Power Integrations
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LNK460KG
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LNK460KG

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Low standby power consumption - Wide input voltage range - Over-temperature protection - Over-voltage protection - Over-current protection

Package: TO-220

Essence: LNK460KG is a power management IC designed for high-efficiency offline switch mode power supplies.

Packaging/Quantity: The LNK460KG is typically sold in reels of 1000 units.

Specifications

  • Input Voltage Range: 85 VAC to 265 VAC
  • Output Power: Up to 25 W
  • Operating Frequency: 132 kHz
  • Maximum Duty Cycle: 78%
  • Standby Power Consumption: Less than 30 mW
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The LNK460KG has the following pin configuration:

  1. Drain (D)
  2. Source (S)
  3. Feedback (F)
  4. Ground (G)
  5. Control (C)

Functional Features

  • Primary-side control eliminates the need for an optocoupler and secondary-side feedback components.
  • Auto-restart protection feature ensures continuous operation even in fault conditions.
  • Accurate output voltage regulation.
  • Built-in frequency jittering reduces EMI emissions.
  • Advanced line and load regulation.

Advantages

  • High efficiency leads to reduced power consumption and lower operating costs.
  • Wide input voltage range allows for worldwide compatibility.
  • Over-temperature, over-voltage, and over-current protection enhance system reliability and safety.
  • Compact TO-220 package enables easy integration into various applications.

Disadvantages

  • Limited output power capability compared to higher-rated ICs.
  • Requires careful thermal management due to its small package size.

Working Principles

The LNK460KG utilizes a primary-side control technique to regulate the output voltage of an offline switch mode power supply. It integrates a high-voltage power MOSFET, a controller, and various protection features into a single chip. The primary-side control eliminates the need for an optocoupler and simplifies the feedback loop, resulting in a more cost-effective and reliable solution.

Detailed Application Field Plans

The LNK460KG is commonly used in the following applications:

  1. LED lighting systems
  2. Consumer electronics
  3. Industrial power supplies
  4. Home appliances
  5. Smart meters

Detailed and Complete Alternative Models

  1. LNK562KG
  2. LNK564KG
  3. LNK566KG
  4. LNK568KG
  5. LNK570KG

These alternative models offer similar functionality and characteristics to the LNK460KG, but with varying specifications and package options.

In conclusion, the LNK460KG is a highly efficient power management IC designed for offline switch mode power supplies. Its primary-side control, wide input voltage range, and built-in protection features make it suitable for various applications. While it has limitations in terms of output power capability and thermal management, there are alternative models available to meet specific requirements.

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LNK460KG in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of LNK460KG in technical solutions:

  1. Q: What is LNK460KG? A: LNK460KG is a highly integrated, energy-efficient power conversion IC designed for offline flyback converters.

  2. Q: What are the typical applications of LNK460KG? A: LNK460KG is commonly used in various applications such as LED lighting, appliances, industrial controls, and IoT devices.

  3. Q: What is the input voltage range supported by LNK460KG? A: LNK460KG supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global use.

  4. Q: Can LNK460KG operate in a constant current mode? A: Yes, LNK460KG can be configured to operate in constant current mode, which is useful for driving LED lighting applications.

  5. Q: Does LNK460KG have built-in protection features? A: Yes, LNK460KG incorporates various protection features like over-temperature protection, output short-circuit protection, and open-loop protection.

  6. Q: What is the maximum output power that LNK460KG can handle? A: LNK460KG can handle a maximum output power of up to 15W, depending on the specific application and design considerations.

  7. Q: Is LNK460KG compatible with dimming functionality? A: Yes, LNK460KG can be easily integrated with dimming functionality, allowing for adjustable brightness control in lighting applications.

  8. Q: Can LNK460KG operate in a wide temperature range? A: Yes, LNK460KG has a wide operating temperature range of -40°C to +150°C, enabling reliable operation in various environments.

  9. Q: Does LNK460KG require an external heat sink for thermal management? A: In most cases, LNK460KG does not require an external heat sink due to its high level of integration and efficient design.

  10. Q: Are there any reference designs available for LNK460KG? A: Yes, the manufacturer provides reference designs and application notes that can help engineers implement LNK460KG in their projects effectively.

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