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VN920-E
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VN920-E

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit protection

Package: TO-220

Essence: The VN920-E is a voltage regulator IC that provides a stable output voltage regardless of input voltage fluctuations. It is commonly used in electronic devices to ensure a consistent power supply.

Packaging/Quantity: The VN920-E is typically sold in packs of 10 or more, with each IC individually packaged in an anti-static bag.

Specifications

  • Input Voltage Range: 4.5V - 40V
  • Output Voltage Range: 1.2V - 37V
  • Output Current: Up to 1.5A
  • Dropout Voltage: 0.5V (typical)
  • Quiescent Current: 10mA (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The VN920-E has three pins:

  1. Input (VIN): This pin is connected to the input voltage source.
  2. Output (VOUT): This pin provides the regulated output voltage.
  3. Ground (GND): This pin is connected to the ground reference.

Functional Features

  • Low Dropout Voltage: The VN920-E has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
  • High Output Current Capability: With a maximum output current of 1.5A, the VN920-E can power a wide range of electronic devices.
  • Adjustable Output Voltage: The output voltage can be adjusted using external resistors, providing flexibility for different applications.
  • Thermal Shutdown Protection: The IC includes built-in thermal shutdown protection, which prevents overheating and damage to the device.
  • Short-Circuit Protection: The VN920-E is equipped with short-circuit protection, ensuring the safety of the circuit in case of a fault.

Advantages and Disadvantages

Advantages: - Stable output voltage - Wide input voltage range - High output current capability - Adjustable output voltage - Built-in protection features

Disadvantages: - Relatively high quiescent current - Limited output voltage range compared to some other voltage regulators

Working Principles

The VN920-E operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage. By continuously monitoring the output voltage, the IC compensates for any changes in the input voltage or load conditions, ensuring a consistent power supply.

Detailed Application Field Plans

The VN920-E can be used in various applications that require a regulated power supply. Some common application fields include: - Automotive electronics - Industrial control systems - Power management circuits - Battery-powered devices - Audio amplifiers

Detailed and Complete Alternative Models

  1. LM317: This voltage regulator offers similar features and adjustable output voltage capability.
  2. L7805: A fixed-output voltage regulator with a 5V output, suitable for applications requiring a specific voltage level.
  3. LT1084: This IC provides a higher output current capability and lower dropout voltage compared to the VN920-E.

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

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기술 솔루션에 VN920-E 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of VN920-E in technical solutions:

  1. Q: What is VN920-E? A: VN920-E is a high-side driver IC designed for automotive applications, specifically for driving resistive loads.

  2. Q: What are the key features of VN920-E? A: The key features of VN920-E include over-temperature protection, short-circuit protection, and low quiescent current consumption.

  3. Q: What is the maximum load current that VN920-E can handle? A: VN920-E can handle a maximum load current of 1.5A.

  4. Q: Can VN920-E be used in both 12V and 24V systems? A: Yes, VN920-E is designed to work with both 12V and 24V systems.

  5. Q: Is VN920-E compatible with microcontrollers and other digital control devices? A: Yes, VN920-E can be easily controlled by microcontrollers or other digital control devices through its input pin.

  6. Q: Does VN920-E have built-in protection against reverse polarity? A: No, VN920-E does not have built-in reverse polarity protection. External measures need to be taken to protect against reverse polarity.

  7. Q: Can VN920-E be used in harsh environments? A: Yes, VN920-E is designed to operate in a wide temperature range (-40°C to +150°C) and is suitable for use in harsh automotive environments.

  8. Q: What is the typical response time of VN920-E? A: The typical response time of VN920-E is around 1µs.

  9. Q: Can VN920-E be used for PWM (Pulse Width Modulation) applications? A: Yes, VN920-E can be used for PWM applications as it has a fast switching capability.

  10. Q: Are there any evaluation boards or reference designs available for VN920-E? A: Yes, STMicroelectronics provides evaluation boards and reference designs for VN920-E to help with the development and testing process.

Please note that these answers are general and may vary depending on the specific application and requirements.