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LT4275BIMS#TRPBF
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LT4275BIMS#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power over Ethernet (PoE) Controller

Characteristics: - High efficiency - Low power dissipation - Small package size - Wide input voltage range - Advanced power management features

Package: MSOP-10

Essence: The LT4275BIMS#TRPBF is a PoE controller designed to provide power and data to Ethernet devices over a single CAT-5 cable.

Packaging/Quantity: The LT4275BIMS#TRPBF is available in tape and reel packaging, with 2500 units per reel.

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage: Programmable from 2.7V to 60V
  • Maximum Output Current: 400mA
  • Operating Temperature Range: -40°C to 85°C
  • Quiescent Current: 120µA
  • Efficiency: Up to 94%
  • Protection Features: Overcurrent, overvoltage, and thermal shutdown protection

Detailed Pin Configuration

The LT4275BIMS#TRPBF has the following 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. NC: No Connection
  9. NC: No Connection
  10. VIN: Input Voltage

Functional Features

  • IEEE 802.3af/at compliant
  • Automatic detection and classification of powered devices
  • Integrated power MOSFETs for efficient power delivery
  • Adjustable output voltage and current limit
  • Fast transient response for dynamic loads
  • Integrated signature resistor for device identification

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power dissipation - Wide input voltage range allows for compatibility with various PoE systems - Advanced power management features enhance system reliability - Small package size saves board space

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

Working Principles

The LT4275BIMS#TRPBF operates by utilizing the power available on the Ethernet cable to provide both power and data to connected devices. It follows the IEEE 802.3af/at standards for Power over Ethernet.

When a device is connected, the LT4275BIMS#TRPBF automatically detects and classifies it based on its power requirements. It then adjusts the output voltage and current limit accordingly. The integrated power MOSFETs efficiently deliver power to the device while maintaining high efficiency and low power dissipation.

Detailed Application Field Plans

The LT4275BIMS#TRPBF is commonly used in various applications, including: 1. IP cameras 2. Wireless access points 3. VoIP phones 4. Network switches 5. Industrial automation equipment

Detailed and Complete Alternative Models

  1. LT4276BIMS#TRPBF: Similar to LT4275BIMS#TRPBF, but with higher maximum output current (600mA).
  2. LT4277BIMS#TRPBF: Similar to LT4275BIMS#TRPBF, but with adjustable output voltage up to 80V.
  3. LT4278BIMS#TRPBF: Similar to LT4275BIMS#TRPBF, but with additional protection features such as surge protection.

These alternative models offer flexibility in terms of output current, output voltage, and additional protection features, catering to different application requirements.

In conclusion, the LT4275BIMS#TRPBF is a highly efficient PoE controller that provides power and data to Ethernet devices. Its small package size, wide input voltage range, and advanced power management features make it suitable for various applications in the field of Power over Ethernet.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LT4275BIMS#TRPBF i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LT4275BIMS#TRPBF in technical solutions:

  1. Q: What is LT4275BIMS#TRPBF? A: LT4275BIMS#TRPBF is a specific model number of a Power over Ethernet (PoE) controller IC manufactured by Analog Devices.

  2. Q: What is the purpose of LT4275BIMS#TRPBF? A: The LT4275BIMS#TRPBF is designed to provide power and data connectivity to PoE-enabled devices, such as IP cameras, wireless access points, and VoIP phones, through an Ethernet cable.

  3. Q: What is the maximum power output of LT4275BIMS#TRPBF? A: The LT4275BIMS#TRPBF can deliver up to 25.5 watts of power to the connected PoE device.

  4. Q: Can LT4275BIMS#TRPBF support both 802.3af and 802.3at PoE standards? A: Yes, LT4275BIMS#TRPBF is compatible with both 802.3af (PoE) and 802.3at (PoE+) standards, allowing it to work with a wide range of PoE devices.

  5. Q: What is the input voltage range for LT4275BIMS#TRPBF? A: The LT4275BIMS#TRPBF operates with an input voltage range of 36V to 57V.

  6. Q: Does LT4275BIMS#TRPBF have built-in protection features? A: Yes, LT4275BIMS#TRPBF includes various protection features like overcurrent protection, short-circuit protection, and thermal shutdown to ensure safe operation.

  7. Q: Can LT4275BIMS#TRPBF be used in industrial applications? A: Yes, LT4275BIMS#TRPBF is suitable for industrial applications as it can operate in a wide temperature range (-40°C to +85°C) and has robust protection features.

  8. Q: How is LT4275BIMS#TRPBF controlled? A: LT4275BIMS#TRPBF can be controlled through an I2C interface, allowing for configuration and monitoring of various parameters.

  9. Q: What are the typical applications of LT4275BIMS#TRPBF? A: LT4275BIMS#TRPBF is commonly used in applications such as IP surveillance systems, wireless access points, building automation, and IoT devices.

  10. Q: Is LT4275BIMS#TRPBF RoHS compliant? A: Yes, LT4275BIMS#TRPBF is RoHS (Restriction of Hazardous Substances) compliant, ensuring it meets environmental regulations.

Please note that the answers provided here are general and may vary depending on specific product documentation or application requirements.