LTC4290BIUJ#PBF
Product Overview
Category: Integrated Circuit (IC)
Use: Power over Ethernet (PoE) Controller
Characteristics: - Provides power and data to PoE-enabled devices - Supports IEEE 802.3af/at standards - Enables power management and control in PoE systems
Package: 32-Lead QFN (Quad Flat No-Lead)
Essence: The LTC4290BIUJ#PBF is a highly integrated PoE controller designed for use in Power Sourcing Equipment (PSE) applications.
Packaging/Quantity: The LTC4290BIUJ#PBF is available in a 32-Lead QFN package and is typically sold in reels of 250 units.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 44V to 57V
- Maximum Output Current: 600mA
- Operating Temperature Range: -40°C to 85°C
- Power Dissipation: 1.5W (typical)
- Control Interface: I2C/SMBus
Detailed Pin Configuration
The LTC4290BIUJ#PBF features a 32-Lead QFN package with the following pin configuration:
- VDD - Power Supply
- GND - Ground
- INT - Interrupt Output
- FLT - Fault Output
- EN - Enable Input
- SDA - I2C Data Line
- SCL - I2C Clock Line
- 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
- 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
- NC - No Connection
Functional Features
- Integrated IEEE 802.3af/at compliant PD interface
- Supports both 2-event and 4-event classification methods
- Provides programmable current limit and inrush current control
- Offers comprehensive fault protection features
- Supports I2C/SMBus communication for configuration and monitoring
Advantages and Disadvantages
Advantages: - High level of integration reduces external component count - Flexible power management options - Comprehensive fault protection enhances system reliability - Wide input voltage range allows for compatibility with various PoE systems
Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Requires I2C/SMBus interface for configuration and monitoring
Working Principles
The LTC4290BIUJ#PBF operates as a Power Sourcing Equipment (PSE) controller in a Power over Ethernet (PoE) system. It integrates the necessary circuitry to provide power and data to PoE-enabled devices, following the IEEE 802.3af/at standards. The device communicates with the Powered Device (PD) through an I2C/SMBus interface, allowing for configuration and monitoring of various parameters.
Detailed Application Field Plans
The LTC4290BIUJ#PBF is commonly used in the following application fields:
- IP Cameras
- Wireless Access Points
- VoIP Phones
- Network Switches
- Industrial Automation Systems
Detailed and Complete Alternative Models
- LTC4267-2 - PoE Controller with Integrated PD Interface
- LT4276A - Quad PSE Controller for Power over Ethernet
- LTC4279 - IEEE 802.3bt Compliant PoE++ PSE Controller
These alternative models offer similar functionality and can be considered as alternatives to the LTC4290BIUJ#PBF.
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기술 솔루션에 LTC4290BIUJ#PBF 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of LTC4290BIUJ#PBF in technical solutions:
Q: What is LTC4290BIUJ#PBF? A: LTC4290BIUJ#PBF is a specific model number for a Power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices).
Q: What is the purpose of LTC4290BIUJ#PBF? A: The LTC4290BIUJ#PBF is designed to provide power management and control functions for PoE applications, allowing devices to receive power and data over a single Ethernet cable.
Q: What are the key features of LTC4290BIUJ#PBF? A: Some key features include IEEE 802.3af/at compliant PD interface, integrated switching regulator, programmable current limit, thermal shutdown protection, and fault detection.
Q: How does LTC4290BIUJ#PBF work? A: LTC4290BIUJ#PBF acts as a Power Sourcing Equipment (PSE) controller, negotiating power requirements with Powered Devices (PDs) and managing the power delivery process.
Q: What are the typical applications of LTC4290BIUJ#PBF? A: LTC4290BIUJ#PBF is commonly used in various PoE-enabled devices such as IP phones, wireless access points, security cameras, and industrial automation equipment.
Q: Can LTC4290BIUJ#PBF support both IEEE 802.3af and IEEE 802.3at standards? A: Yes, LTC4290BIUJ#PBF is compatible with both IEEE 802.3af and IEEE 802.3at standards, allowing it to power a wide range of PDs.
Q: What is the maximum power that LTC4290BIUJ#PBF can deliver? A: The LTC4290BIUJ#PBF can deliver up to 25.5W of power per port, which is compliant with the IEEE 802.3at standard.
Q: Does LTC4290BIUJ#PBF support power management features? A: Yes, LTC4290BIUJ#PBF offers various power management features such as programmable current limit, thermal shutdown protection, and fault detection for efficient power delivery.
Q: Can LTC4290BIUJ#PBF be used in high-temperature environments? A: Yes, LTC4290BIUJ#PBF has a wide operating temperature range of -40°C to +85°C, making it suitable for use in harsh industrial environments.
Q: Is LTC4290BIUJ#PBF available in different package options? A: Yes, LTC4290BIUJ#PBF is available in a 32-pin QFN (Quad Flat No-Lead) package, which is compact and suitable for space-constrained applications.
Please note that the answers provided here are general and may vary depending on the specific requirements and implementation of LTC4290BIUJ#PBF in different technical solutions.