Linear Technology/QD Devices
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LTC4257IS8#PBF
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LTC4257IS8#PBF

Product Overview

Category

LTC4257IS8#PBF belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for power management and control in various electronic devices.

Characteristics

  • Integrated circuit with power management capabilities
  • Provides control and monitoring functions
  • Designed for efficient power delivery
  • Supports various power supply configurations

Package

LTC4257IS8#PBF comes in an 8-pin small outline integrated circuit (SOIC) package.

Essence

The essence of LTC4257IS8#PBF lies in its ability to efficiently manage and control power in electronic devices, ensuring optimal performance and reliability.

Packaging/Quantity

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

Specifications

  • Input Voltage Range: 2.9V to 5.5V
  • Output Voltage Range: 0V to 5.5V
  • Maximum Output Current: 3A
  • Operating Temperature Range: -40°C to 85°C
  • Power Dissipation: 1.25W

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. EN: Enable pin for controlling power output
  4. FLT: Fault indicator output
  5. SDA: Serial data input/output for communication
  6. SCL: Serial clock input for communication
  7. OUT: Power output
  8. REF: Reference voltage output

Functional Features

  • Power supply control and monitoring
  • Overcurrent protection
  • Thermal shutdown protection
  • Fault detection and indication
  • I2C communication interface for configuration and status monitoring

Advantages and Disadvantages

Advantages

  • Efficient power management and control
  • Comprehensive protection features
  • Flexible configuration options
  • I2C interface allows for easy integration and monitoring

Disadvantages

  • Limited output current capacity (up to 3A)
  • Restricted operating temperature range (-40°C to 85°C)

Working Principles

LTC4257IS8#PBF operates by receiving an input voltage within the specified range and regulating it to provide a stable output voltage. It incorporates various protection mechanisms to ensure safe operation, such as overcurrent and thermal shutdown protection. The I2C interface enables communication with external devices for configuration and status monitoring.

Detailed Application Field Plans

LTC4257IS8#PBF finds applications in a wide range of electronic devices, including but not limited to: - Power supplies - Industrial control systems - Telecommunications equipment - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  1. LTC4257CS6#TRMPBF: Similar functionality in a smaller 6-pin package.
  2. LTC4257HS8#PBF: Higher output current capacity of up to 5A.
  3. LTC4257IMS8#PBF: Offers additional features like adjustable current limit and power good indicator.

(Note: This is just a sample list of alternative models. Please refer to the manufacturer's documentation for a complete list.)

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von LTC4257IS8#PBF in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of LTC4257IS8#PBF in technical solutions:

  1. Q: What is LTC4257IS8#PBF? A: LTC4257IS8#PBF is a power sourcing equipment (PSE) controller designed for Power over Ethernet (PoE) applications.

  2. Q: What is the maximum power that LTC4257IS8#PBF can deliver? A: LTC4257IS8#PBF can deliver up to 25.5W of power per port.

  3. Q: Can LTC4257IS8#PBF support both IEEE 802.3af and IEEE 802.3at standards? A: Yes, LTC4257IS8#PBF supports both IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) standards.

  4. Q: How many ports can LTC4257IS8#PBF control? A: LTC4257IS8#PBF can control up to 8 PoE ports.

  5. Q: Does LTC4257IS8#PBF provide protection against overcurrent and short-circuit conditions? A: Yes, LTC4257IS8#PBF provides comprehensive protection against overcurrent and short-circuit conditions.

  6. Q: Can LTC4257IS8#PBF be used in high-temperature environments? A: Yes, LTC4257IS8#PBF is designed to operate in a wide temperature range, making it suitable for high-temperature environments.

  7. Q: Does LTC4257IS8#PBF support power management features such as power prioritization? A: Yes, LTC4257IS8#PBF supports power management features like power prioritization, allowing you to allocate power based on device requirements.

  8. Q: Can LTC4257IS8#PBF be used in both standalone and integrated PSE applications? A: Yes, LTC4257IS8#PBF can be used in both standalone PSE applications as well as integrated PSE solutions.

  9. Q: What is the input voltage range supported by LTC4257IS8#PBF? A: LTC4257IS8#PBF supports an input voltage range of 36V to 57V.

  10. Q: Is LTC4257IS8#PBF compatible with other PoE devices from different manufacturers? A: Yes, LTC4257IS8#PBF is designed to be compatible with other PoE devices that adhere to the IEEE 802.3af/at standards.