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LNK6765K
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LNK6765K

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: TO-220

Essence: The LNK6765K is a power management integrated circuit designed for efficient power conversion in various electronic devices.

Packaging/Quantity: The LNK6765K is available in a TO-220 package and is typically sold in reels of 1000 units.

Specifications

  • Input Voltage Range: 85V - 265V AC
  • Output Voltage: 12V DC
  • Output Current: Up to 2A
  • Efficiency: >90%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LNK6765K has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for regulating output voltage
  4. Drain: High-voltage power MOSFET drain connection
  5. Source: High-voltage power MOSFET source connection

Functional Features

  • Primary-side control 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 over-temperature, over-voltage, and short-circuit protection enhance system reliability and safety.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption and heat generation. - Compact size allows for space-saving designs. - Wide input voltage range enables compatibility with different power sources. - Integrated protection features enhance system reliability and safety.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Requires external components for complete power management functionality.

Working Principles

The LNK6765K utilizes primary-side control to regulate the output voltage. It operates by adjusting the duty cycle of the internal power MOSFET based on the feedback received from the FB pin. This eliminates the need for an optocoupler or secondary-side feedback circuitry, simplifying the design and reducing costs.

The IC incorporates various protection mechanisms such as over-temperature, over-voltage, and short-circuit protection. In the event of a fault condition, the auto-restart feature ensures continuous operation by automatically restarting the power conversion process.

Detailed Application Field Plans

The LNK6765K is widely used in various applications, including but not limited to: - Power supplies for consumer electronics - LED lighting systems - Industrial automation equipment - Home appliances - Automotive electronics

Detailed and Complete Alternative Models

  1. LNK6764K: Similar specifications and features, but with a lower output current capability.
  2. LNK6766K: Similar specifications and features, but with a higher output current capability.
  3. LNK6767K: Similar specifications and features, but with additional protection features such as input under-voltage lockout.

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

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技術ソリューションにおける LNK6765K の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of LNK6765K in technical solutions:

  1. Q: What is LNK6765K? A: LNK6765K is a highly integrated, offline switcher IC designed for low-power applications.

  2. Q: What are the key features of LNK6765K? A: LNK6765K features include primary-side regulation, high efficiency, accurate constant voltage (CV) and constant current (CC) control, and comprehensive protection features.

  3. Q: What are the typical applications of LNK6765K? A: LNK6765K is commonly used in LED lighting, smart home devices, industrial controls, and other low-power applications.

  4. Q: How does LNK6765K achieve primary-side regulation? A: LNK6765K uses a proprietary algorithm called EcoSmart™ technology to achieve primary-side regulation, eliminating the need for an optocoupler or secondary feedback circuitry.

  5. Q: What is the input voltage range supported by LNK6765K? A: LNK6765K supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global applications.

  6. Q: Can LNK6765K provide constant voltage and constant current outputs simultaneously? A: Yes, LNK6765K can provide both constant voltage and constant current outputs, making it versatile for various load requirements.

  7. Q: Does LNK6765K have built-in protection features? A: Yes, LNK6765K incorporates multiple protection features such as output overvoltage protection, output short-circuit protection, and thermal shutdown.

  8. Q: What is the efficiency of LNK6765K? A: LNK6765K offers high efficiency, typically above 85%, which helps to reduce power dissipation and improve overall system performance.

  9. Q: Can LNK6765K be used in dimmable lighting applications? A: Yes, LNK6765K can be used in dimmable lighting applications by integrating an external dimming circuitry compatible with the desired dimming method.

  10. Q: Is LNK6765K compliant with safety standards? A: Yes, LNK6765K is designed to meet various safety standards such as UL, CE, and ENEC, ensuring reliable and safe operation in different regions.

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