LTC4258CGW#PBF
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics: High Efficiency, Low Power Consumption
- Package: 24-Lead SSOP (Shrink Small Outline Package)
- Essence: Power Sourcing Equipment (PSE) Controller
- Packaging/Quantity: Tape & Reel, 2500 units per reel
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage Range: 2.7V to 14V
- Operating Temperature Range: -40°C to +85°C
- Maximum Operating Frequency: 400kHz
- Quiescent Current: 1.5mA
Detailed Pin Configuration
The LTC4258CGW#PBF has a total of 24 pins. The pin configuration is as follows:
- VDD
- GND
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
- NC
Functional Features
- Supports IEEE 802.3af and 802.3at Standards
- Provides Power over Ethernet (PoE) functionality
- Enables power sourcing equipment control
- Offers high efficiency power conversion
- Low power consumption in standby mode
Advantages and Disadvantages
Advantages
- Compliance with industry standards
- Efficient power management
- Reliable performance
- Compact package size
- Wide input and output voltage range
Disadvantages
- Limited pin configuration options
- Higher cost compared to non-PoE power management solutions
Working Principles
The LTC4258CGW#PBF is a Power Sourcing Equipment (PSE) controller designed for Power over Ethernet (PoE) applications. It follows the IEEE 802.3af and 802.3at standards, allowing it to provide power to connected devices through an Ethernet cable.
The IC efficiently converts the input voltage from the power source into the required output voltage, ensuring reliable power delivery to the connected device. It also incorporates various protection features such as overcurrent and overvoltage protection to safeguard both the PSE and the powered device.
Detailed Application Field Plans
The LTC4258CGW#PBF is commonly used in various PoE applications, including:
- IP Cameras: Provides power to IP cameras, eliminating the need for separate power cables.
- Wireless Access Points: Enables power delivery to wireless access points, simplifying installation and reducing clutter.
- VoIP Phones: Powers VoIP phones, allowing for seamless communication without the need for additional power adapters.
- Network Switches: Facilitates PoE functionality in network switches, enabling power delivery to connected devices.
Detailed and Complete Alternative Models
- LTC4267CGW#PBF: Similar PSE controller with extended temperature range (-40°C to +125°C).
- LTC4259CGW#PBF: PSE controller with integrated power management features for higher power applications.
- LTC4260CGW#PBF: PSE controller with advanced fault detection and classification capabilities.
(Note: The above alternative models are provided for reference purposes and may have different specifications and features.)
This concludes the encyclopedia entry for LTC4258CGW#PBF, providing an overview of its product details, specifications, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.
قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق LTC4258CGW#PBF في الحلول التقنية
Sure! Here are 10 common questions and answers related to the application of LTC4258CGW#PBF in technical solutions:
Q: What is LTC4258CGW#PBF? A: LTC4258CGW#PBF 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.
Q: What is the purpose of LTC4258CGW#PBF? A: The LTC4258CGW#PBF is designed to provide power and control functions for PoE systems, allowing devices to receive power and data over a single Ethernet cable.
Q: How does LTC4258CGW#PBF work? A: LTC4258CGW#PBF integrates various features like detection, classification, and current limiting to ensure safe and efficient power delivery to PoE devices. It communicates with powered devices (PDs) to negotiate power requirements and monitor their status.
Q: What are the key features of LTC4258CGW#PBF? A: Some key features include IEEE 802.3af/at compliance, integrated detection/classification circuitry, programmable current limit, thermal shutdown protection, and fault reporting capabilities.
Q: Can LTC4258CGW#PBF be used in both 802.3af and 802.3at PoE systems? A: Yes, LTC4258CGW#PBF is compatible with both 802.3af (PoE) and 802.3at (PoE+) standards, making it suitable for a wide range of PoE applications.
Q: What is the maximum power that LTC4258CGW#PBF can deliver? A: The maximum power that LTC4258CGW#PBF can deliver depends on the power supply and the specific PoE standard being used. It supports up to 25.5W for PoE+ applications.
Q: Can LTC4258CGW#PBF be used in non-PoE applications? A: While LTC4258CGW#PBF is primarily designed for PoE applications, it may have other potential uses where power sourcing and control functions are required.
Q: What are the typical applications of LTC4258CGW#PBF? A: LTC4258CGW#PBF is commonly used in various PoE-enabled devices such as IP cameras, wireless access points, VoIP phones, and network switches.
Q: Does LTC4258CGW#PBF require any external components? A: Yes, LTC4258CGW#PBF requires some external components like resistors, capacitors, and transformers to complete the PoE system design.
Q: Where can I find more information about LTC4258CGW#PBF? A: You can refer to the datasheet and application notes provided by Analog Devices (formerly Linear Technology) for detailed information on LTC4258CGW#PBF, its specifications, and application guidelines.