Littelfuse Inc.
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P4802AB
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P4802AB Product Overview

Introduction

P4802AB is a versatile integrated circuit that belongs to the category of voltage regulators. It is widely used in electronic devices to regulate and stabilize voltage levels, ensuring consistent and reliable power supply to sensitive components.

Basic Information Overview

  • Category: Voltage Regulator
  • Use: Stabilizing and regulating voltage levels in electronic devices
  • Characteristics: High precision, low dropout voltage, thermal shutdown protection
  • Package: TO-220, TO-263, D2PAK
  • Essence: Ensuring stable and reliable power supply
  • Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

The P4802AB voltage regulator operates within a voltage range of 1.25V to 20V, with a maximum output current of 3A. It features a low dropout voltage of 0.5V at full load and a quiescent current of 5mA.

Detailed Pin Configuration

The P4802AB package consists of three pins: 1. Input (VIN): Connects to the unregulated input voltage 2. Ground (GND): Connected to the ground reference 3. Output (VOUT): Provides the regulated output voltage

Functional Features

  • High Precision: The P4802AB offers precise voltage regulation, making it suitable for applications requiring stable power supply.
  • Thermal Shutdown Protection: It incorporates thermal shutdown protection to prevent damage from excessive heat.
  • Low Dropout Voltage: With a low dropout voltage, it can maintain stable output even when the input voltage is close to the output voltage.

Advantages and Disadvantages

Advantages

  • Reliable voltage regulation
  • Thermal protection for enhanced safety
  • Low dropout voltage for efficient operation

Disadvantages

  • Higher cost compared to basic linear regulators
  • Requires careful heat dissipation in high-power applications

Working Principles

The P4802AB utilizes a feedback control mechanism to compare the output voltage with a reference voltage, adjusting the internal circuitry to maintain a constant output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The P4802AB finds extensive use in various electronic applications, including: - Power supplies for microcontrollers and digital circuits - Battery charging circuits - LED lighting systems - Automotive electronics

Detailed and Complete Alternative Models

  • LM317: A popular adjustable linear voltage regulator with similar characteristics
  • LM7805: Fixed 5V voltage regulator commonly used in electronic circuits
  • LT1083: High-current adjustable voltage regulator suitable for power supply applications

In conclusion, the P4802AB voltage regulator offers precise and reliable voltage regulation, making it an essential component in numerous electronic devices and systems.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням P4802AB у технічних рішеннях

Sure, here are 10 common questions and answers related to the application of P4802AB in technical solutions:

  1. What is P4802AB?

    • P4802AB is a high-performance adhesive commonly used in technical solutions for bonding various materials.

  2. What are the key features of P4802AB?

    • P4802AB offers excellent adhesion to a wide range of substrates, high temperature resistance, and good chemical resistance.

  3. In what applications can P4802AB be used?

    • P4802AB is commonly used in automotive assembly, electronics manufacturing, aerospace, and general industrial bonding applications.

  4. How does P4802AB perform under extreme temperatures?

    • P4802AB exhibits excellent performance under both high and low temperatures, making it suitable for applications with demanding thermal conditions.

  5. Can P4802AB bond dissimilar materials?

    • Yes, P4802AB is designed to bond dissimilar materials such as metals, plastics, composites, and ceramics.

  6. What surface preparation is required when using P4802AB?

    • For optimal bonding, surfaces should be clean, dry, and free from contaminants such as oil, grease, and dust.

  7. Is P4802AB suitable for outdoor applications?

    • Yes, P4802AB is resistant to weathering and UV exposure, making it suitable for outdoor applications.

  8. What is the shelf life of P4802AB?

    • When stored in its original unopened containers at recommended temperatures, P4802AB typically has a shelf life of 12 months.

  9. Can P4802AB be used for structural bonding?

    • Yes, P4802AB is suitable for structural bonding applications where high strength and durability are required.

  10. Are there any safety precautions to consider when using P4802AB?

    • Users should refer to the material safety data sheet (MSDS) for specific handling, storage, and disposal guidelines when working with P4802AB.