Power Integrations
התמונה עשויה להיות ייצוג.
ראה מפרטים לפרטי מוצר.
LNK6428K
צפה בפרטים DataSheets

LNK6428K

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Compact size - Wide input voltage range - Overload protection - Thermal shutdown protection

Package: DIP-7 (Dual In-line Package 7 pins)

Essence: LNK6428K is a power management integrated circuit designed for efficient power conversion and control.

Packaging/Quantity: The LNK6428K is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

The specifications of the LNK6428K are as follows:

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

Pin Configuration

The pin configuration of the LNK6428K is as follows:

  1. VDD - Power Supply Voltage
  2. BP/MODE - Bypass/MODE Selection
  3. FB - Feedback Pin
  4. GND - Ground
  5. DRAIN - Power Switch Drain
  6. SOURCE - Power Switch Source
  7. VDD - Power Supply Voltage

Functional Features

The LNK6428K offers the following functional features:

  • Integrated high-voltage power MOSFET
  • Frequency jittering for reduced EMI emissions
  • Auto-restart protection for fault conditions
  • Cycle-by-cycle current limit
  • Line undervoltage detection
  • Output overvoltage 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 - Overload and thermal shutdown protection ensure safety

Disadvantages: - Limited output current capacity (up to 1A) - Requires external components for complete power management solution

Working Principles

The LNK6428K operates on the principle of switching power conversion. It utilizes a high-voltage power MOSFET to regulate the input voltage and provide a stable output voltage. The integrated circuit incorporates various protection mechanisms to ensure safe and reliable operation.

Detailed Application Field Plans

The LNK6428K is commonly used in the following applications:

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

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LNK6428K include:

  1. LNK632DG
  2. LNK623DG
  3. LNK616DG
  4. LNK607DG
  5. LNK601DG

These alternative models can be considered based on specific requirements and design constraints.

Word count: 320 words

רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של LNK6428K בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of LNK6428K in technical solutions:

  1. Q: What is LNK6428K? A: LNK6428K is a highly integrated, offline switcher IC designed for low-power applications.

  2. Q: What are the key features of LNK6428K? A: The key features of LNK6428K include primary-side regulation, high efficiency, accurate constant current control, and comprehensive protection features.

  3. Q: What are the typical applications of LNK6428K? A: LNK6428K is commonly used in LED lighting, smart home devices, industrial controls, and other low-power applications.

  4. Q: How does LNK6428K achieve primary-side regulation? A: LNK6428K uses a proprietary technology called EcoSmart™ to achieve primary-side regulation, eliminating the need for an optocoupler or secondary feedback circuitry.

  5. Q: Can LNK6428K operate in a wide input voltage range? A: Yes, LNK6428K can operate in a wide input voltage range, typically from 85VAC to 265VAC.

  6. Q: Does LNK6428K support dimming functionality for LED lighting? A: Yes, LNK6428K supports both analog and PWM dimming for LED lighting applications.

  7. Q: What is the efficiency of LNK6428K? A: LNK6428K offers high efficiency, typically up to 88%, which helps reduce power consumption and heat dissipation.

  8. Q: What protection features does LNK6428K provide? A: LNK6428K provides comprehensive protection features such as output overvoltage protection, output short-circuit protection, and thermal shutdown.

  9. Q: Can LNK6428K be used in offline flyback or buck-boost converter topologies? A: No, LNK6428K is specifically designed for offline flyback converter topologies.

  10. Q: Is LNK6428K compliant with safety standards? A: Yes, LNK6428K is compliant with various international safety standards such as UL, CE, and ENEC.

Please note that the answers provided here are general and may vary depending on specific application requirements.