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LTC4257CS8-1#PBF
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LTC4257CS8-1#PBF

Product Overview

Category

LTC4257CS8-1#PBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • Integrated circuit
  • Power management functionality
  • Small form factor
  • Low power consumption

Package

LTC4257CS8-1#PBF comes in an 8-pin small outline integrated circuit (SOIC) package.

Essence

The essence of LTC4257CS8-1#PBF lies in its ability to efficiently manage power in various electronic 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: 2.7V to 5.5V
  • Output Voltage Range: 0V to VCC
  • Maximum Output Current: 500mA
  • Operating Temperature Range: -40°C to 85°C
  • Quiescent Current: 50µA

Detailed Pin Configuration

  1. GATE: Gate control pin for external N-channel MOSFET.
  2. VIN: Input voltage pin.
  3. VCC: Supply voltage pin.
  4. FLT: Fault output pin.
  5. GND: Ground pin.
  6. SDA: I2C serial data input/output pin.
  7. SCL: I2C serial clock input pin.
  8. NC: No connection pin.

Functional Features

  • Power management and control
  • Fault detection and reporting
  • I2C communication interface
  • External MOSFET gate control

Advantages

  • Efficient power management
  • Compact size
  • Wide input voltage range
  • Low quiescent current
  • Fault detection for enhanced reliability

Disadvantages

  • Limited maximum output current (500mA)
  • Restricted operating temperature range (-40°C to 85°C)

Working Principles

LTC4257CS8-1#PBF operates by receiving an input voltage (VIN) and supplying regulated power to the load. It utilizes an external N-channel MOSFET controlled by the GATE pin to efficiently manage power flow. The device communicates with the system through the I2C interface, allowing for configuration and fault reporting.

Detailed Application Field Plans

LTC4257CS8-1#PBF finds applications in various fields, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial automation - Automotive electronics - IoT devices

Detailed and Complete Alternative Models

  1. LTC4257CS8: Similar to LTC4257CS8-1#PBF, but without fault detection functionality.
  2. LTC4257HS8: Higher temperature range version of LTC4257CS8-1#PBF (-40°C to 125°C).
  3. LTC4257IS8: Lower quiescent current version of LTC4257CS8-1#PBF (25µA).

These alternative models provide similar power management capabilities with slight variations in features and specifications.

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技術ソリューションにおける LTC4257CS8-1#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 LTC4257CS8-1#PBF in technical solutions:

Q1: What is LTC4257CS8-1#PBF? A1: LTC4257CS8-1#PBF is a specific model of power sourcing equipment (PSE) controller IC used in Power over Ethernet (PoE) applications.

Q2: What is the purpose of LTC4257CS8-1#PBF? A2: The purpose of LTC4257CS8-1#PBF is to provide power and control functions for PoE systems, allowing devices to receive power and data over a single Ethernet cable.

Q3: What are the key features of LTC4257CS8-1#PBF? A3: Some key features of LTC4257CS8-1#PBF include IEEE 802.3af compliance, integrated detection and classification, programmable current limit, and thermal shutdown protection.

Q4: How does LTC4257CS8-1#PBF detect and classify powered devices? A4: LTC4257CS8-1#PBF uses a proprietary detection algorithm to identify and classify powered devices based on their power requirements.

Q5: Can LTC4257CS8-1#PBF be used in both 10/100Mbps and Gigabit Ethernet applications? A5: Yes, LTC4257CS8-1#PBF is compatible with both 10/100Mbps and Gigabit Ethernet applications.

Q6: What is the maximum power that LTC4257CS8-1#PBF can deliver to a powered device? A6: LTC4257CS8-1#PBF can deliver up to 15.4W of power to a powered device, as per the IEEE 802.3af standard.

Q7: Can LTC4257CS8-1#PBF be used in high-power PoE applications? A7: No, LTC4257CS8-1#PBF is designed for low-power PoE applications and has a maximum power delivery of 15.4W.

Q8: What are the input voltage requirements for LTC4257CS8-1#PBF? A8: LTC4257CS8-1#PBF operates from a 36V to 57V input voltage range.

Q9: Does LTC4257CS8-1#PBF provide protection against overcurrent or short circuits? A9: Yes, LTC4257CS8-1#PBF includes programmable current limit and thermal shutdown protection to safeguard against overcurrent and short circuits.

Q10: Is LTC4257CS8-1#PBF available in other package options? A10: Yes, LTC4257CS8-1#PBF is available in an 8-pin SOIC package, but it may also be available in other package options depending on the manufacturer.

Please note that these answers are general and may vary based on specific application requirements and manufacturer specifications.