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LNK363DG
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LNK363DG

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Compact size - Wide input voltage range - Over-temperature protection - Over-voltage protection - Under-voltage lockout - Short-circuit protection

Package: DIP-7 (Dual In-line Package)

Essence: The LNK363DG is a power management IC designed to provide efficient and reliable power conversion for various electronic devices.

Packaging/Quantity: The LNK363DG is typically sold in reels containing 2500 units per reel.

Specifications

  • Input Voltage Range: 85V AC to 265V AC
  • Output Voltage: 5V DC
  • Output Current: Up to 1.2A
  • Switching Frequency: 132 kHz
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The LNK363DG has the following pin configuration:

  1. VDD: Power supply input
  2. BP/MODE: Feedback and control pin
  3. FB: Feedback pin
  4. GND: Ground
  5. DRAIN: Power switch drain
  6. SOURCE: Power switch source
  7. NC: No connection

Functional Features

  • Primary-side sensing eliminates the need for an optocoupler or secondary-side feedback circuitry.
  • Auto-restart protection feature ensures continuous operation even in the event of a fault condition.
  • Frequency jittering reduces EMI emissions, enabling compliance with international standards.
  • Built-in thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Simplified design due to primary-side sensing - Enhanced reliability with auto-restart protection - Reduced electromagnetic interference (EMI) emissions - Compact size for space-constrained applications

Disadvantages: - Limited output current compared to higher-power ICs - Higher cost compared to non-integrated power management solutions

Working Principles

The LNK363DG utilizes a flyback topology to convert the input AC voltage to a regulated DC output voltage. The primary-side sensing technique eliminates the need for an optocoupler or secondary-side feedback circuitry, simplifying the design and reducing component count. The integrated power switch, along with the control circuitry, ensures efficient power conversion while providing various protection features.

Detailed Application Field Plans

The LNK363DG is commonly used in the following applications:

  1. Power adapters for consumer electronics
  2. LED lighting systems
  3. Industrial power supplies
  4. Home appliances
  5. Battery chargers

Detailed and Complete Alternative Models

  1. LNK364DG: Similar specifications and features as LNK363DG but with higher output current capability.
  2. LNK362DG: Lower output current capability but suitable for low-power applications.
  3. LNK361DG: Basic version with limited protection features and lower cost.

These alternative models provide flexibility in choosing the most suitable power management IC based on specific application requirements.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem LNK363DG w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of LNK363DG in technical solutions:

  1. Q: What is LNK363DG? A: LNK363DG is a highly integrated, energy-efficient, offline switcher IC designed for low-power applications.

  2. Q: What are the typical applications of LNK363DG? A: LNK363DG is commonly used in applications such as LED lighting, smart home devices, industrial controls, and consumer electronics.

  3. Q: What is the input voltage range supported by LNK363DG? A: LNK363DG supports an input voltage range of 85VAC to 265VAC, making it suitable for worldwide use.

  4. Q: What is the output power range that LNK363DG can handle? A: LNK363DG can handle output power ranging from a few watts up to approximately 15 watts, depending on the specific application and design.

  5. Q: Does LNK363DG require an external MOSFET? A: No, LNK363DG integrates a high-voltage MOSFET, eliminating the need for an external MOSFET in most applications.

  6. Q: Can LNK363DG operate in a constant current mode? A: Yes, LNK363DG can be configured to operate in a constant current mode, making it suitable for driving LEDs or other current-regulated loads.

  7. Q: Is LNK363DG capable of providing overvoltage protection? A: Yes, LNK363DG includes built-in overvoltage protection (OVP) to safeguard the connected circuitry from excessive voltage levels.

  8. Q: Does LNK363DG have any built-in protection features? A: Yes, LNK363DG incorporates various protection features such as thermal shutdown, cycle-by-cycle current limit, and output short-circuit protection.

  9. Q: Can LNK363DG operate in a wide temperature range? A: Yes, LNK363DG is designed to operate reliably in a wide temperature range, typically from -40°C to 150°C.

  10. Q: Is LNK363DG compliant with safety standards? A: Yes, LNK363DG is designed to meet international safety standards such as UL, CE, and ENEC, ensuring its suitability for use in various applications.

Please note that the answers provided here are general and may vary depending on the specific implementation and design considerations.