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L4978D013TR
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L4978D013TR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High voltage, high current, low dropout voltage regulator
  • Package: TO-220
  • Essence: Voltage regulator with built-in protection features
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.75V to 60V
  • Output Voltage Range: 1.2V to 57V
  • Output Current: Up to 3A
  • Dropout Voltage: 1.5V at 3A
  • Quiescent Current: 10mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4978D013TR IC has the following pin configuration:

  1. GND: Ground reference for the IC.
  2. Vout: Output voltage.
  3. Vin: Input voltage.
  4. Enable: Control pin to enable or disable the regulator.
  5. Sense: Connection for remote sensing of output voltage.
  6. Vref: Reference voltage output.
  7. Feedback: Feedback pin for regulating the output voltage.
  8. Compensation: External compensation pin for stability.

Functional Features

  • Built-in protection features such as thermal shutdown, overcurrent protection, and short-circuit protection.
  • Wide input voltage range allows for versatile applications.
  • Low dropout voltage ensures efficient power conversion.
  • Remote sensing capability for accurate voltage regulation.
  • Adjustable output voltage through external resistors.
  • Fast transient response for sudden load changes.

Advantages and Disadvantages

Advantages: - High voltage and current handling capabilities. - Wide input voltage range. - Built-in protection features enhance reliability. - Remote sensing for precise voltage regulation. - Adjustable output voltage.

Disadvantages: - Quiescent current of 10mA may be relatively high for low-power applications. - TO-220 package may require additional heat sinking for high power dissipation.

Working Principles

The L4978D013TR is a voltage regulator that operates by maintaining a stable output voltage regardless of variations in the input voltage or load conditions. It achieves this through a feedback mechanism that compares the actual output voltage with a reference voltage and adjusts the internal circuitry accordingly. The regulator also incorporates protection features to safeguard against thermal overload, excessive current, and short circuits.

Detailed Application Field Plans

The L4978D013TR is commonly used in various applications, including:

  1. Industrial power supplies
  2. Automotive electronics
  3. Telecommunications equipment
  4. Audio amplifiers
  5. Battery charging systems
  6. LED lighting

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the L4978D013TR are:

  1. LM317: Adjustable voltage regulator with similar characteristics.
  2. LT1083: High-current, adjustable linear regulator.
  3. TPS7A47: Low-dropout voltage regulator with integrated protection features.
  4. LM1117: Low dropout voltage regulator with fixed output voltage options.

These alternative models offer similar functionality and can be suitable replacements depending on specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de L4978D013TR en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of L4978D013TR in technical solutions:

  1. Q: What is L4978D013TR? A: L4978D013TR is a specific model of integrated circuit (IC) used for power management applications.

  2. Q: What are the main features of L4978D013TR? A: The main features of L4978D013TR include high efficiency, low standby power consumption, overvoltage protection, and thermal shutdown.

  3. Q: What is the typical input voltage range for L4978D013TR? A: The typical input voltage range for L4978D013TR is between 4.5V and 60V.

  4. Q: Can L4978D013TR handle high current loads? A: Yes, L4978D013TR has a high current capability and can handle loads up to several amps.

  5. Q: How does L4978D013TR achieve high efficiency? A: L4978D013TR utilizes a synchronous rectification technique that minimizes power losses and improves overall efficiency.

  6. Q: Is L4978D013TR suitable for battery-powered applications? A: Yes, L4978D013TR is designed to operate efficiently in battery-powered applications due to its low standby power consumption.

  7. Q: Does L4978D013TR have built-in protection features? A: Yes, L4978D013TR incorporates overvoltage protection, thermal shutdown, and current limit protection to ensure safe operation.

  8. Q: Can L4978D013TR be used in automotive applications? A: Yes, L4978D013TR is suitable for automotive applications as it meets the necessary requirements for automotive electronics.

  9. Q: What is the operating temperature range of L4978D013TR? A: The operating temperature range of L4978D013TR is typically between -40°C and 125°C.

  10. Q: Are there any application notes or reference designs available for L4978D013TR? A: Yes, the manufacturer provides application notes and reference designs that can help in implementing L4978D013TR in various technical solutions.

Please note that these answers are general and may vary depending on specific use cases and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.