadvantages

Advantages: - High efficiency design - Wide input voltage range allows for versatile applications - Robust protection features ensure reliable operation - Integrated power MOSFETs simplify the design

Disadvantages: - Limited maximum output current of 600mA

Working Principles

The LT4295IUFD#PBF operates based on the Power over Ethernet (PoE) standard, which enables the transmission of both power and data over Ethernet cables. It integrates power MOSFETs to efficiently convert the input voltage into a regulated output voltage suitable for powering various devices.

The controller complies with the IEEE 802.3af/at standards, ensuring compatibility with PoE-enabled devices. It incorporates programmable current limit, thermal shutdown protection, short-circuit protection, and under-voltage lockout to safeguard against potential faults and ensure safe operation.

Detailed Application Field Plans

The LT4295IUFD#PBF is commonly used in the following application fields:

  1. IP cameras
  2. Wireless access points
  3. VoIP phones
  4. Network switches
  5. Industrial automation equipment

Its ability to provide power and data transmission over Ethernet cables makes it an ideal choice for these applications, eliminating the need for separate power cables and simplifying installation.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT4295IUFD#PBF include:

  1. LT4294IUFD#PBF
  2. LT4293IUFD#PBF
  3. LT4292IUFD#PBF
  4. LT4291IUFD#PBF

These models are also PoE controllers with comparable features and specifications, providing flexibility for different design requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LT4295IUFD#PBF en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of LT4295IUFD#PBF in technical solutions:

  1. Q: What is LT4295IUFD#PBF? A: LT4295IUFD#PBF is a specific model number for a Power over Ethernet (PoE) controller IC manufactured by Analog Devices.

  2. Q: What is the purpose of LT4295IUFD#PBF? A: The LT4295IUFD#PBF is designed to provide power and data connectivity to PoE-enabled devices, such as IP cameras, wireless access points, and VoIP phones.

  3. Q: What is the maximum power output of LT4295IUFD#PBF? A: LT4295IUFD#PBF can deliver up to 25.5 watts of power per port, complying with the IEEE 802.3af/at standards.

  4. Q: Can LT4295IUFD#PBF support multiple PoE ports? A: Yes, LT4295IUFD#PBF can support up to four independent PoE ports, allowing simultaneous power delivery to multiple devices.

  5. Q: Does LT4295IUFD#PBF require an external power supply? A: Yes, LT4295IUFD#PBF requires an external power supply to provide the necessary power for PoE operation.

  6. Q: What is the input voltage range supported by LT4295IUFD#PBF? A: LT4295IUFD#PBF supports an input voltage range of 36V to 57V, which is commonly used in PoE applications.

  7. Q: Is LT4295IUFD#PBF compatible with both 10/100Mbps and Gigabit Ethernet? A: Yes, LT4295IUFD#PBF is compatible with both 10/100Mbps and Gigabit Ethernet, providing flexibility for various network speeds.

  8. Q: Does LT4295IUFD#PBF have built-in protection features? A: Yes, LT4295IUFD#PBF incorporates various protection features like overcurrent, overvoltage, and thermal shutdown to ensure safe operation.

  9. Q: Can LT4295IUFD#PBF be used in industrial applications? A: Yes, LT4295IUFD#PBF is designed to operate reliably in industrial environments, with a wide operating temperature range and robust construction.

  10. Q: Are there any reference designs or application notes available for LT4295IUFD#PBF? A: Yes, Analog Devices provides reference designs and application notes that can help engineers implement LT4295IUFD#PBF in their technical solutions effectively.

Please note that the answers provided here are general and may vary depending on specific implementation requirements. It is always recommended to refer to the official documentation and datasheet for accurate information.