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LNK458KG-TL
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LNK458KG-TL

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

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

Package: TO-220

Essence: LNK458KG-TL is a power management integrated circuit designed for efficient power conversion in various applications.

Packaging/Quantity: The LNK458KG-TL is available in a TO-220 package and is typically sold in reels of 1000 units.

Specifications

The LNK458KG-TL has the following specifications:

  • Input Voltage Range: 85V to 265V AC
  • Output Voltage: 5V DC
  • Output Current: Up to 1A
  • Efficiency: >85%
  • Operating Temperature Range: -40°C to +125°C
  • Package Type: TO-220
  • Pin Count: 5

Detailed Pin Configuration

The LNK458KG-TL has the following pin configuration:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. Drain: High-voltage power MOSFET drain connection
  5. Sense: Current sense input for control loop

Functional Features

The LNK458KG-TL offers the following functional features:

  • Primary-side sensing and regulation
  • Constant output voltage
  • Over-temperature protection
  • Auto-restart protection mode
  • Frequency jittering for reduced EMI

Advantages and Disadvantages

Advantages: - High efficiency leading to energy savings - Compact size and easy integration - Reliable over-temperature and short-circuit protection - Wide input voltage range for versatile applications

Disadvantages: - Limited output current capacity - Requires external components for complete power supply design

Working Principles

The LNK458KG-TL operates on the principle of primary-side sensing and regulation. It uses a high-voltage power MOSFET to convert the input AC voltage to a regulated DC output voltage. The feedback pin (FB) is used to regulate the output voltage, ensuring a constant and stable supply. The IC also incorporates various protection mechanisms such as over-temperature and short-circuit protection to ensure safe operation.

Detailed Application Field Plans

The LNK458KG-TL is commonly used in the following applications:

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

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LNK458KG-TL are:

  1. LNK457KG-TL
  2. LNK456KG-TL
  3. LNK455KG-TL
  4. LNK454KG-TL
  5. LNK453KG-TL

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

In conclusion, the LNK458KG-TL is a power management IC designed for efficient power conversion. With its wide input voltage range, high efficiency, and built-in protection features, it finds applications in various fields such as consumer electronics, LED lighting, and industrial control systems.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LNK458KG-TL en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of LNK458KG-TL in technical solutions:

  1. Q: What is LNK458KG-TL? A: LNK458KG-TL is a highly integrated, offline switcher IC designed for low-power applications.

  2. Q: What are the typical applications of LNK458KG-TL? A: LNK458KG-TL 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 LNK458KG-TL? A: LNK458KG-TL supports an input voltage range of 85VAC to 265VAC.

  4. Q: What is the maximum output power that can be achieved with LNK458KG-TL? A: The maximum output power depends on the specific design and application, but typically ranges from 5W to 15W.

  5. Q: Does LNK458KG-TL require an external MOSFET? A: No, LNK458KG-TL integrates a high-voltage MOSFET, eliminating the need for an external one.

  6. Q: Can LNK458KG-TL operate in a wide temperature range? A: Yes, LNK458KG-TL is designed to operate reliably in a temperature range of -40°C to +150°C.

  7. Q: Does LNK458KG-TL have built-in protection features? A: Yes, LNK458KG-TL includes various protection features like over-temperature protection, output short-circuit protection, and open-loop protection.

  8. Q: Is LNK458KG-TL compliant with safety standards? A: Yes, LNK458KG-TL is compliant with international safety standards such as UL, CE, and ENEC.

  9. Q: Can LNK458KG-TL be used in dimmable lighting applications? A: Yes, LNK458KG-TL supports both leading-edge and trailing-edge dimming techniques for dimmable lighting solutions.

  10. Q: Are there any reference designs available for LNK458KG-TL? A: Yes, the manufacturer provides reference designs and application notes to help engineers implement LNK458KG-TL in their technical solutions.

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