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LNK414LG
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LNK414LG

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 - Short-circuit protection

Package: SOP-7 (Small Outline Package)

Essence: LNK414LG is a power management IC designed for efficient energy conversion and regulation in various electronic devices.

Packaging/Quantity: The LNK414LG is typically sold in reels containing 2500 units per reel.

Specifications

The LNK414LG has the following specifications:

  • Input Voltage Range: 85V AC to 265V AC
  • Output Voltage: 5V DC
  • Output Current: 100mA
  • Operating Temperature Range: -40°C to +150°C
  • Efficiency: Up to 85%
  • Standby Power Consumption: Less than 50mW

Detailed Pin Configuration

The LNK414LG features a SOP-7 package with the following pin configuration:

  1. VDD (Power Supply)
  2. GND (Ground)
  3. FB (Feedback)
  4. BP (Brownout Protection)
  5. EN/UVLO (Enable/Undervoltage Lockout)
  6. DRAIN (Switching Transistor Drain)
  7. SOURCE (Switching Transistor Source)

Functional Features

The LNK414LG offers the following functional features:

  • Primary-side control for simplified design
  • Integrated high-voltage MOSFET
  • Frequency jittering for reduced EMI emissions
  • Auto-restart protection for fault conditions
  • Cycle-by-cycle current limit
  • Line and load regulation
  • Built-in thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Compact size allows for space-saving designs - Wide input voltage range enables global compatibility - Over-temperature, over-voltage, and short-circuit protection enhance reliability

Disadvantages: - Limited output current may not be suitable for high-power applications - SOP-7 package may require surface mount technology (SMT) assembly expertise

Working Principles

The LNK414LG utilizes primary-side control to regulate the output voltage. It integrates a high-voltage MOSFET that switches at a fixed frequency. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the switching transistor accordingly. This control mechanism ensures stable and efficient power conversion.

Detailed Application Field Plans

The LNK414LG is commonly used in various electronic devices requiring power management, such as:

  1. LED lighting systems
  2. Home appliances
  3. Industrial equipment
  4. Consumer electronics
  5. Power adapters

Detailed and Complete Alternative Models

  1. LNK413LG - Similar specifications and features, but with a lower output current rating.
  2. LNK415LG - Similar specifications and features, but with a higher output current rating.
  3. LNK416LG - Similar specifications and features, but with additional protection features like over-current protection.

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

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LNK414LG i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LNK414LG in technical solutions:

  1. Q: What is LNK414LG? A: LNK414LG is a highly integrated, offline switcher IC designed for low-power applications.

  2. Q: What are the typical applications of LNK414LG? A: LNK414LG 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 LNK414LG? A: LNK414LG supports an input voltage range of 85VAC to 265VAC.

  4. Q: What is the output power range that can be achieved with LNK414LG? A: The output power range of LNK414LG typically varies from 0.5W to 8W, depending on the specific application and design.

  5. Q: Does LNK414LG require an external heat sink for thermal management? A: No, LNK414LG is designed to operate without an external heat sink, thanks to its built-in thermal protection features.

  6. Q: Can LNK414LG be used in dimmable lighting applications? A: Yes, LNK414LG supports both leading-edge and trailing-edge dimming techniques, making it suitable for dimmable lighting solutions.

  7. Q: Is LNK414LG compatible with universal input voltage standards? A: Yes, LNK414LG is designed to meet universal input voltage standards, allowing it to be used globally.

  8. Q: Does LNK414LG have any built-in protection features? A: Yes, LNK414LG incorporates various protection features like over-temperature protection, output short-circuit protection, and overvoltage protection.

  9. Q: Can LNK414LG be used in battery-powered applications? A: No, LNK414LG is specifically designed for offline applications and requires an AC power source.

  10. Q: Are there any reference designs available for LNK414LG? A: Yes, the manufacturer provides reference designs and application notes to assist in the implementation of LNK414LG in various technical solutions.

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