LT4276CIUFD#PBF

Product Overview

Category

LT4276CIUFD#PBF belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for power sourcing equipment (PSE) applications in Power over Ethernet (PoE) systems.

Characteristics

• LT4276CIUFD#PBF is a highly efficient PoE controller.
• It supports both IEEE 802.3af and IEEE 802.3at standards.
• The device integrates a PD interface and a DC/DC converter.
• It operates with high efficiency over a wide input voltage range.
• LT4276CIUFD#PBF offers various protection features, including overvoltage, overcurrent, and thermal shutdown.

Package

The LT4276CIUFD#PBF is available in a compact 38-lead QFN package.

Essence

The essence of LT4276CIUFD#PBF lies in its ability to provide power and data connectivity to Ethernet devices through a single cable, simplifying installation and reducing costs.

Packaging/Quantity

This product is typically packaged in reels containing 250 units.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 2.7V to 60V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 94%
• Quiescent Current: 1.5mA

Detailed Pin Configuration

The LT4276CIUFD#PBF has a total of 38 pins. Here is a detailed pin configuration:

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
33. VDD
34. VDD
35. VDD
36. VDD
37. VDD
38. VDD

Functional Features

• Integrated PD interface for easy PoE implementation.
• Supports both 802.3af and 802.3at standards, providing compatibility with a wide range of devices.
• High efficiency operation reduces power dissipation and improves overall system performance.
• Comprehensive protection features ensure safe and reliable operation.
• Flexible input voltage range allows for versatile applications.

Advantages and Disadvantages

Advantages

• Wide input voltage range enables compatibility with various power sources.
• High efficiency operation minimizes energy waste.
• Comprehensive protection features enhance system reliability.
• Compact package size facilitates space-constrained designs.

Disadvantages

• Limited maximum output current may not be suitable for high-power devices.
• Requires additional external components for complete PoE implementation.

Working Principles

LT4276CIUFD#PBF operates by receiving power and data signals from an Ethernet cable connected to a PSE. The integrated PD interface extracts the power and regulates it using the internal DC/DC converter. The regulated power is then supplied to the connected device while maintaining data communication through the same cable.

Detailed Application Field Plans

LT4276CIUFD#PBF finds applications in various fields, including: - IP cameras and surveillance systems - Wireless access points - VoIP phones - Industrial automation equipment - Building management systems

Detailed and Complete Alternative Models

1. LT4276A
2. LT4276B
3. LT4276C
4. LT4276D
5. LT4276E

These alternative models offer similar functionality and can be considered as alternatives to LT4276CIUFD#PBF based on specific application requirements.

In conclusion, LT4276CIUFD#PBF is a highly efficient PoE controller that provides power and data connectivity for Ethernet devices. Its wide input voltage range, comprehensive protection features, and compact package make it suitable for various applications in the field of power sourcing equipment.