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LNK6774E
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LNK6774E

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

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

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

Essence: The LNK6774E is a power management IC designed for efficient energy conversion and control in various electronic devices.

Packaging/Quantity: The LNK6774E is typically packaged in reels containing 2500 units.

Specifications

The LNK6774E has the following specifications:

  • Input Voltage Range: 85VAC to 265VAC
  • Output Voltage: 5VDC
  • Output Current: 1A
  • Switching Frequency: 132 kHz
  • Standby Power Consumption: <100 mW
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The LNK6774E features a DIP-7 package with the following pin configuration:

  1. VDD: Power supply input
  2. BP/MODE: Feedback and control mode selection
  3. FB: Feedback input for output voltage regulation
  4. GND: Ground reference
  5. DRAIN: High-voltage power MOSFET drain connection
  6. SOURCE: High-voltage power MOSFET source connection
  7. VCC: Supply voltage for internal control circuitry

Functional Features

The LNK6774E offers the following 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 fault conditions.
  • Frequency jittering reduces EMI emissions.
  • Built-in over-temperature, over-voltage, and over-current protection enhance system reliability.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Wide input voltage range allows for versatile applications. - Integrated protection features improve system safety and reliability. - Primary-side control simplifies circuit design and reduces component count.

Disadvantages: - Limited output current may not be suitable for high-power applications. - DIP-7 package may require additional space compared to smaller packages.

Working Principles

The LNK6774E utilizes primary-side control to regulate the output voltage. It operates by modulating the duty cycle of the internal power MOSFET based on the feedback signal from the FB pin. The integrated control circuitry ensures stable and efficient energy conversion while providing various protection mechanisms.

Detailed Application Field Plans

The LNK6774E is commonly used in the following applications:

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

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LNK6774E include:

  1. LNK6774G
  2. LNK6774F
  3. LNK6774D
  4. LNK6774C

These models are part of the same product family and provide comparable features and specifications.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LNK6774E dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of LNK6774E in technical solutions:

  1. Q: What is LNK6774E? A: LNK6774E is a highly integrated, offline switcher IC designed for low-power applications.

  2. Q: What are the key features of LNK6774E? A: The key features of LNK6774E include primary-side regulation, high efficiency, accurate constant current control, and comprehensive protection features.

  3. Q: What are the typical applications of LNK6774E? A: LNK6774E is commonly used in LED lighting, smart home devices, industrial controls, and other low-power applications.

  4. Q: How does LNK6774E achieve primary-side regulation? A: LNK6774E uses an innovative control algorithm that eliminates the need for an optocoupler or secondary feedback circuitry, reducing component count and cost.

  5. Q: Can LNK6774E support dimming functionality for LED lighting? A: Yes, LNK6774E can support both analog and PWM dimming methods for LED lighting applications.

  6. Q: What is the efficiency range of LNK6774E? A: LNK6774E offers high efficiency ranging from 80% to over 90%, depending on the specific application and operating conditions.

  7. Q: Does LNK6774E have built-in protection features? A: Yes, LNK6774E incorporates various protection features such as thermal shutdown, output short-circuit protection, and open-loop protection.

  8. Q: What is the input voltage range supported by LNK6774E? A: LNK6774E supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global applications.

  9. Q: Can LNK6774E operate in a wide temperature range? A: Yes, LNK6774E is designed to operate reliably in a temperature range of -40°C to +150°C.

  10. Q: Is LNK6774E compliant with safety and regulatory standards? A: Yes, LNK6774E is compliant with various safety standards such as UL, EN, and IEC, ensuring its suitability for different markets.

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