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L4979D013TR
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L4979D013TR

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 packaging, 2500 units per reel

Specifications

  • Input Voltage Range: 4.75V to 40V
  • Output Voltage Range: 2.5V to 37V
  • Output Current: Up to 1.5A
  • Dropout Voltage: 1.3V typical at 1A load
  • Quiescent Current: 10mA typical
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4979D013TR IC has the following pin configuration:

  1. GND: Ground reference for the IC.
  2. IN: Input voltage pin.
  3. SENSE: Sense input for remote sensing of output voltage.
  4. VREF: Reference voltage output.
  5. FB: Feedback pin for regulating the output voltage.
  6. OUT: Output voltage pin.
  7. ENABLE: Enable/disable control pin.

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.
  • Adjustable output voltage through external resistors.
  • High accuracy and stability in voltage regulation.

Advantages and Disadvantages

Advantages: - High voltage and current handling capability. - Robust protection features ensure safe operation. - Wide operating temperature range. - Compact TO-220 package for easy integration.

Disadvantages: - Quiescent current may be relatively high compared to other voltage regulators. - Limited output current capacity compared to some higher-power regulators.

Working Principles

The L4979D013TR is a voltage regulator that operates by comparing the feedback voltage (FB) with a reference voltage (VREF). It adjusts the output voltage by controlling the pass transistor connected between the input and output pins. The enable pin (ENABLE) allows for easy on/off control of the regulator.

Detailed Application Field Plans

The L4979D013TR is commonly used in various applications, including:

  1. Power supplies for industrial equipment.
  2. Automotive electronics.
  3. Telecommunications systems.
  4. Consumer electronics.
  5. Battery charging circuits.
  6. LED lighting systems.

Detailed and Complete Alternative Models

Some alternative models to the L4979D013TR include:

  1. LM317: Adjustable voltage regulator with similar characteristics.
  2. LT1083: High current, adjustable linear regulator.
  3. TPS7A4700: Low dropout voltage regulator with integrated protection features.
  4. LM1117: Fixed voltage regulator available in various output voltages.
  5. MAX15062: High-efficiency, step-down voltage regulator.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific application requirements.

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技術ソリューションにおける L4979D013TR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of L4979D013TR in technical solutions:

  1. Q: What is L4979D013TR? A: L4979D013TR is a specific model of integrated circuit (IC) used for voltage regulation and control in various technical applications.

  2. Q: What are the key features of L4979D013TR? A: Some key features of L4979D013TR include high efficiency, low standby power consumption, overvoltage protection, thermal shutdown, and adjustable output voltage.

  3. Q: In which technical solutions can L4979D013TR be used? A: L4979D013TR can be used in a wide range of technical solutions such as power supplies, battery chargers, motor control systems, and industrial automation equipment.

  4. Q: How does L4979D013TR help in voltage regulation? A: L4979D013TR incorporates a feedback loop that continuously monitors the output voltage and adjusts the internal circuitry to maintain a stable and regulated output voltage.

  5. Q: Can L4979D013TR handle high current loads? A: Yes, L4979D013TR has a high current handling capability, typically up to several amps, making it suitable for applications with demanding power requirements.

  6. Q: Does L4979D013TR require any external components for operation? A: Yes, L4979D013TR requires some external components such as capacitors, resistors, and inductors to form a complete voltage regulation circuit.

  7. Q: Is L4979D013TR compatible with both AC and DC input sources? A: Yes, L4979D013TR can work with both AC and DC input sources, making it versatile for various power supply applications.

  8. Q: Can L4979D013TR protect against overvoltage conditions? A: Yes, L4979D013TR has built-in overvoltage protection mechanisms that safeguard the connected circuitry from excessive voltage levels.

  9. Q: How does L4979D013TR handle thermal issues? A: L4979D013TR incorporates a thermal shutdown feature that activates when the internal temperature exceeds a certain threshold, protecting the IC from overheating.

  10. Q: Are there any application-specific notes or guidelines for using L4979D013TR? A: Yes, it is important to refer to the datasheet and application notes provided by the manufacturer to ensure proper usage and maximize the performance of L4979D013TR in specific technical solutions.

Please note that the answers provided here are general and may vary depending on the specific requirements and implementation of L4979D013TR in different technical solutions.