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LTC4269CDKD-1#TRPBF
Product Overview
Category
The LTC4269CDKD-1#TRPBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.
Use
This product is primarily used for power sourcing equipment (PSE) applications in Power over Ethernet (PoE) systems. It provides a complete solution for implementing IEEE 802.3at Type 2 (PoE+) compliant PSE devices.
Characteristics
- The LTC4269CDKD-1#TRPBF is designed to deliver up to 25.5W of power per port.
- It supports both 10/100Mbps and Gigabit Ethernet data rates.
- This IC features an integrated detection signature, which allows it to identify powered devices (PDs) that are compatible with PoE standards.
- It incorporates various protection features such as overcurrent, overvoltage, and thermal shutdown.
Package
The LTC4269CDKD-1#TRPBF is available in a small form factor 12-lead DFN (Dual Flat No-Lead) package.
Essence
The essence of this product lies in its ability to provide efficient and reliable power delivery to PoE-enabled devices, ensuring seamless operation and compatibility with industry standards.
Packaging/Quantity
The LTC4269CDKD-1#TRPBF 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: 48V ± 5%
- Maximum Output Current: 550mA
- Operating Temperature Range: -40°C to 85°C
- Power Dissipation: 1.5W
Detailed Pin Configuration
The LTC4269CDKD-1#TRPBF features a 12-lead DFN package with the following pin configuration:
- VDD
- VDD
- GND
- GND
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
Functional Features
- Integrated detection signature for PoE compatibility.
- Programmable current limit and classification current.
- Automatic thermal shutdown protection.
- Overcurrent and overvoltage protection.
- Supports both 10/100Mbps and Gigabit Ethernet data rates.
Advantages and Disadvantages
Advantages
- Efficient power delivery for PoE+ applications.
- Comprehensive protection features ensure device safety.
- Compact form factor enables space-saving designs.
- Wide input voltage range allows for versatile applications.
Disadvantages
- Limited output current may not be suitable for high-power devices.
- Requires additional external components for complete PSE implementation.
Working Principles
The LTC4269CDKD-1#TRPBF operates as a PSE by providing power to connected PDs over Ethernet cables. It utilizes a combination of detection, classification, and power delivery mechanisms to ensure efficient and safe power transfer. The integrated detection signature allows the IC to identify compatible PDs, while programmable current limits and classification currents enable optimal power allocation. Protection features such as overcurrent and overvoltage safeguards protect both the PSE and connected devices.
Detailed Application Field Plans
The LTC4269CDKD-1#TRPBF finds extensive application in various PoE-enabled systems, including: - IP cameras and surveillance systems - Wireless access points - VoIP phones - Industrial automation equipment - Building management systems
Its ability to deliver reliable power and support different data rates makes it suitable for a wide range of applications requiring PoE functionality.
Detailed and Complete Alternative Models
- LTC4269CDKD-2#TRPBF: Similar to LTC4269CDKD-1#TRPBF, but with a higher maximum output current of 700mA.
- LTC4269CDKD-3#TRPBF: Similar to LTC4269CDKD-1#TRPBF, but with an extended operating temperature range of -40°C to 125°C.
- LTC4269CDKD-4#TRPBF: Similar to LTC4269CDKD-1#TRPBF, but with enhanced protection features and higher power dissipation capabilities.
These alternative models offer variations in terms of output current, operating temperature range, and additional features to cater to specific application requirements.
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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem LTC4269CDKD-1#TRPBF w rozwiązaniach technicznych
Sure! Here are 10 common questions and answers related to the application of LTC4269CDKD-1#TRPBF in technical solutions:
Q1: What is LTC4269CDKD-1#TRPBF? A1: LTC4269CDKD-1#TRPBF is a specific model number for a power sourcing equipment (PSE) controller IC 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#TRPBF? A2: The purpose of LTC4269CDKD-1#TRPBF is 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#TRPBF? A3: Some key features of LTC4269CDKD-1#TRPBF include IEEE 802.3af/at compliant PSE controller, integrated detection and classification, programmable current limit, and fault protection.
Q4: How does LTC4269CDKD-1#TRPBF detect and classify PoE devices? A4: LTC4269CDKD-1#TRPBF uses a proprietary algorithm to detect and classify PoE devices based on their power requirements. It can differentiate between standard and high-power devices.
Q5: Can LTC4269CDKD-1#TRPBF support both 802.3af and 802.3at standards? A5: Yes, LTC4269CDKD-1#TRPBF is compatible with both 802.3af and 802.3at standards, allowing it to power a wide range of PoE devices.
Q6: What is the maximum current limit that LTC4269CDKD-1#TRPBF can provide? A6: LTC4269CDKD-1#TRPBF can provide a programmable current limit of up to 350mA, which can be adjusted based on the power requirements of the connected PoE device.
Q7: Does LTC4269CDKD-1#TRPBF have any fault protection mechanisms? A7: Yes, LTC4269CDKD-1#TRPBF has built-in fault protection features such as overcurrent protection, short-circuit protection, and thermal shutdown to ensure safe operation.
Q8: Can LTC4269CDKD-1#TRPBF be used in both indoor and outdoor applications? A8: Yes, LTC4269CDKD-1#TRPBF can be used in both indoor and outdoor applications as long as proper environmental conditions are maintained.
Q9: Is LTC4269CDKD-1#TRPBF compatible with other PSE controller ICs? A9: LTC4269CDKD-1#TRPBF is designed to be compatible with other PSE controller ICs, allowing for easy integration into existing PoE systems.
Q10: Where can I find more information about LTC4269CDKD-1#TRPBF? A10: You can find more detailed information about LTC4269CDKD-1#TRPBF, including datasheets, application notes, and technical support, on the Analog Devices website or by contacting their customer support.