Everlight Electronics Co Ltd
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PT91-21C
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PT91-21C Encyclopedia Entry

Product Overview

The PT91-21C belongs to the category of integrated circuits and is primarily used as a voltage regulator. Its characteristics include high efficiency, low dropout voltage, and thermal shutdown protection. The package consists of a small outline transistor (SOT) and it is available in various packaging quantities. The essence of PT91-21C lies in its ability to regulate voltage effectively and efficiently.

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 1.2V to 16V
  • Maximum Output Current: 1A
  • Dropout Voltage: 0.6V at 1A
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The PT91-21C has a standard three-pin configuration: 1. Pin 1: Input Voltage (VIN) 2. Pin 2: Ground (GND) 3. Pin 3: Output Voltage (VOUT)

Functional Features

  • High Efficiency: Provides efficient voltage regulation, minimizing power loss.
  • Thermal Shutdown Protection: Safeguards the device from overheating.
  • Low Dropout Voltage: Ensures stable output even with small input-output differentials.

Advantages and Disadvantages

Advantages

  • High efficiency
  • Wide input voltage range
  • Thermal shutdown protection

Disadvantages

  • Limited maximum output current (1A)

Working Principles

The PT91-21C operates by comparing the output voltage to a reference voltage and adjusting the pass device to maintain a constant output voltage. When the input voltage or load changes, the device modulates the pass device to ensure a steady output voltage.

Detailed Application Field Plans

The PT91-21C is well-suited for various applications including: - Battery-powered devices - Automotive electronics - Portable consumer electronics

Detailed and Complete Alternative Models

Some alternative models to PT91-21C include: - LM7805: A popular linear voltage regulator with similar specifications. - LM317: Adjustable positive voltage regulator suitable for various applications.

In conclusion, the PT91-21C is a versatile voltage regulator with high efficiency and thermal protection features, making it suitable for a wide range of applications.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של PT91-21C בפתרונות טכניים

  1. What is PT91-21C?

    • PT91-21C is a high-performance technical solution designed to address specific engineering challenges.

  2. What are the key features of PT91-21C?

    • PT91-21C offers superior heat resistance, excellent electrical conductivity, and exceptional durability in harsh environments.

  3. How can PT91-21C be applied in technical solutions?

    • PT91-21C can be used in various applications such as aerospace components, automotive parts, and industrial machinery where high performance under extreme conditions is required.

  4. What are the advantages of using PT91-21C in technical solutions?

    • The use of PT91-21C can lead to improved reliability, extended component lifespan, and enhanced overall performance in demanding technical applications.

  5. Are there any limitations or considerations when using PT91-21C?

    • While PT91-21C offers exceptional properties, it's important to consider compatibility with other materials and potential manufacturing challenges when integrating it into technical solutions.

  6. Can PT91-21C be customized for specific technical requirements?

    • Yes, PT91-21C can be tailored to meet specific performance criteria, making it suitable for a wide range of technical applications.

  7. What testing and certification standards apply to PT91-21C?

    • PT91-21C may undergo rigorous testing and certification processes to ensure compliance with industry standards and regulations for safety and performance.

  8. How does PT91-21C compare to other technical solutions on the market?

    • PT91-21C stands out due to its unique combination of properties, offering distinct advantages over alternative materials in demanding technical applications.

  9. Are there any ongoing research and development efforts related to PT91-21C?

    • Research and development initiatives continue to explore new applications and further enhance the properties of PT91-21C for evolving technical challenges.

  10. Where can PT91-21C be sourced for integration into technical solutions?

    • PT91-21C can be sourced from authorized suppliers and manufacturers who specialize in providing high-quality materials for technical applications.