Linear Technology/Analog Devices
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LT3752MPFE

LT3752MPFE

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Voltage, High Efficiency, Wide Input Voltage Range
  • Package: 28-Lead Plastic TSSOP
  • Essence: Step-Down DC/DC Controller
  • Packaging/Quantity: Tube/25 pieces per tube

Specifications

The LT3752MPFE is a high voltage step-down DC/DC controller designed for power management applications. It operates over a wide input voltage range and provides high efficiency conversion. The device comes in a 28-lead plastic TSSOP package.

Detailed Pin Configuration

The LT3752MPFE features 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: Oscillator Resistor/Timing Capacitor Pin
  8. COMP: Compensation Pin
  9. ITH: Current Sense Threshold Pin
  10. SW: Switch Node Pin
  11. PGND: Power Ground
  12. VREF: Reference Voltage Output
  13. VFB: Feedback Voltage Output
  14. VSENSE: Current Sense Voltage Output
  15. AGND: Analog Ground
  16. CLKIN: Clock Input
  17. CLKOUT: Clock Output
  18. SS/TR: Soft-Start/Tracking Pin
  19. MODE: Mode Selection Pin
  20. UVLO: Undervoltage Lockout Pin
  21. OVLO: Overvoltage Lockout Pin
  22. OCSET: Overcurrent Set Pin
  23. SS/TR: Soft-Start/Tracking Pin
  24. SS/TR: Soft-Start/Tracking Pin
  25. SS/TR: Soft-Start/Tracking Pin
  26. SS/TR: Soft-Start/Tracking Pin
  27. SS/TR: Soft-Start/Tracking Pin
  28. SS/TR: Soft-Start/Tracking Pin

Functional Features

The LT3752MPFE offers the following functional features:

  • High voltage step-down DC/DC conversion
  • Wide input voltage range
  • High efficiency operation
  • Synchronization capability
  • Soft-start and tracking functionality
  • Overvoltage and undervoltage lockout protection
  • Overcurrent protection

Advantages and Disadvantages

Advantages of the LT3752MPFE include:

  • High voltage capability
  • Wide input voltage range
  • High efficiency conversion
  • Synchronization capability
  • Comprehensive protection features

Disadvantages of the LT3752MPFE include:

  • Limited package options
  • Complex pin configuration

Working Principles

The LT3752MPFE operates as a step-down DC/DC controller by regulating the output voltage based on the feedback received from the FB pin. It utilizes a high voltage conversion technique to efficiently convert the input voltage to the desired output voltage. The device incorporates various protection mechanisms to ensure safe and reliable operation.

Detailed Application Field Plans

The LT3752MPFE is suitable for a wide range of power management applications, including but not limited to:

  • Industrial power supplies
  • Automotive electronics
  • Telecommunications equipment
  • LED lighting systems
  • Battery charging circuits

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3752MPFE are:

  1. LT3752M: Similar specifications and features, different package option (36-Lead Plastic SSOP)
  2. LT3752H: Higher voltage rating, wider input voltage range, similar pin configuration
  3. LT3752L: Lower voltage rating, narrower input voltage range, similar pin configuration

These alternative models can be considered based on specific application requirements and design constraints.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LT3752MPFE en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of LT3752MPFE in technical solutions:

  1. Q: What is the LT3752MPFE? A: The LT3752MPFE is a high voltage, high efficiency synchronous step-down DC/DC controller.

  2. Q: What is the input voltage range of the LT3752MPFE? A: The LT3752MPFE can operate with an input voltage range from 4V to 60V.

  3. Q: What is the output voltage range of the LT3752MPFE? A: The LT3752MPFE can generate output voltages as low as 0.8V and as high as 55V.

  4. Q: What is the maximum output current of the LT3752MPFE? A: The LT3752MPFE can deliver up to 20A of continuous output current.

  5. Q: Can the LT3752MPFE be used in automotive applications? A: Yes, the LT3752MPFE is suitable for automotive applications as it can handle wide input voltage variations.

  6. Q: Does the LT3752MPFE have built-in protection features? A: Yes, the LT3752MPFE includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  7. Q: Can the LT3752MPFE be synchronized to an external clock? A: Yes, the LT3752MPFE has a synchronization pin that allows it to be synchronized to an external clock signal.

  8. Q: Is the LT3752MPFE capable of operating in a wide temperature range? A: Yes, the LT3752MPFE can operate in a temperature range from -40°C to 125°C.

  9. Q: Can the LT3752MPFE be used in battery charging applications? A: Yes, the LT3752MPFE can be used for battery charging applications as it supports constant voltage and constant current modes.

  10. Q: Does the LT3752MPFE require any external compensation components? A: No, the LT3752MPFE is internally compensated and does not require any external compensation components.

Please note that these answers are general and may vary depending on specific application requirements.