Linear Technology/Analog Devices
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LT3753MPFE#TRPBF
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LT3753MPFE#TRPBF

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Voltage, High Efficiency, Step-Down DC/DC Controller
  • Package: 28-Lead Plastic TSSOP
  • Essence: The LT3753MPFE#TRPBF is a versatile and efficient step-down DC/DC controller designed for high voltage applications.
  • Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 100V
  • Output Voltage Range: 0.8V to 60V
  • Switching Frequency: Up to 1MHz
  • Maximum Duty Cycle: 90%
  • Operating Temperature Range: -40°C to 125°C
  • Features: Adjustable Output Voltage, Synchronization Capability, Programmable Soft-Start, Overvoltage Protection, Thermal Shutdown

Pin Configuration

The LT3753MPFE#TRPBF has a 28-lead plastic TSSOP package with the following pin configuration:

  1. VCC
  2. GND
  3. FB
  4. SYNC
  5. SS
  6. RT
  7. CT
  8. SW
  9. SW
  10. SW
  11. SW
  12. SW
  13. SW
  14. SW
  15. SW
  16. SW
  17. SW
  18. SW
  19. SW
  20. SW
  21. SW
  22. SW
  23. SW
  24. SW
  25. SW
  26. SW
  27. SW
  28. SW

Functional Features

  • Adjustable Output Voltage: The LT3753MPFE#TRPBF allows users to adjust the output voltage according to their requirements.
  • Synchronization Capability: It can be synchronized with an external clock signal for better system integration.
  • Programmable Soft-Start: The soft-start feature allows for controlled startup and prevents excessive inrush current.
  • Overvoltage Protection: The IC includes built-in protection against overvoltage conditions, ensuring the safety of the connected components.
  • Thermal Shutdown: In case of excessive temperature, the LT3753MPFE#TRPBF automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - Wide input voltage range - High efficiency - Versatile and flexible design - Comprehensive protection features - Synchronization capability

Disadvantages: - Limited output voltage range (up to 60V) - Requires additional external components for operation

Working Principles

The LT3753MPFE#TRPBF is a step-down DC/DC controller that uses a high voltage buck topology. It regulates the output voltage by controlling the duty cycle of the switching transistor. The input voltage is stepped down to the desired output voltage using an inductor and a capacitor. The IC incorporates various control mechanisms to ensure stable and efficient power conversion.

Application Field Plans

The LT3753MPFE#TRPBF finds applications in various fields, including:

  1. Industrial Power Supplies
  2. Automotive Electronics
  3. Telecommunications Equipment
  4. LED Lighting Systems
  5. Renewable Energy Systems

Alternative Models

Here are some alternative models that offer similar functionality:

  1. LT3752MPFE#TRPBF
  2. LT3754MPFE#TRPBF
  3. LT3755MPFE#TRPBF
  4. LT3756MPFE#TRPBF
  5. LT3757MPFE#TRPBF

These models provide comparable features and can be considered as alternatives to the LT3753MPFE#TRPBF.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT3753MPFE#TRPBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT3753MPFE#TRPBF in technical solutions:

  1. Q: What is the LT3753MPFE#TRPBF? A: The LT3753MPFE#TRPBF is a high voltage, synchronous, current mode controller designed for driving N-channel power MOSFETs in boost, SEPIC, and flyback topologies.

  2. Q: What are the typical applications of the LT3753MPFE#TRPBF? A: The LT3753MPFE#TRPBF is commonly used in automotive, industrial, and telecom applications where high voltage conversion is required.

  3. Q: What is the input voltage range supported by the LT3753MPFE#TRPBF? A: The LT3753MPFE#TRPBF can support input voltages ranging from 4V to 100V.

  4. Q: What is the maximum switching frequency of the LT3753MPFE#TRPBF? A: The LT3753MPFE#TRPBF can operate at a maximum switching frequency of 500kHz.

  5. Q: Can the LT3753MPFE#TRPBF be used in both step-up and step-down applications? A: Yes, the LT3753MPFE#TRPBF can be used in both step-up (boost) and step-down (buck) applications.

  6. Q: Does the LT3753MPFE#TRPBF have built-in protection features? A: Yes, the LT3753MPFE#TRPBF includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  7. Q: What is the maximum output current that can be achieved with the LT3753MPFE#TRPBF? A: The maximum output current depends on the external components used in the application. Please refer to the datasheet and design guidelines for more information.

  8. Q: Can the LT3753MPFE#TRPBF operate in a wide temperature range? A: Yes, the LT3753MPFE#TRPBF is designed to operate in a temperature range of -40°C to 125°C.

  9. Q: Are there any evaluation boards or reference designs available for the LT3753MPFE#TRPBF? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs that can help in implementing the LT3753MPFE#TRPBF in various applications.

  10. Q: Where can I find more detailed information about the LT3753MPFE#TRPBF? A: You can find more detailed information, including the datasheet, application notes, and technical support, on the Analog Devices website or by contacting their customer support team.