LT4294IDD#PBF
Product Overview
Category: Integrated Circuit (IC)
Use: Power over Ethernet (PoE) Controller
Characteristics: - High efficiency - Low power dissipation - Small form factor - Advanced power management features
Package: DFN-16 (Dual Flat No-Lead)
Essence: LT4294IDD#PBF is a PoE controller IC designed for use in Power Sourcing Equipment (PSE) applications. It provides advanced power management features and high efficiency, making it suitable for various PoE-enabled devices.
Packaging/Quantity: The LT4294IDD#PBF is available in a DFN-16 package and is typically sold in reels or tubes containing multiple units.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 3.3V to 60V
- Maximum Output Current: 600mA
- Operating Temperature Range: -40°C to 85°C
- Power Dissipation: 1.5W (typical)
- Control Interface: I2C
Detailed Pin Configuration
The LT4294IDD#PBF has a total of 16 pins. Here is the detailed pin configuration:
- VDD: Power supply input
- GND: Ground
- INT: Interrupt output
- FLT: Fault output
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
- NC: No connection
Functional Features
- IEEE 802.3af/at compliant
- Integrated power MOSFETs for efficient power conversion
- Programmable current limit and classification current
- Comprehensive fault protection features
- I2C interface for control and monitoring
Advantages and Disadvantages
Advantages: - High efficiency power conversion - Advanced power management features - Compact form factor - Comprehensive fault protection - Compliance with industry standards
Disadvantages: - Limited maximum output current (600mA) - Requires external components for complete PoE implementation
Working Principles
The LT4294IDD#PBF operates based on the IEEE 802.3af/at standard for Power over Ethernet. It receives power from an Ethernet cable and converts it into a regulated DC voltage suitable for powering various devices. The IC incorporates power MOSFETs for efficient power conversion and offers programmable current limit and classification current settings.
Detailed Application Field Plans
The LT4294IDD#PBF is commonly used in the following applications:
- IP Cameras: Provides power to IP cameras over Ethernet cables, eliminating the need for separate power supplies.
- Wireless Access Points: Powers wireless access points, enabling easy installation in remote locations without access to AC power outlets.
- VoIP Phones: Enables power delivery to Voice over IP (VoIP) phones, simplifying installation and reducing clutter.
- Network Switches: Used in network switches to provide power to connected PoE devices such as IP phones, cameras, and wireless access points.
Detailed and Complete Alternative Models
- LT4295IDD#PBF: Similar to LT4294IDD#PBF but with higher maximum output current (800mA).
- LT4296IDD#PBF: Offers additional features such as integrated surge protection and extended temperature range (-40°C to 125°C).
These alternative models provide similar functionality to the LT4294IDD#PBF but may have different specifications or additional features to suit specific application requirements.
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تکنیکی حل میں LT4294IDD#PBF کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں
Sure! Here are 10 common questions and answers related to the application of LT4294IDD#PBF in technical solutions:
Q: What is LT4294IDD#PBF? A: LT4294IDD#PBF is a specific model number for a power over Ethernet (PoE) controller IC manufactured by Analog Devices.
Q: What is the purpose of LT4294IDD#PBF? A: The purpose of LT4294IDD#PBF is to provide power and data connectivity to devices through an Ethernet cable, eliminating the need for separate power cables.
Q: What are the key features of LT4294IDD#PBF? A: Some key features of LT4294IDD#PBF include IEEE 802.3bt compliance, support for up to 90W of power delivery, advanced power management capabilities, and integrated protection features.
Q: What types of devices can be powered using LT4294IDD#PBF? A: LT4294IDD#PBF can power a wide range of devices, including IP cameras, wireless access points, VoIP phones, IoT devices, and other network-connected devices.
Q: How does LT4294IDD#PBF deliver power to devices? A: LT4294IDD#PBF uses Power over Ethernet (PoE) technology to deliver power over standard Ethernet cables. It follows the IEEE 802.3bt standard for high-power PoE.
Q: Can LT4294IDD#PBF be used in both indoor and outdoor applications? A: Yes, LT4294IDD#PBF can be used in both indoor and outdoor applications as long as proper environmental conditions and protection measures are taken.
Q: Is LT4294IDD#PBF compatible with other PoE standards? A: Yes, LT4294IDD#PBF is backward compatible with previous PoE standards such as IEEE 802.3af and IEEE 802.3at, allowing it to work with devices that support those standards.
Q: What are the input voltage requirements for LT4294IDD#PBF? A: LT4294IDD#PBF typically operates from a 44V to 57V input voltage range, which is commonly found in PoE-enabled network switches or midspans.
Q: Can LT4294IDD#PBF provide power to multiple devices simultaneously? A: Yes, LT4294IDD#PBF supports multiple ports, allowing it to provide power to multiple devices simultaneously, as long as the total power budget is not exceeded.
Q: Are there any design considerations when using LT4294IDD#PBF in a technical solution? A: Yes, some design considerations include proper thermal management, adhering to safety regulations, ensuring adequate power supply capacity, and following the manufacturer's guidelines for layout and component selection.
Please note that the answers provided here are general and may vary depending on specific application requirements and the manufacturer's documentation.