Linear Technology/Analog Devices
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LT3782AEFE

LT3782AEFE

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, wide input voltage range, adjustable output voltage, compact size
  • Package: 16-Lead TSSOP
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4V to 60V
  • Output Voltage Range: 1.21V to 50V
  • Switching Frequency: 100kHz to 1MHz
  • Maximum Output Current: 3A
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3782AEFE has a 16-Lead TSSOP package with the following pin configuration:

  1. VIN: Input Voltage
  2. GND: Ground
  3. FB: Feedback Pin
  4. VCC: Supply Voltage
  5. SYNC: Synchronization Pin
  6. SS/TR: Soft-Start/Tracking Pin
  7. RT/CLKOUT: Resistor Timing/Clock Output Pin
  8. CLKIN: Clock Input Pin
  9. SW: Switch Node
  10. SW: Switch Node
  11. SW: Switch Node
  12. SW: Switch Node
  13. SW: Switch Node
  14. SW: Switch Node
  15. SW: Switch Node
  16. SW: Switch Node

Functional Features

  • Wide input voltage range allows for versatile applications
  • Adjustable output voltage provides flexibility in power management
  • High efficiency ensures minimal power loss
  • Compact size enables space-saving designs
  • Synchronization capability for multi-phase operation
  • Soft-start and tracking features for controlled startup

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows for use in various power supply applications
  • Adjustable output voltage provides flexibility in system design
  • High efficiency reduces power consumption and heat dissipation
  • Compact size enables integration into space-constrained designs
  • Synchronization capability allows for multi-phase operation, improving overall performance
  • Soft-start and tracking features ensure controlled startup, preventing excessive current surges

Disadvantages

  • Limited maximum output current of 3A may not be suitable for high-power applications
  • Requires external components for proper operation, increasing system complexity

Working Principles

The LT3782AEFE is a voltage regulator IC that operates on the principle of pulse width modulation (PWM). It takes an input voltage within the range of 4V to 60V and converts it to a regulated output voltage between 1.21V and 50V. The switching frequency can be adjusted between 100kHz and 1MHz.

The IC uses an internal power switch to control the flow of current from the input to the output. By rapidly switching the power switch on and off, the IC regulates the output voltage by adjusting the duty cycle of the switch. This PWM technique allows for efficient power conversion with minimal power loss.

The LT3782AEFE also incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown, ensuring safe and reliable operation.

Detailed Application Field Plans

The LT3782AEFE is well-suited for a wide range of power management applications, including:

  1. Industrial equipment power supplies
  2. Automotive electronics
  3. LED lighting systems
  4. Battery charging circuits
  5. Distributed power systems
  6. Telecom infrastructure

Its adjustable output voltage, wide input voltage range, and high efficiency make it suitable for diverse applications where precise voltage regulation and efficient power conversion are required.

Detailed and Complete Alternative Models

  1. LT3782A-1
  2. LT3782A-2
  3. LT3782A-3
  4. LT3782A-4
  5. LT3782A-5

These alternative models offer similar functionality and specifications to the LT3782AEFE, providing options for different system requirements and design considerations.

(Note: The above alternative models are fictional and used for illustrative purposes only.)

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تکنیکی حل میں LT3782AEFE کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

Sure! Here are 10 common questions and answers related to the application of LT3782AEFE in technical solutions:

  1. Q: What is LT3782AEFE? A: LT3782AEFE is a specific model of a high-performance synchronous step-down DC/DC controller IC.

  2. Q: What are the key features of LT3782AEFE? A: Some key features include wide input voltage range, high efficiency, adjustable output voltage, and programmable switching frequency.

  3. Q: What is the typical application of LT3782AEFE? A: LT3782AEFE is commonly used in various power supply applications, such as industrial equipment, automotive systems, and telecommunications.

  4. Q: How does LT3782AEFE achieve high efficiency? A: LT3782AEFE utilizes advanced control techniques like synchronous rectification and current mode control to maximize efficiency.

  5. Q: Can LT3782AEFE handle different input voltages? A: Yes, LT3782AEFE has a wide input voltage range, typically from 4V to 60V, making it suitable for a variety of applications.

  6. Q: Is the output voltage of LT3782AEFE adjustable? A: Yes, the output voltage can be easily adjusted using external resistors or through a feedback pin.

  7. Q: Can I program the switching frequency of LT3782AEFE? A: Yes, the switching frequency can be programmed using an external resistor or synchronized to an external clock signal.

  8. Q: Does LT3782AEFE provide any protection features? A: Yes, LT3782AEFE offers various protection features like overvoltage protection, overcurrent protection, and thermal shutdown.

  9. Q: What is the maximum output current LT3782AEFE can handle? A: The maximum output current depends on the specific application and external components used with LT3782AEFE.

  10. Q: Are there any reference designs available for LT3782AEFE? A: Yes, Linear Technology (now part of Analog Devices) provides reference designs and application notes to help users implement LT3782AEFE in their projects.

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