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LTC4268IDKD-1#PBF
Product Overview
Category
The LTC4268IDKD-1#PBF belongs to the category of integrated circuits (ICs) used in power management applications.
Use
This product is primarily used for power sourcing equipment (PSE) applications, specifically in Power over Ethernet (PoE) systems. It enables the efficient delivery of power and data over Ethernet cables.
Characteristics
- Integrated circuit designed for PoE applications
- Supports IEEE 802.3af/at standards
- Provides power management and control functions
- Enables power delivery up to 25.5W
- Offers advanced fault protection features
Package
The LTC4268IDKD-1#PBF is available in a small form factor package known as DFN-12 (Dual Flat No-Lead). This package ensures easy integration into various electronic devices.
Essence
The essence of LTC4268IDKD-1#PBF lies in its ability to efficiently manage power delivery in PoE systems, ensuring reliable operation of connected devices.
Packaging/Quantity
This product 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: 0V to 57V
- Maximum Output Current: 600mA
- Operating Temperature Range: -40°C to 85°C
- Control Interface: I2C/SMBus
Detailed Pin Configuration
The LTC4268IDKD-1#PBF has the following pin configuration:
- VDD - Power supply input
- GND - Ground reference
- INTVCC - Internal voltage regulator output
- SDA - Serial data input/output (I2C/SMBus)
- SCL - Serial clock input (I2C/SMBus)
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
- NC - No connection
Functional Features
- Integrated power management functions
- Automatic detection and classification of powered devices
- Programmable current limit and voltage regulation
- Comprehensive fault protection mechanisms
- I2C/SMBus interface for control and monitoring
Advantages and Disadvantages
Advantages
- Supports industry-standard PoE protocols
- Efficient power delivery with low power dissipation
- Advanced fault protection ensures system reliability
- Flexible programmability for various applications
- Compact package size allows for easy integration
Disadvantages
- Limited output current compared to some high-power PoE solutions
- Requires additional external components for complete PoE implementation
Working Principles
The LTC4268IDKD-1#PBF operates by detecting and classifying connected powered devices using the IEEE 802.3af/at standards. It then regulates the output voltage and current according to the device's requirements. The integrated fault protection features safeguard against overcurrent, overvoltage, and short-circuit conditions, ensuring safe operation.
Detailed Application Field Plans
The LTC4268IDKD-1#PBF finds application in a wide range of PoE systems, including: - IP cameras and surveillance systems - Wireless access points and routers - VoIP phones and communication devices - Industrial automation and control systems - IoT (Internet of Things) devices
Detailed and Complete Alternative Models
Some alternative models that offer similar functionality to LTC4268IDKD-1#PBF are: - MAX5940A/B/C/D from Maxim Integrated - TPS23861/TPS23881 from Texas Instruments - PD69200 from Power Integrations - LT4276/LT4275 from Analog Devices
These alternative models provide comparable power management features and are widely used in PoE applications.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC4268IDKD-1#PBF v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LTC4268IDKD-1#PBF in technical solutions:
Q1: What is LTC4268IDKD-1#PBF? A1: LTC4268IDKD-1#PBF is a specific model of power sourcing equipment (PSE) controller IC used in Power over Ethernet (PoE) applications.
Q2: What is the purpose of LTC4268IDKD-1#PBF? A2: The purpose of LTC4268IDKD-1#PBF is to provide power and data transmission capabilities over Ethernet cables, enabling devices to be powered and communicate through a single cable.
Q3: What are the key features of LTC4268IDKD-1#PBF? A3: Some key features of LTC4268IDKD-1#PBF include IEEE 802.3af/at compliant PoE support, integrated detection and classification circuitry, programmable current limit, and fault protection mechanisms.
Q4: How does LTC4268IDKD-1#PBF detect and classify powered devices? A4: LTC4268IDKD-1#PBF uses a combination of signature detection and classification algorithms to identify and categorize connected powered devices based on their power requirements.
Q5: Can LTC4268IDKD-1#PBF support both 10/100 Mbps and Gigabit Ethernet? A5: Yes, LTC4268IDKD-1#PBF is designed to support both 10/100 Mbps and Gigabit Ethernet speeds.
Q6: What is the maximum power that LTC4268IDKD-1#PBF can deliver to a powered device? A6: LTC4268IDKD-1#PBF can deliver up to 25.5 watts of power to a powered device, which is compliant with the IEEE 802.3af/at standards.
Q7: How does LTC4268IDKD-1#PBF protect against fault conditions? A7: LTC4268IDKD-1#PBF incorporates various fault protection mechanisms such as overcurrent, overvoltage, and thermal shutdown to safeguard the PSE and connected devices.
Q8: Can LTC4268IDKD-1#PBF be used in both indoor and outdoor applications? A8: Yes, LTC4268IDKD-1#PBF can be used in both indoor and outdoor applications as long as proper environmental considerations are taken into account.
Q9: What is the operating voltage range of LTC4268IDKD-1#PBF? A9: The operating voltage range of LTC4268IDKD-1#PBF is typically between 36V and 57V.
Q10: Are there any evaluation boards or reference designs available for LTC4268IDKD-1#PBF? A10: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs that can help users quickly prototype and implement LTC4268IDKD-1#PBF in their applications.
Please note that the answers provided here are general and may vary depending on specific application requirements and design considerations.