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LTC4260IGN#TRPBF
Product Overview
Category: Integrated Circuit (IC)
Use: Power Sourcing Equipment (PSE) Controller for Power over Ethernet (PoE) Applications
Characteristics: - High Efficiency - Low Power Dissipation - Small Footprint - Robust Protection Features
Package: 16-Lead SSOP (Shrink Small Outline Package)
Essence: The LTC4260IGN#TRPBF is a highly efficient PSE controller designed for PoE applications. It provides power to network devices through Ethernet cables, eliminating the need for separate power cables.
Packaging/Quantity: The LTC4260IGN#TRPBF is available in a 16-Lead SSOP package. It is typically sold in reels of 2500 units.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 44V to 57V
- Maximum Output Current: 400mA
- Operating Temperature Range: -40°C to 85°C
- Quiescent Current: 100μA (typical)
- Power Dissipation: 1.5W (maximum)
Detailed Pin Configuration
The LTC4260IGN#TRPBF features a 16-Lead SSOP package with the following pin configuration:
- VDD - Power Supply Input
- GND - Ground
- VEE - Negative Supply Voltage
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
- VPORT - Port Power Output
Functional Features
- IEEE 802.3af Compliant PSE Controller
- Integrated Detection and Classification Signature Resistor
- Programmable Current Limit
- Thermal Shutdown Protection
- Short-Circuit Protection
- Overvoltage Protection
- Undervoltage Lockout
- Fast Turn-On Time
Advantages and Disadvantages
Advantages: - High Efficiency Design - Robust Protection Features - Small Footprint Package - Easy Integration into PoE Systems - Wide Operating Temperature Range
Disadvantages: - Limited Maximum Output Current (400mA) - Requires External Components for Complete PoE Implementation
Working Principles
The LTC4260IGN#TRPBF operates as a PSE controller in PoE applications. It integrates the necessary functions to provide power to network devices over Ethernet cables. The device detects and classifies connected devices, adjusts the current limit accordingly, and provides the appropriate power output. It also incorporates various protection features to ensure safe operation.
Detailed Application Field Plans
The LTC4260IGN#TRPBF is widely used in various PoE applications, including: - IP Cameras - Wireless Access Points - VoIP Phones - Network Switches - Industrial Automation Equipment - Security Systems
Detailed and Complete Alternative Models
- LTC4261IGN#TRPBF
- LTC4262IGN#TRPBF
- LTC4263IGN#TRPBF
- LTC4264IGN#TRPBF
- LTC4265IGN#TRPBF
These alternative models offer similar functionality and are compatible with the LTC4260IGN#TRPBF. They may have slight differences in specifications or additional features, catering to specific application requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC4260IGN#TRPBF v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LTC4260IGN#TRPBF in technical solutions:
Q: What is LTC4260IGN#TRPBF? A: LTC4260IGN#TRPBF 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.
Q: What are the key features of LTC4260IGN#TRPBF? A: The key features of LTC4260IGN#TRPBF include IEEE 802.3af/at compliant PoE PD interface, integrated DC-DC converter controller, programmable current limit, thermal shutdown protection, and fault detection capabilities.
Q: How does LTC4260IGN#TRPBF work in a PoE system? A: LTC4260IGN#TRPBF acts as a Powered Device (PD) in a PoE system. It receives power and data from an Ethernet cable connected to a Power Sourcing Equipment (PSE), such as a PoE switch or injector. It then converts the received power to regulated voltages and provides them to the target device.
Q: Can LTC4260IGN#TRPBF support both IEEE 802.3af and IEEE 802.3at standards? A: Yes, LTC4260IGN#TRPBF is designed to be compatible with both IEEE 802.3af and IEEE 802.3at PoE standards, allowing it to work with various PoE equipment.
Q: What is the maximum power that LTC4260IGN#TRPBF can handle? A: LTC4260IGN#TRPBF can handle up to 25.5W of power, which is the maximum power defined by the IEEE 802.3at standard.
Q: Can LTC4260IGN#TRPBF be used in non-PoE applications? A: Yes, LTC4260IGN#TRPBF can also be used in non-PoE applications as a general-purpose power management and control IC.
Q: Does LTC4260IGN#TRPBF support Power Good (PG) indication? A: Yes, LTC4260IGN#TRPBF provides a Power Good (PG) signal that indicates the presence of valid power at its output.
Q: What are the typical input and output voltage ranges for LTC4260IGN#TRPBF? A: The typical input voltage range is 36V to 57V, which is compliant with PoE standards. The output voltage range can be programmed between 1.8V and 12V.
Q: Is LTC4260IGN#TRPBF suitable for high-temperature environments? A: Yes, LTC4260IGN#TRPBF has a wide operating temperature range of -40°C to 85°C, making it suitable for various industrial and outdoor applications.
Q: Are there any evaluation boards or reference designs available for LTC4260IGN#TRPBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LTC4260IGN#TRPBF, which can help developers quickly prototype and integrate the IC into their systems.
Please note that the answers provided here are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.