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LTC4252-1IMS8#PBF
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LTC4252-1IMS8#PBF

Product Overview

Category

LTC4252-1IMS8#PBF belongs to the category of integrated circuits (ICs) used in power management.

Use

This product is primarily used for power sourcing equipment (PSE) applications, specifically in Power over Ethernet (PoE) systems.

Characteristics

  • Integrated circuit designed for PoE applications
  • Supports IEEE 802.3af-compliant PSE implementations
  • Provides a complete solution for PSE controllers
  • Compact and versatile package design
  • High efficiency and reliability

Package

LTC4252-1IMS8#PBF is available in an IMS8 package, which stands for "Integrated Heat Sink 8-Lead Plastic Small Outline". This package offers excellent thermal performance and mechanical stability.

Essence

The essence of LTC4252-1IMS8#PBF lies in its ability to efficiently manage power in PoE systems, ensuring reliable operation of connected devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

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
  • Package Type: IMS8

Detailed Pin Configuration

  1. VDD: Power supply input
  2. GND: Ground reference
  3. VOUT: Output voltage
  4. NC: No connection
  5. NC: No connection
  6. NC: No connection
  7. NC: No connection
  8. NC: No connection

Functional Features

  • IEEE 802.3af-compliant PSE controller
  • Automatic detection and classification of powered devices
  • Programmable current limit and classification current
  • Integrated thermal shutdown protection
  • Fault detection and reporting capabilities

Advantages and Disadvantages

Advantages

  • Compact package design allows for space-efficient integration into PoE systems
  • High efficiency ensures minimal power loss during operation
  • Versatile functionality supports various PSE implementations
  • Reliable performance with integrated thermal shutdown protection

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications
  • Lack of pin configuration flexibility due to fixed pin assignments

Working Principles

LTC4252-1IMS8#PBF operates based on the IEEE 802.3af standard for PoE. It utilizes a combination of detection, classification, and power management techniques to efficiently deliver power to connected devices. The integrated circuit continuously monitors the connected device's power requirements and adjusts the power delivery accordingly.

Detailed Application Field Plans

LTC4252-1IMS8#PBF finds extensive application in various PoE systems, including: - IP cameras - Wireless access points - VoIP phones - Network switches - Industrial automation equipment

Detailed and Complete Alternative Models

  1. LTC4267-2IMS8#PBF: Similar to LTC4252-1IMS8#PBF, but with higher maximum output current (600mA)
  2. LTC4259A-1IMS8#PBF: Offers additional features such as auxiliary power control and programmable undervoltage lockout

These alternative models provide options for different power requirements and enhanced functionality within the same product category.

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技術ソリューションにおける LTC4252-1IMS8#PBF の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of LTC4252-1IMS8#PBF in technical solutions:

  1. Q: What is LTC4252-1IMS8#PBF? A: LTC4252-1IMS8#PBF is a power sourcing equipment (PSE) controller designed for Power over Ethernet (PoE) applications.

  2. Q: What is the maximum power that LTC4252-1IMS8#PBF can deliver? A: LTC4252-1IMS8#PBF can deliver up to 25.5 watts of power to a powered device (PD).

  3. Q: Can LTC4252-1IMS8#PBF be used with both 802.3af and 802.3at compliant devices? A: Yes, LTC4252-1IMS8#PBF is compatible with both 802.3af and 802.3at standards.

  4. Q: How many ports can LTC4252-1IMS8#PBF support? A: LTC4252-1IMS8#PBF can support up to 8 PoE ports.

  5. Q: Does LTC4252-1IMS8#PBF provide protection against short circuits and overloads? A: Yes, LTC4252-1IMS8#PBF includes built-in protection against short circuits and overloads.

  6. Q: Can LTC4252-1IMS8#PBF be used in industrial applications? A: Yes, LTC4252-1IMS8#PBF is suitable for use in industrial environments due to its wide operating temperature range.

  7. Q: Is LTC4252-1IMS8#PBF compatible with both 48V and 24V power supplies? A: Yes, LTC4252-1IMS8#PBF can be used with both 48V and 24V power supplies.

  8. Q: Can LTC4252-1IMS8#PBF provide power to non-PoE devices? A: No, LTC4252-1IMS8#PBF is specifically designed for PoE applications and cannot provide power to non-PoE devices.

  9. Q: Does LTC4252-1IMS8#PBF support power management features? A: Yes, LTC4252-1IMS8#PBF includes power management features such as power prioritization and power budgeting.

  10. Q: What is the package type of LTC4252-1IMS8#PBF? A: LTC4252-1IMS8#PBF is available in an 8-pin MSOP package.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.