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LTC4261CUFD-2#PBF
Product Overview
Category
The LTC4261CUFD-2#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) in Power over Ethernet (PoE) systems. It enables the efficient transfer of power and data over a single Ethernet cable, eliminating the need for separate power cables.
Characteristics
- The LTC4261CUFD-2#PBF is a highly integrated PoE controller that supports both IEEE 802.3af and IEEE 802.3at standards.
- It features an advanced power management system, allowing for precise control and monitoring of power delivery.
- The device incorporates various protection mechanisms, such as overcurrent and overvoltage protection, ensuring safe operation.
- It offers a wide input voltage range, making it suitable for a variety of applications.
- The LTC4261CUFD-2#PBF is designed to operate in harsh environments, with enhanced reliability and durability.
Package
This product is available in a compact and industry-standard 16-lead QFN package, which facilitates easy integration into existing designs.
Essence
The essence of the LTC4261CUFD-2#PBF lies in its ability to efficiently manage power delivery in PoE systems, providing a reliable and convenient solution for powering network devices.
Packaging/Quantity
The LTC4261CUFD-2#PBF is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 44V to 57V
- Maximum Output Current: 600mA
- Operating Temperature Range: -40°C to 85°C
- Package Type: 16-Lead QFN
Detailed Pin Configuration
The LTC4261CUFD-2#PBF features the following pin configuration:
- VDD - Power supply input
- GND - Ground connection
- MDI - Ethernet media dependent interface
- MDO - Ethernet media dependent interface
- RXD - Receive data input
- TXD - Transmit data output
- INT - Interrupt output
- PSECTRL - PSE control input
- AUX - Auxiliary power output
- CLASS - Classification resistor input
- DETECT - Detection resistor input
- SENSE - Current sense input
- REF - Reference voltage output
- VOUT - Output voltage
- NC - No connect
- NC - No connect
Functional Features
- IEEE 802.3af/at Compliance: The LTC4261CUFD-2#PBF meets the requirements of both IEEE 802.3af and IEEE 802.3at standards, ensuring compatibility with a wide range of PoE devices.
- Advanced Power Management: The device offers various power management features, including programmable current limit, inrush current limiting, and thermal shutdown protection.
- Comprehensive Protection Mechanisms: It incorporates overcurrent, overvoltage, and short-circuit protection, safeguarding the system and connected devices from potential damage.
- Intelligent Classification: The LTC4261CUFD-2#PBF supports intelligent classification, allowing for efficient power allocation based on the specific requirements of connected devices.
Advantages and Disadvantages
Advantages
- High integration and compact package enable easy integration into existing designs.
- Wide input voltage range provides flexibility for different applications.
- Robust protection mechanisms ensure safe and reliable operation.
- Advanced power management features allow for precise control and monitoring.
Disadvantages
- Limited maximum output current may not be suitable for high-power devices.
- Requires careful consideration of system requirements and compatibility with connected devices.
Working Principles
The LTC4261CUFD-2#PBF operates by receiving power and data from an Ethernet cable through the MDI interface. It then processes the received power, regulates the output voltage, and delivers it to the connected device. The device incorporates various control and protection mechanisms to ensure efficient and safe power delivery.
Detailed Application Field Plans
The LTC4261CUFD-2#PBF finds applications in a wide range of fields, including:
- Network Switches: It can be used in network switches to provide power to connected devices such as IP phones, wireless access points, and security cameras.
- Industrial Automation: The product is suitable for powering various industrial automation equipment, including sensors, actuators, and controllers.
- Building Management Systems: It can be utilized in building management systems to power devices like HVAC controls, lighting systems, and access control systems.
- Telecommunications: The LTC4261CUFD-2#PBF is well-suited for telecommunications equipment, enabling the efficient powering of
Перечислите 10 распространенных вопросов и ответов, связанных с применением LTC4261CUFD-2#PBF в технических решениях.
Sure! Here are 10 common questions and answers related to the application of LTC4261CUFD-2#PBF in technical solutions:
Q1: What is LTC4261CUFD-2#PBF? A1: LTC4261CUFD-2#PBF is a specific model number for a Power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It provides power management and control functions for PoE applications.
Q2: What are the key features of LTC4261CUFD-2#PBF? A2: Some key features of LTC4261CUFD-2#PBF include IEEE 802.3af/at compliant PoE interface, integrated switching regulator, programmable current limit, thermal shutdown protection, and fault detection capabilities.
Q3: How can LTC4261CUFD-2#PBF be used in technical solutions? A3: LTC4261CUFD-2#PBF can be used in various technical solutions that require Power over Ethernet functionality, such as IP cameras, wireless access points, VoIP phones, and other network-connected devices.
Q4: What is the maximum power output supported by LTC4261CUFD-2#PBF? A4: LTC4261CUFD-2#PBF supports up to 25.5W of power output, which is compliant with the IEEE 802.3af/at standards.
Q5: Can LTC4261CUFD-2#PBF be used with both 10/100Mbps and Gigabit Ethernet networks? A5: Yes, LTC4261CUFD-2#PBF is compatible with both 10/100Mbps and Gigabit Ethernet networks.
Q6: Does LTC4261CUFD-2#PBF support power classification and detection? A6: Yes, LTC4261CUFD-2#PBF supports power classification and detection as per the IEEE 802.3af/at standards.
Q7: Can LTC4261CUFD-2#PBF be used in high-temperature environments? A7: Yes, LTC4261CUFD-2#PBF has a wide operating temperature range of -40°C to +85°C, making it suitable for use in high-temperature environments.
Q8: Does LTC4261CUFD-2#PBF provide protection against overcurrent and short-circuit conditions? A8: Yes, LTC4261CUFD-2#PBF includes built-in protection features such as programmable current limit and fault detection to protect against overcurrent and short-circuit conditions.
Q9: What is the input voltage range supported by LTC4261CUFD-2#PBF? A9: LTC4261CUFD-2#PBF supports an input voltage range of 36V to 57V, which is typical for PoE applications.
Q10: Are there any evaluation boards or reference designs available for LTC4261CUFD-2#PBF? A10: Yes, Analog Devices provides evaluation boards and reference designs for LTC4261CUFD-2#PBF, which can help in the development and testing of PoE solutions.
Please note that the answers provided here are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.