ON Semiconductor
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NCP431ACDR2G
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NCP431ACDR2G

Product Overview

Category

NCP431ACDR2G belongs to the category of voltage references.

Use

This product is commonly used as a precision shunt regulator.

Characteristics

  • Provides a stable output voltage reference.
  • Offers high accuracy and low temperature coefficient.
  • Operates over a wide range of input voltages.
  • Can be used in various applications requiring precise voltage regulation.

Package

NCP431ACDR2G is available in a small SOT-23 package.

Essence

The essence of NCP431ACDR2G lies in its ability to provide a stable and accurate voltage reference for different electronic circuits.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of NCP431ACDR2G units.

Specifications

  • Output Voltage: 2.5V
  • Input Voltage Range: 2.7V to 36V
  • Initial Accuracy: ±0.5%
  • Temperature Coefficient: 50ppm/°C
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

NCP431ACDR2G has three pins:

  1. Vref: Output voltage reference pin.
  2. Anode: Anode connection for the internal shunt regulator.
  3. Cathode: Cathode connection for the internal shunt regulator.

Functional Features

  • Precise Voltage Regulation: The NCP431ACDR2G provides a stable output voltage reference, ensuring accurate voltage regulation in various applications.
  • Low Temperature Coefficient: With a temperature coefficient of 50ppm/°C, this product maintains stability even under varying temperature conditions.
  • Wide Input Voltage Range: The NCP431ACDR2G can operate within a wide input voltage range of 2.7V to 36V, making it suitable for diverse electronic systems.

Advantages and Disadvantages

Advantages

  • High accuracy and stability.
  • Wide input voltage range.
  • Small package size.
  • Low temperature coefficient.

Disadvantages

  • Limited output voltage options.
  • Sensitive to external noise and disturbances.

Working Principles

The NCP431ACDR2G operates as a shunt regulator. It compares the reference voltage (Vref) with the input voltage and adjusts the current flowing through the internal shunt regulator to maintain a stable output voltage. By continuously monitoring and regulating the voltage difference, this product ensures precise voltage regulation in various applications.

Detailed Application Field Plans

NCP431ACDR2G finds application in several fields, including:

  1. Power Supply Units: It is used to provide accurate voltage references in power supply units, ensuring stable and reliable operation.
  2. Industrial Control Systems: This product is employed in industrial control systems to maintain precise voltage levels for optimal performance.
  3. Automotive Electronics: NCP431ACDR2G is utilized in automotive electronics to regulate voltages in critical systems, such as engine control units and safety modules.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to NCP431ACDR2G are:

  1. LM4040: A precision voltage reference with similar characteristics and package options.
  2. LT1236: Another voltage reference offering high accuracy and stability.
  3. REF3030: A low-power voltage reference suitable for battery-powered applications.

These alternative models provide similar functionality and can be used as substitutes depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací NCP431ACDR2G v technických řešeních

Sure! Here are 10 common questions and answers related to the application of NCP431ACDR2G in technical solutions:

  1. Q: What is the NCP431ACDR2G? A: The NCP431ACDR2G is a voltage reference and shunt regulator IC commonly used in various technical solutions.

  2. Q: What is the purpose of using the NCP431ACDR2G in a circuit? A: The NCP431ACDR2G is used to provide a stable voltage reference or regulate voltage levels in electronic circuits.

  3. Q: What is the voltage range supported by the NCP431ACDR2G? A: The NCP431ACDR2G supports a voltage range from 1.24V to 36V.

  4. Q: How does the NCP431ACDR2G maintain a stable voltage output? A: The NCP431ACDR2G uses a feedback mechanism to compare the output voltage with a reference voltage, adjusting its resistance to maintain a stable output.

  5. Q: Can the NCP431ACDR2G handle high current loads? A: No, the NCP431ACDR2G is typically used for low to moderate current applications. For high current loads, an external transistor can be added.

  6. Q: Is the NCP431ACDR2G suitable for battery-powered applications? A: Yes, the NCP431ACDR2G is commonly used in battery-powered applications due to its low quiescent current and wide input voltage range.

  7. Q: How accurate is the voltage reference provided by the NCP431ACDR2G? A: The NCP431ACDR2G has a typical accuracy of ±1% over temperature and load variations.

  8. Q: Can the NCP431ACDR2G be used in automotive applications? A: Yes, the NCP431ACDR2G is suitable for automotive applications as it can operate over a wide temperature range and has built-in protection features.

  9. Q: What are the typical applications of the NCP431ACDR2G? A: The NCP431ACDR2G is commonly used in voltage regulators, power supplies, battery chargers, and precision measurement equipment.

  10. Q: Are there any specific precautions to consider when using the NCP431ACDR2G? A: It is important to ensure proper heat dissipation, avoid exceeding the maximum ratings, and follow the manufacturer's guidelines for stability and reliability.