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LTC4269CDKD-1#PBF
Product Overview
Category
The LTC4269CDKD-1#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 delivery of both data and power over a single Ethernet cable, eliminating the need for separate power cables.
Characteristics
- Integrated circuit for PoE applications
- Supports IEEE 802.3af/at standards
- Provides power classification and detection
- Offers advanced power management features
- Operates with low power consumption
- Compact and highly efficient design
Package
The LTC4269CDKD-1#PBF is available in a small form factor package, which ensures easy integration into various PoE-enabled devices. The package type is known as DFN (Dual Flat No-Lead), which provides excellent thermal performance and reliability.
Essence
The essence of LTC4269CDKD-1#PBF lies in its ability to efficiently manage power delivery in PoE systems. It incorporates advanced features that enable reliable and safe power transmission over Ethernet cables.
Packaging/Quantity
This product is typically supplied in tape and reel packaging, ensuring convenient handling during manufacturing processes. The exact quantity per reel may vary depending on the supplier's specifications.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 2.7V to 14V
- Maximum Output Current: 400mA
- Operating Temperature Range: -40°C to 85°C
- Power Dissipation: 1.5W (max)
- Compliance: IEEE 802.3af/at
Detailed Pin Configuration
The LTC4269CDKD-1#PBF features a total of 16 pins, each serving a specific function. The pin configuration is as follows:
- VDD - Power supply input
- VDDSENSE - Power supply sense input
- VOUT - Output voltage
- GND - Ground
- CLASS - Classification resistor connection
- DETECT - Detection resistor connection
- ISET - Current limit setting
- NC - No connect
- NC - No connect
- NC - No connect
- NC - No connect
- NC - No connect
- NC - No connect
- NC - No connect
- NC - No connect
- NC - No connect
Functional Features
The LTC4269CDKD-1#PBF offers several functional features that enhance its performance in PoE applications:
Power Classification: It accurately classifies the connected powered devices based on their power requirements, ensuring optimal power delivery.
Detection: The device detects the presence of a powered device and verifies its compatibility with the PSE, preventing damage to non-PoE devices.
Advanced Power Management: It provides various power management functions such as current limiting, thermal shutdown, and fault protection, ensuring safe operation under different conditions.
Low Power Consumption: The LTC4269CDKD-1#PBF operates with low power consumption, minimizing energy losses and maximizing efficiency.
Advantages and Disadvantages
Advantages
- Supports IEEE 802.3af/at standards, ensuring compatibility with a wide range of PoE devices.
- Compact and efficient design allows for easy integration into various PoE-enabled devices.
- Advanced power management features provide enhanced safety and reliability.
- Low power consumption contributes to energy efficiency.
Disadvantages
- Limited maximum output current (400mA) may not be suitable for high-power PoE applications.
- Operating temperature range (-40°C to 85°C) may restrict usage in extreme environments.
Working Principles
The LTC4269CDKD-1#PBF operates based on the principles of power sourcing equipment (PSE) in Power over Ethernet (PoE) systems. It utilizes a combination of power classification, detection, and advanced power management techniques to ensure efficient and safe power delivery to connected devices.
When a powered device is connected, the LTC4269CDKD-1#PBF first performs power classification by measuring the resistance across the CLASS pin. Based on this measurement, it determines the power requirements of the connected device.
Next, the device performs detection by monitoring the voltage across the DETECT pin. This allows it to verify the presence and compatibility of the connected device with the PSE.
Once the device is classified and detected, the LTC4269CDKD-1#PBF manages the power delivery by regulating the output voltage and current. It incorporates various protection mechanisms such as current limiting, thermal shutdown, and fault protection to ensure safe operation under different conditions.
Detailed Application Field Plans
The LTC4269CDKD-1#PBF
Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC4269CDKD-1#PBF v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LTC4269CDKD-1#PBF in technical solutions:
Q1: What is LTC4269CDKD-1#PBF? A1: LTC4269CDKD-1#PBF is a specific model number for a power sourcing equipment (PSE) controller chip manufactured by Linear Technology (now part of Analog Devices). It is used in Power over Ethernet (PoE) applications.
Q2: What is the purpose of LTC4269CDKD-1#PBF? A2: The LTC4269CDKD-1#PBF is designed to provide power and data connectivity to PoE devices, such as IP cameras, wireless access points, and VoIP phones, through an Ethernet cable.
Q3: What are the key features of LTC4269CDKD-1#PBF? A3: Some key features of LTC4269CDKD-1#PBF include IEEE 802.3af/at compliant PSE controller, integrated detection and classification, programmable current limit, and fault protection.
Q4: How does LTC4269CDKD-1#PBF detect and classify PoE devices? A4: LTC4269CDKD-1#PBF uses a proprietary algorithm to detect and classify connected devices based on their power requirements. This allows it to provide the appropriate amount of power to each device.
Q5: Can LTC4269CDKD-1#PBF support both 802.3af and 802.3at PoE standards? A5: Yes, LTC4269CDKD-1#PBF is compatible with both 802.3af and 802.3at PoE standards, making it versatile for various PoE applications.
Q6: What is the maximum power that LTC4269CDKD-1#PBF can deliver? A6: LTC4269CDKD-1#PBF can deliver up to 25.5W of power, which is the maximum allowed by the 802.3at standard.
Q7: Does LTC4269CDKD-1#PBF provide any fault protection? A7: Yes, LTC4269CDKD-1#PBF offers various fault protection features, including overcurrent protection, short-circuit protection, and thermal shutdown.
Q8: Can LTC4269CDKD-1#PBF be used in both indoor and outdoor applications? A8: Yes, LTC4269CDKD-1#PBF can be used in both indoor and outdoor applications as long as proper environmental conditions are maintained.
Q9: What is the typical operating voltage range for LTC4269CDKD-1#PBF? A9: The typical operating voltage range for LTC4269CDKD-1#PBF is between 36V and 57V.
Q10: Is LTC4269CDKD-1#PBF available in other package options? A10: Yes, LTC4269CDKD-1#PBF is available in different package options, such as DFN and MSOP, to accommodate different design requirements.
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 consult with the manufacturer for detailed information.