LT4275BHDD#PBF

Product Overview

Category

The LT4275BHDD#PBF belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used for power sourcing equipment (PSE) applications, where it provides a complete solution for Power over Ethernet (PoE) systems.

Characteristics

• Integrated circuit for power management
• Designed for PoE systems
• High efficiency and reliability
• Compact package size
• Wide input voltage range
• Supports various power levels

Package

The LT4275BHDD#PBF is available in a small form factor package, allowing for easy integration into different system designs. It is offered in a 12-pin DFN (Dual Flat No-Lead) package.

Essence

The essence of the LT4275BHDD#PBF lies in its ability to efficiently manage power in PoE systems, providing reliable power delivery to connected devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 3.3V to 60V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 95%
• Protection Features: Overcurrent, Overvoltage, and Thermal Shutdown

Detailed Pin Configuration

1. VOUT: Output Voltage
2. GND: Ground
3. NC: No Connection
4. NC: No Connection
5. NC: No Connection
6. NC: No Connection
7. NC: No Connection
8. VIN: Input Voltage
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection

Functional Features

• Integrated power management solution for PoE systems
• Supports both IEEE 802.3af and IEEE 802.3at standards
• Automatic detection and classification of connected devices
• Efficient power conversion with low power dissipation
• Robust protection features for safe operation

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption
• Wide input voltage range allows for compatibility with various power sources
• Compact package size enables easy integration into different system designs
• Robust protection features ensure safe operation

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Lack of detailed pin functionality in the datasheet can make initial setup challenging

Working Principles

The LT4275BHDD#PBF operates based on the principles of power management and PoE technology. It receives power from an external power source and efficiently converts it to the desired output voltage, which is then delivered to connected devices through Ethernet cables.

Detailed Application Field Plans

The LT4275BHDD#PBF finds applications in a wide range of fields, including: 1. IP cameras and surveillance systems 2. Wireless access points 3. VoIP phones 4. Industrial automation systems 5. Building management systems

Detailed and Complete Alternative Models

1. LT4276BHDD#PBF: Similar to LT4275BHDD#PBF but with higher maximum output current (800mA).
2. LT4277BHDD#PBF: Enhanced version with additional protection features and extended temperature range.
3. LT4278BHDD#PBF: Higher power variant with increased output voltage range (up to 80V).

These alternative models offer flexibility in choosing the most suitable solution based on specific application requirements.

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