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LNK6405D
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LNK6405D

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-current protection

Package: DIP-8 (Dual In-line Package)

Essence: LNK6405D is a power management IC designed for efficient power conversion and regulation.

Packaging/Quantity: The LNK6405D is typically packaged in reels containing 2500 units per reel.

Specifications

The specifications of the LNK6405D are as follows:

  • Input Voltage Range: 85V AC to 265V AC
  • Output Voltage: 5V DC
  • Output Current: Up to 1A
  • Efficiency: Greater than 80%
  • Operating Temperature Range: -40°C to +125°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The LNK6405D has a standard DIP-8 pin configuration. The pins are labeled as follows:

  1. VCC - Power supply input
  2. GND - Ground reference
  3. FB - Feedback pin for output voltage regulation
  4. NC - No connection
  5. VOUT - Output voltage
  6. VOUT - Output voltage
  7. NC - No connection
  8. VCC - Power supply input

Functional Features

The LNK6405D offers the following functional features:

  • Integrated high-voltage power MOSFET
  • Frequency jittering for reduced EMI emissions
  • Auto-restart protection for fault conditions
  • Built-in line and load regulation
  • Soft-start for controlled startup

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range allows for versatile applications - Compact size enables space-saving designs - Over-temperature and over-current protection enhance reliability

Disadvantages: - Limited output current may not be suitable for high-power applications - DIP-8 package may require additional PCB space compared to smaller packages

Working Principles

The LNK6405D utilizes a flyback topology to convert the input AC voltage into a regulated DC output. It incorporates a high-voltage power MOSFET, which switches the primary side of the transformer. The secondary side provides the desired output voltage through rectification and filtering.

The IC employs frequency jittering to reduce electromagnetic interference (EMI) emissions. In case of fault conditions, such as over-temperature or over-current, the auto-restart protection feature ensures safe operation.

Detailed Application Field Plans

The LNK6405D is commonly used in various applications, including but not limited to:

  1. Power supplies for consumer electronics
  2. LED lighting systems
  3. Home appliances
  4. Industrial automation equipment
  5. Battery chargers
  6. IoT devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LNK6405D are:

  1. LNK6406D
  2. LNK6407D
  3. LNK6408D
  4. LNK6409D

These models share the same pin configuration, package type, and general specifications, making them suitable alternatives for different design requirements.

In conclusion, the LNK6405D is a power management IC designed for efficient power conversion and regulation. Its compact size, wide input voltage range, and integrated protection features make it suitable for various applications. With its functional features and advantages, the LNK6405D offers a reliable solution for power supply needs.

技術ソリューションにおける LNK6405D 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 LNK6405D in technical solutions:

  1. Q: What is LNK6405D? A: LNK6405D is a highly integrated offline switcher IC designed for low-power applications, providing accurate constant voltage (CV) and constant current (CC) regulation.

  2. Q: What are the typical applications of LNK6405D? A: LNK6405D is commonly used in LED lighting, smart home devices, industrial controls, and other low-power applications requiring efficient power conversion.

  3. Q: How does LNK6405D achieve high efficiency? A: LNK6405D utilizes advanced primary-side sensing technology, which eliminates the need for an optocoupler and secondary-side feedback components, resulting in higher efficiency and lower component count.

  4. Q: Can LNK6405D operate in a wide input voltage range? A: Yes, LNK6405D can operate from a wide input voltage range, typically from 85VAC to 265VAC, making it suitable for global applications.

  5. Q: Does LNK6405D provide protection features? A: Yes, LNK6405D incorporates various protection features such as output overvoltage protection (OVP), output short-circuit protection (SCP), and thermal shutdown (TSD) to ensure safe operation.

  6. Q: Is LNK6405D compatible with dimming functionality? A: No, LNK6405D does not support dimming functionality. It is primarily designed for constant voltage and constant current applications.

  7. Q: What is the maximum output power that LNK6405D can handle? A: The maximum output power of LNK6405D depends on the specific application and thermal considerations. It is recommended to refer to the datasheet and design guidelines for accurate power calculations.

  8. Q: Can LNK6405D be used in battery-powered applications? A: No, LNK6405D is not suitable for battery-powered applications as it requires an AC input voltage for operation.

  9. Q: Does LNK6405D require an external MOSFET for switching? A: No, LNK6405D integrates a high-voltage power MOSFET, eliminating the need for an external switch component.

  10. Q: Are there any reference designs available for LNK6405D? A: Yes, Power Integrations provides reference designs and application notes for LNK6405D, which can serve as a starting point for designing various technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and implementation of LNK6405D in different applications.