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U490B-M
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U490B-M Product Encyclopedia Entry

Product Overview

Category

The U490B-M belongs to the category of integrated circuits (ICs) and is specifically classified as a voltage regulator IC.

Use

This product is primarily used for regulating voltage in electronic circuits, ensuring a stable and consistent output voltage despite fluctuations in input voltage or load conditions.

Characteristics

  • Stability: The U490B-M offers high stability in voltage regulation, making it suitable for sensitive electronic devices.
  • Efficiency: It operates with high efficiency, minimizing power loss during voltage conversion.
  • Compact Package: The IC is housed in a compact package, making it suitable for space-constrained applications.
  • Low Noise: It produces minimal electrical noise, contributing to the overall performance of the circuit.

Package

The U490B-M is available in a small outline integrated circuit (SOIC) package, which provides ease of handling and integration into circuit designs.

Essence

The essence of the U490B-M lies in its ability to provide reliable voltage regulation, contributing to the overall functionality and performance of electronic systems.

Packaging/Quantity

The U490B-M is typically supplied in reels containing a specific quantity, such as 2500 units per reel, catering to production and manufacturing requirements.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 1.25V to 20V
  • Output Current: Up to 1.5A
  • Operating Temperature Range: -40°C to 125°C
  • Quiescent Current: 100µA (typical)

Detailed Pin Configuration

The U490B-M features a standard pin configuration with pins designated for input voltage, ground, output voltage, and other essential connections. Refer to the datasheet for the detailed pinout diagram.

Functional Features

  • Voltage Regulation: The IC maintains a stable output voltage despite variations in input voltage and load conditions.
  • Overcurrent Protection: It incorporates overcurrent protection to safeguard the circuit and connected components.
  • Thermal Shutdown: The U490B-M includes thermal shutdown functionality to prevent overheating and ensure safe operation.

Advantages and Disadvantages

Advantages

  • Reliable voltage regulation
  • High efficiency
  • Compact form factor
  • Overcurrent protection

Disadvantages

  • Limited maximum output current compared to higher-power regulators
  • Sensitive to improper handling and static discharge

Working Principles

The U490B-M utilizes feedback control mechanisms to compare the actual output voltage with a reference voltage, adjusting the internal circuitry to maintain the desired output voltage level. This process ensures consistent and accurate voltage regulation.

Detailed Application Field Plans

The U490B-M finds extensive application in various electronic systems, including: - Power supplies - Battery charging circuits - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • U490A-N: Similar voltage regulator IC with enhanced current-handling capabilities
  • U490C-L: Lower power variant suitable for low-current applications
  • U490D-P: Higher precision version with tighter voltage regulation specifications

In conclusion, the U490B-M stands as a reliable and efficient voltage regulator IC, catering to diverse electronic applications with its stable performance and compact design.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af U490B-M i tekniske løsninger

  1. What is U490B-M?

    • U490B-M is a high-performance adhesive commonly used in technical solutions for bonding various materials.

  2. What materials can U490B-M bond?

    • U490B-M can bond a wide range of materials including metals, plastics, composites, and rubber.

  3. What is the recommended application temperature for U490B-M?

    • The recommended application temperature for U490B-M is between 65°F to 100°F (18°C to 38°C).

  4. How long does it take for U490B-M to cure?

    • U490B-M typically cures within 24 hours at room temperature, but curing time can vary based on environmental conditions and material types.

  5. Is U490B-M resistant to moisture and chemicals?

    • Yes, U490B-M exhibits excellent resistance to moisture, chemicals, and environmental factors, making it suitable for demanding applications.

  6. Can U490B-M be used for outdoor applications?

    • Yes, U490B-M is suitable for outdoor applications due to its weather-resistant properties.

  7. Does U490B-M require surface preparation before application?

    • It is recommended to clean and prepare the surfaces to be bonded with U490B-M to ensure optimal adhesion.

  8. What is the shelf life of U490B-M?

    • The shelf life of U490B-M is typically 12 months when stored in its original unopened containers at recommended temperatures.

  9. Can U490B-M be used for structural bonding?

    • Yes, U490B-M is suitable for structural bonding applications when used according to the manufacturer's guidelines.

  10. Is U490B-M suitable for use in high-temperature environments?

    • U490B-M has good heat resistance, but it is important to verify its suitability for specific high-temperature applications.