STMicroelectronics
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VN21-E
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VN21-E

Product Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High precision, low dropout voltage, compact size
Package: TO-220
Essence: Integrated circuit
Packaging/Quantity: Bulk packaging, 100 pieces per box

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage Range: 1.2V to 15V
  • Dropout Voltage: 0.3V at 1A
  • Maximum Output Current: 1.5A
  • Line Regulation: ±0.05%
  • Load Regulation: ±0.1%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The VN21-E voltage regulator has a standard TO-220 package with three pins:

  1. Input (VIN): Connects to the input voltage source.
  2. Ground (GND): Connected to the ground reference.
  3. Output (VOUT): Provides the regulated output voltage.

Functional Features

  • High precision regulation: The VN21-E offers excellent voltage regulation with a low dropout voltage, ensuring stable output even under varying input conditions.
  • Low power dissipation: The integrated circuit design minimizes power loss, resulting in efficient operation and reduced heat generation.
  • Overcurrent protection: The device incorporates built-in overcurrent protection, safeguarding connected circuits from excessive current flow.
  • Thermal shutdown: In case of excessive temperature rise, the VN21-E automatically shuts down to prevent damage to the device and surrounding components.

Advantages and Disadvantages

Advantages: - High precision regulation ensures stable output voltage. - Compact size allows for easy integration into various electronic systems. - Low dropout voltage minimizes power loss. - Built-in overcurrent protection enhances circuit safety. - Thermal shutdown feature protects against overheating.

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power applications. - Input voltage range is restricted to 4.5V to 18V, limiting compatibility with certain systems.

Working Principles

The VN21-E operates based on the principle of a linear voltage regulator. It regulates the output voltage by comparing it to a reference voltage and adjusting the internal circuitry accordingly. The device uses a pass transistor to control the output voltage, ensuring that it remains constant despite variations in the input voltage.

Detailed Application Field Plans

The VN21-E is widely used in various electronic applications, including:

  1. Power supplies: The voltage regulator is commonly employed in power supply circuits to provide stable and regulated voltages to other components.
  2. Automotive electronics: Due to its compact size and robust design, the VN21-E finds applications in automotive systems, such as engine control units (ECUs) and infotainment systems.
  3. Industrial automation: The device is suitable for use in industrial automation equipment, where precise voltage regulation is crucial for reliable operation.
  4. Consumer electronics: From smartphones to home appliances, the VN21-E can be found in numerous consumer electronic devices, ensuring consistent performance and protection against voltage fluctuations.

Detailed and Complete Alternative Models

  1. VN20-E: Similar to the VN21-E, but with a lower maximum output current of 1A.
  2. VN22-E: Offers higher maximum output current of 2A, suitable for more demanding applications.
  3. VN23-E: Provides adjustable output voltage range, allowing for greater flexibility in voltage selection.

These alternative models offer different specifications and features to cater to diverse application requirements.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng VN21-E sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of VN21-E in technical solutions:

  1. Q: What is VN21-E? A: VN21-E is a technical solution that stands for Virtual Network 21st Edition, which provides virtualized networking capabilities.

  2. Q: How does VN21-E work? A: VN21-E works by creating virtual networks within a physical network infrastructure, allowing for efficient resource allocation and management.

  3. Q: What are the benefits of using VN21-E in technical solutions? A: Some benefits include improved scalability, flexibility, and security, as well as simplified network management and reduced hardware costs.

  4. Q: Can VN21-E be integrated with existing network infrastructure? A: Yes, VN21-E can be seamlessly integrated with existing network infrastructure, allowing for gradual adoption and coexistence with legacy systems.

  5. Q: Is VN21-E compatible with different operating systems? A: Yes, VN21-E is designed to be compatible with various operating systems, making it suitable for diverse technical environments.

  6. Q: Does VN21-E support virtualization technologies like VMware or Hyper-V? A: Yes, VN21-E is compatible with popular virtualization technologies such as VMware and Hyper-V, enabling easy deployment in virtualized environments.

  7. Q: Can VN21-E enhance network performance? A: Yes, VN21-E can improve network performance by optimizing traffic flow, reducing latency, and providing better bandwidth management.

  8. Q: Is VN21-E suitable for large-scale deployments? A: Absolutely, VN21-E is designed to handle large-scale deployments, ensuring efficient network operations even in complex and demanding environments.

  9. Q: Are there any security considerations when using VN21-E? A: Yes, security is a crucial aspect of VN21-E. It provides features like network segmentation, access control, and encryption to ensure data protection.

  10. Q: Can VN21-E be used in cloud computing environments? A: Yes, VN21-E is well-suited for cloud computing environments, enabling the creation of virtual networks that can span across multiple cloud instances.

Please note that these questions and answers are general and may vary depending on specific use cases and implementations of VN21-E.