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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