LTC4278IDKD#TRPBF
Product Overview
Category: Integrated Circuit (IC)
Use: Power over Ethernet (PoE) Controller
Characteristics: - Provides power and data to PoE-enabled devices - Supports IEEE 802.3af/at/bt standards - Enables power sourcing equipment (PSE) functionality - Offers advanced power management features
Package: DFN-12 (3mm x 4mm)
Essence: The LTC4278IDKD#TRPBF is a highly integrated PoE controller designed for use in various applications requiring power and data transmission over Ethernet cables.
Packaging/Quantity: Tape & Reel, 2500 units per reel
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 2.7V to 14V
- Maximum Output Current: 1.7A
- Operating Temperature Range: -40°C to 85°C
- Power Dissipation: 1.5W
- Control Interface: I2C
Pin Configuration
The LTC4278IDKD#TRPBF features a 12-pin DFN package with the following pin configuration:
- VOUT
- GND
- SDA
- SCL
- INT
- NC
- NC
- NC
- NC
- NC
- NC
- VIN
Functional Features
- Advanced Power Management: The LTC4278IDKD#TRPBF offers various power management features such as programmable current limit, thermal shutdown, and input undervoltage lockout.
- Robust Protection: It provides comprehensive protection against fault conditions like overcurrent, overvoltage, and short-circuit events.
- I2C Interface: The device can be easily controlled and monitored through the I2C interface, allowing for flexible configuration and status reporting.
Advantages and Disadvantages
Advantages: - High integration reduces external component count - Wide input voltage range enables compatibility with different power sources - Supports multiple PoE standards for enhanced flexibility - Advanced power management features ensure safe and efficient operation
Disadvantages: - Limited output current may not be suitable for high-power applications - Requires additional external components for complete PoE implementation
Working Principles
The LTC4278IDKD#TRPBF operates as a Power Sourcing Equipment (PSE) in a Power over Ethernet (PoE) system. It receives power from an external power source and delivers it to PoE-enabled devices over Ethernet cables. The device incorporates various control and protection mechanisms to ensure safe and reliable power transmission.
Detailed Application Field Plans
The LTC4278IDKD#TRPBF is widely used in applications requiring PoE functionality, including: - IP cameras and surveillance systems - Wireless access points - VoIP phones - Industrial automation equipment - Building management systems
Alternative Models
- LTC4274: Similar PoE controller with lower output current capability.
- LTC4269: PoE controller with extended temperature range and additional diagnostic features.
- LTC4275: Higher power PoE controller supporting IEEE 802.3bt standard.
These alternative models offer similar functionality but may have different specifications or package options.
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기술 솔루션에 LTC4278IDKD#TRPBF 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of LTC4278IDKD#TRPBF in technical solutions:
Q: What is LTC4278IDKD#TRPBF? A: LTC4278IDKD#TRPBF is a specific model number of a Power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It is used for implementing PoE functionality in various technical solutions.
Q: What is Power over Ethernet (PoE)? A: Power over Ethernet (PoE) is a technology that allows both power and data to be transmitted over a single Ethernet cable, eliminating the need for separate power cables in certain applications.
Q: What are the key features of LTC4278IDKD#TRPBF? A: Some key features of LTC4278IDKD#TRPBF include IEEE 802.3af/at/bt compatibility, integrated switching regulator, support for multiple PD classes, advanced power management features, and fault protection mechanisms.
Q: How can LTC4278IDKD#TRPBF be used in technical solutions? A: LTC4278IDKD#TRPBF can be used as a PoE controller in various applications such as IP cameras, wireless access points, VoIP phones, industrial automation systems, and IoT devices, where power and data transmission over Ethernet is required.
Q: What is the maximum power delivery capability of LTC4278IDKD#TRPBF? A: LTC4278IDKD#TRPBF supports up to 90W of power delivery, making it suitable for high-power PoE applications.
Q: Does LTC4278IDKD#TRPBF support PoE standards other than IEEE 802.3af/at/bt? A: No, LTC4278IDKD#TRPBF is specifically designed to support IEEE 802.3af/at/bt PoE standards.
Q: Can LTC4278IDKD#TRPBF be used in both powered device (PD) and power sourcing equipment (PSE) applications? A: Yes, LTC4278IDKD#TRPBF can be used in both PD and PSE applications, providing flexibility in system design.
Q: What are the protection mechanisms provided by LTC4278IDKD#TRPBF? A: LTC4278IDKD#TRPBF offers various protection features such as overcurrent protection, overvoltage protection, undervoltage lockout, thermal shutdown, and fault detection for safe and reliable operation.
Q: Does LTC4278IDKD#TRPBF require external components for operation? A: Yes, LTC4278IDKD#TRPBF requires external components such as MOSFETs, transformers, and capacitors for proper operation in a PoE system.
Q: Where can I find more information about LTC4278IDKD#TRPBF and its application in technical solutions? A: You can refer to the datasheet and application notes provided by Analog Devices or visit their official website for detailed information on LTC4278IDKD#TRPBF and its application in technical solutions.
Please note that the answers provided here are general and may vary depending on specific implementation requirements. It is always recommended to consult the datasheet and relevant documentation for accurate and up-to-date information.