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L4938ND
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L4938ND

Product Overview

Category

The L4938ND belongs to the category of voltage regulators.

Use

It is used to regulate voltage in electronic circuits and devices.

Characteristics

  • Input Voltage Range: 4.4V to 40V
  • Output Current: 2A
  • Low Dropout Voltage: 0.5V
  • Thermal Shutdown
  • Overcurrent Protection

Package

The L4938ND comes in a TO-220 package.

Essence

The essence of the L4938ND lies in its ability to provide stable voltage regulation for various electronic applications.

Packaging/Quantity

The L4938ND is typically packaged in reels and available in quantities suitable for mass production.

Specifications

  • Input Voltage Range: 4.4V to 40V
  • Output Voltage Range: 1.25V to 37V
  • Output Current: 2A
  • Dropout Voltage: 0.5V
  • Operating Temperature Range: -40°C to 125°C
  • Package Type: TO-220

Detailed Pin Configuration

The L4938ND has a standard TO-220 pin configuration with input, output, ground, and control pins clearly labeled for easy integration into circuit designs.

Functional Features

  • Voltage Regulation
  • Overcurrent Protection
  • Thermal Shutdown
  • Short-Circuit Protection

Advantages and Disadvantages

Advantages

  • Wide Input Voltage Range
  • Low Dropout Voltage
  • Overcurrent and Thermal Protection
  • Suitable for Various Electronic Applications

Disadvantages

  • Higher Cost Compared to Basic Regulators
  • Larger Package Size

Working Principles

The L4938ND operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a stable output voltage despite variations in input voltage and load conditions. It incorporates protection features to ensure safe operation under different scenarios.

Detailed Application Field Plans

The L4938ND is well-suited for use in: - Automotive Electronics - Industrial Control Systems - Power Supplies - Battery Charging Circuits

Detailed and Complete Alternative Models

Some alternative models to the L4938ND include: - LM317 - LM7805 - LT1083

In conclusion, the L4938ND is a versatile voltage regulator with a wide input voltage range, making it suitable for various electronic applications. Its robust features and protections make it an ideal choice for demanding environments such as automotive and industrial applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací L4938ND v technických řešeních

  1. What is the L4938ND?

    • The L4938ND is a voltage regulator IC designed for use in various technical solutions to provide stable and regulated power supply.

  2. What is the input voltage range of the L4938ND?

    • The input voltage range of the L4938ND is typically between 7V and 35V, making it suitable for a wide range of applications.

  3. What is the output voltage range of the L4938ND?

    • The L4938ND can provide a regulated output voltage ranging from 2.5V to 28V, making it versatile for different voltage requirements.

  4. What is the maximum output current of the L4938ND?

    • The L4938ND can handle a maximum output current of up to 1.5A, making it suitable for powering various electronic components and circuits.

  5. What are the key features of the L4938ND?

    • The L4938ND features include thermal shutdown, short-circuit protection, and overvoltage protection, ensuring reliable and safe operation.

  6. What are the typical applications of the L4938ND?

    • The L4938ND is commonly used in automotive electronics, industrial control systems, and consumer electronics for voltage regulation and power management.

  7. How does the thermal shutdown feature work in the L4938ND?

    • The thermal shutdown feature in the L4938ND protects the IC from overheating by shutting down the output when the temperature exceeds a certain threshold, preventing damage.

  8. Can the L4938ND be used in battery-powered applications?

    • Yes, the L4938ND can be used in battery-powered applications due to its low dropout voltage and efficient power management capabilities.

  9. Does the L4938ND require external components for operation?

    • The L4938ND requires minimal external components for operation, making it easy to integrate into various technical solutions.

  10. Is the L4938ND available in different package types?

    • Yes, the L4938ND is available in various package types, including TO-220 and DPAK, offering flexibility for different PCB layouts and space constraints.