Linear Technology/QD Devices
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LTC4449EDCB

LTC4449EDCB

Product Overview

Category

The LTC4449EDCB belongs to the category of high-speed, high-side N-channel MOSFET drivers.

Use

It is used for driving N-channel power MOSFETs in various applications such as DC/DC converters, motor drives, and other power switching circuits.

Characteristics

  • High-speed operation
  • Wide input voltage range
  • Low quiescent current
  • Overcurrent protection
  • Thermal shutdown

Package

The LTC4449EDCB is available in a 6-lead DFN package.

Essence

The essence of LTC4449EDCB lies in its ability to efficiently drive N-channel MOSFETs in high-speed and high-power applications.

Packaging/Quantity

The LTC4449EDCB is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 0V to 18V
  • Peak Output Current: 4A
  • Quiescent Current: 120µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC4449EDCB features a 6-lead DFN package with the following pin configuration: 1. VIN (Input Voltage) 2. GND (Ground) 3. VCC (Supply Voltage) 4. OUT (Output) 5. GATE (MOSFET Gate Drive) 6. SHDN (Shutdown)

Functional Features

  • High-speed operation enables efficient switching of power MOSFETs.
  • Wide input voltage range allows for versatile application in different power supply designs.
  • Overcurrent protection and thermal shutdown ensure robustness and reliability in demanding environments.

Advantages and Disadvantages

Advantages

  • High-speed operation
  • Wide input voltage range
  • Low quiescent current
  • Built-in protection features

Disadvantages

  • Limited peak output current compared to some competing models
  • Availability in only one package type

Working Principles

The LTC4449EDCB operates by receiving an input voltage signal and providing a high-current drive to the gate of an N-channel MOSFET. This enables efficient switching of the MOSFET, allowing for precise control of power flow in various applications.

Detailed Application Field Plans

The LTC4449EDCB is well-suited for use in the following applications: - DC/DC converters - Motor drives - Power switching circuits - Battery management systems

Detailed and Complete Alternative Models

Some alternative models to LTC4449EDCB include: - LTC4440 - LTC4442 - LTC4444 - MAX15062 - MIC5014

In conclusion, the LTC4449EDCB is a high-speed, high-side N-channel MOSFET driver with a wide input voltage range and built-in protection features. Its compact package and versatile application make it suitable for various power management and control systems.

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10 domande e risposte comuni relative all'applicazione di LTC4449EDCB nelle soluzioni tecniche

  1. What is LTC4449EDCB?

    • LTC4449EDCB is a high frequency, high voltage gate driver designed to drive N-channel MOSFETs in applications such as power supplies, motor drives, and Class D amplifiers.

  2. What is the maximum operating voltage of LTC4449EDCB?

    • The maximum operating voltage of LTC4449EDCB is 80V.

  3. What is the maximum peak output current of LTC4449EDCB?

    • The maximum peak output current of LTC4449EDCB is 4A.

  4. What are the key features of LTC4449EDCB?

    • Some key features of LTC4449EDCB include low shoot-through current, fast rise and fall times, and wide input voltage range.

  5. Can LTC4449EDCB be used in motor drive applications?

    • Yes, LTC4449EDCB is suitable for motor drive applications due to its high frequency operation and high voltage capability.

  6. What is the typical input threshold voltage of LTC4449EDCB?

    • The typical input threshold voltage of LTC4449EDCB is 2.5V.

  7. Is LTC4449EDCB compatible with PWM signals?

    • Yes, LTC4449EDCB is compatible with PWM signals and can be used in applications requiring pulse-width modulation.

  8. What is the recommended operating temperature range for LTC4449EDCB?

    • The recommended operating temperature range for LTC4449EDCB is -40°C to 125°C.

  9. Can LTC4449EDCB be used in high-side or low-side configurations?

    • Yes, LTC4449EDCB can be used in both high-side and low-side configurations, providing flexibility in various circuit designs.

  10. Are there any application notes or reference designs available for using LTC4449EDCB?

    • Yes, Linear Technology (now part of Analog Devices) provides application notes and reference designs for utilizing LTC4449EDCB in various technical solutions.