Linear Technology/Analog Devices
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LTC4261CGN#PBF
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LTC4261CGN#PBF

Product Overview

Category

LTC4261CGN#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
  • High efficiency
  • Compact size

Package

LTC4261CGN#PBF comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of LTC4261CGN#PBF lies in its ability to efficiently manage power in various applications.

Packaging/Quantity

This product is typically packaged in reels and is available in quantities suitable for both small-scale and large-scale production.

Specifications

  • Input voltage range: 2.9V to 5.5V
  • Output voltage range: 0.8V to 3.3V
  • Maximum output current: 1A
  • Operating temperature range: -40°C to 85°C
  • Package type: SOIC-16

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. EN: Enable pin
  4. FB: Feedback pin
  5. VIN: Input voltage
  6. VOUT: Output voltage
  7. PGND: Power ground
  8. ISET: Current limit setting
  9. SS: Soft-start capacitor
  10. MODE: Mode selection pin
  11. CLK: Clock synchronization
  12. SYNC: Synchronization input
  13. FLT: Fault indicator
  14. INTVCC: Internal voltage reference
  15. NC: No connection
  16. NC: No connection

Functional Features

  • Efficient power management
  • Adjustable output voltage
  • Current limit protection
  • Soft-start capability
  • Fault indication

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption
  • Compact size allows for easy integration into various systems
  • Adjustable output voltage provides flexibility in different applications
  • Current limit protection ensures safe operation
  • Soft-start capability prevents excessive inrush current

Disadvantages

  • Limited maximum output current (1A)
  • Operating temperature range may not be suitable for extreme environments

Working Principles

LTC4261CGN#PBF operates by efficiently converting and regulating input voltage to the desired output voltage. It incorporates various control mechanisms such as feedback, current limit setting, and soft-start to ensure stable and reliable power management.

Detailed Application Field Plans

LTC4261CGN#PBF finds applications in a wide range of fields, including but not limited to: - Industrial automation - Telecommunications - Consumer electronics - Automotive systems - Medical devices

Detailed and Complete Alternative Models

  1. LTC4260CGN#PBF
  2. LTC4262CGN#PBF
  3. LTC4263CGN#PBF
  4. LTC4264CGN#PBF
  5. LTC4265CGN#PBF

These alternative models offer similar functionality and can be considered as substitutes for LTC4261CGN#PBF depending on specific requirements.

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10 domande e risposte comuni relative all'applicazione di LTC4261CGN#PBF nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of LTC4261CGN#PBF in technical solutions:

Q1: What is LTC4261CGN#PBF? A1: LTC4261CGN#PBF is a Power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It is used for managing power delivery and communication in PoE applications.

Q2: What are the key features of LTC4261CGN#PBF? A2: Some key features of LTC4261CGN#PBF include IEEE 802.3af/at compliant PoE, integrated switching regulator, programmable current limit, thermal shutdown protection, and support for various power sourcing equipment (PSE) types.

Q3: How does LTC4261CGN#PBF enable Power over Ethernet? A3: LTC4261CGN#PBF integrates the necessary circuitry to extract power from an Ethernet cable and provide it to the connected device. It supports both Type 1 (IEEE 802.3af) and Type 2 (IEEE 802.3at) PoE standards.

Q4: Can LTC4261CGN#PBF be used in non-PoE applications? A4: Yes, LTC4261CGN#PBF can also be used in non-PoE applications where power management and control are required. However, its primary purpose is for PoE implementations.

Q5: What is the maximum power that LTC4261CGN#PBF can deliver? A5: The maximum power that LTC4261CGN#PBF can deliver depends on the PSE it is connected to. It supports up to 25.5W for Type 2 PoE applications.

Q6: How is LTC4261CGN#PBF controlled and configured? A6: LTC4261CGN#PBF can be controlled and configured through its I2C interface. This allows for easy customization of various parameters such as current limit, power-on delay, and fault detection thresholds.

Q7: Can LTC4261CGN#PBF handle multiple PoE ports? A7: Yes, LTC4261CGN#PBF can handle multiple PoE ports by using multiple instances of the IC or by combining it with external power management circuitry.

Q8: What are the typical applications of LTC4261CGN#PBF? A8: LTC4261CGN#PBF is commonly used in applications such as IP cameras, wireless access points, VoIP phones, industrial automation, and other devices that require power and data over a single Ethernet cable.

Q9: Does LTC4261CGN#PBF provide protection against faults? A9: Yes, LTC4261CGN#PBF provides various fault protection mechanisms such as overcurrent protection, thermal shutdown, and undervoltage lockout to ensure safe operation and prevent damage to connected devices.

Q10: Is LTC4261CGN#PBF compatible with other PoE standards like 4PPoE? A10: No, LTC4261CGN#PBF is not compatible with newer PoE standards like 4PPoE (IEEE 802.3bt). It is designed for Type 1 and Type 2 PoE applications based on IEEE 802.3af/at standards.

Please note that the answers provided here are general and may vary depending on specific implementation requirements and datasheet specifications.