Power Integrations
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LNK306DG
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LNK306DG

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power offline switcher - High voltage power supply - Energy-efficient design - Compact size - Cost-effective solution

Package: SO-8C

Essence: The LNK306DG is a low power offline switcher IC designed for high voltage power supplies. It offers energy-efficient performance in a compact package, making it an ideal choice for various applications.

Packaging/Quantity: The LNK306DG is available in a standard SO-8C package. It is typically sold in reels of 2500 units.

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 3W
  • Frequency Range: 50Hz to 60Hz
  • Efficiency: Up to 85%
  • Operating Temperature Range: -40°C to +150°C
  • Standby Power Consumption: Less than 100mW

Pin Configuration

The LNK306DG has the following pin configuration:

  1. VDD - Power Supply Voltage
  2. BP/M - Brownout Protection / Multiplier Input
  3. FB - Feedback Input
  4. GND - Ground
  5. D - Drain
  6. S - Source
  7. NC - No Connection
  8. VCC - Control Supply Voltage

Functional Features

  • Integrated high-voltage MOSFET
  • Auto-restart protection for overvoltage and overcurrent conditions
  • Built-in brownout protection
  • Frequency jittering for reduced EMI emissions
  • Cycle-by-cycle current limit
  • Line undervoltage lockout with hysteresis
  • Thermal shutdown protection

Advantages and Disadvantages

Advantages: - Compact size allows for space-saving designs - Energy-efficient operation reduces power consumption - Integrated protection features enhance system reliability - Cost-effective solution for low power applications

Disadvantages: - Limited output power capability (up to 3W) - Not suitable for high-power applications

Working Principles

The LNK306DG operates as a low power offline switcher by converting the high voltage AC input into a regulated DC output. It utilizes an integrated high-voltage MOSFET to perform switching operations. The device incorporates various protection mechanisms such as overvoltage and overcurrent protection, brownout protection, and thermal shutdown to ensure safe and reliable operation.

Detailed Application Field Plans

The LNK306DG is commonly used in the following application fields:

  1. LED Lighting: The IC can be employed in LED driver circuits for efficient power management and control.
  2. Home Appliances: It finds application in low power appliances such as smart plugs, IoT devices, and small kitchen appliances.
  3. Industrial Control Systems: The IC can be utilized in industrial control systems that require compact and energy-efficient power supplies.
  4. Consumer Electronics: It is suitable for low power consumer electronic devices like set-top boxes, audio/video equipment, and gaming consoles.

Detailed and Complete Alternative Models

  1. LNK302DG
  2. LNK304DG
  3. LNK305DG
  4. LNK307DG

These alternative models offer similar functionality and characteristics to the LNK306DG, providing flexibility in design choices based on specific requirements.

In conclusion, the LNK306DG is a low power offline switcher IC designed for high voltage power supplies. Its compact size, energy-efficient performance, and integrated protection features make it a cost-effective solution for various applications in the field of power management.

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تکنیکی حل میں LNK306DG کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

Sure! Here are 10 common questions and answers related to the application of LNK306DG in technical solutions:

  1. Q: What is LNK306DG? A: LNK306DG is an integrated offline switcher IC designed for low-power applications, providing primary-side regulation without the need for an optocoupler.

  2. Q: What are the typical applications of LNK306DG? A: LNK306DG is commonly used in applications such as LED lighting, smart home devices, power adapters, and industrial controls.

  3. Q: What is the input voltage range supported by LNK306DG? A: LNK306DG supports a wide input voltage range from 85V AC to 265V AC.

  4. Q: What is the maximum output power that can be achieved with LNK306DG? A: The maximum output power depends on the specific design and thermal considerations, but typically it can handle up to 12W.

  5. Q: Does LNK306DG require an external feedback circuit? A: No, LNK306DG features an integrated feedback circuitry, eliminating the need for an external optocoupler or secondary-side feedback components.

  6. Q: Can LNK306DG operate in a constant current mode? A: Yes, LNK306DG can be configured to operate in constant current mode by using an external sense resistor.

  7. Q: What are the key advantages of using LNK306DG in a design? A: Some advantages include high efficiency, low component count, built-in protection features (such as overvoltage and overcurrent protection), and simplified design due to primary-side regulation.

  8. Q: Is LNK306DG suitable for dimmable lighting applications? A: Yes, LNK306DG can be used in dimmable lighting applications by incorporating external dimming control circuitry.

  9. Q: What is the typical operating frequency of LNK306DG? A: The typical operating frequency of LNK306DG is around 132 kHz, but it can vary depending on the specific design requirements.

  10. Q: Are there any recommended reference designs or application notes available for LNK306DG? A: Yes, the manufacturer provides reference designs and application notes that can help designers implement LNK306DG in their specific applications. These resources can be found on the manufacturer's website or through their technical support channels.

Please note that these answers are general and may vary based on specific design considerations and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information and guidance.