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LNK306DN
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LNK306DN

Product Overview

Category

LNK306DN belongs to the category of integrated circuits (ICs).

Use

The LNK306DN IC is primarily used for power management applications.

Characteristics

  • Package: DIP-7
  • Essence: Integrated Switcher
  • Packaging/Quantity: Tube, 50 pieces per tube

Specifications

The specifications of LNK306DN are as follows:

  • Input Voltage Range: 85 VAC to 265 VAC
  • Output Power: Up to 3.5 W
  • Output Voltage: 5 VDC
  • Output Current: 700 mA
  • Efficiency: Up to 80%
  • Frequency Range: 132 kHz to 150 kHz
  • Operating Temperature Range: -40°C to +150°C
  • Standby Power: <30 mW
  • Safety Standards: UL1577, CSA, IEC/EN60950-1

Detailed Pin Configuration

The pin configuration of LNK306DN is as follows:

  1. Drain
  2. Source
  3. Feedback
  4. Ground
  5. VCC
  6. Control
  7. Sense

Functional Features

The LNK306DN offers the following functional features:

  • Primary-side control eliminates the need for an optocoupler and secondary-side feedback components.
  • Auto-restart protection feature ensures continuous operation in the event of a fault condition.
  • Accurate output voltage regulation with tight line and load regulation.
  • Built-in frequency jittering for reduced EMI emissions.
  • Low standby power consumption for energy efficiency.

Advantages and Disadvantages

Advantages: - Simplified design due to primary-side control. - Cost-effective solution with fewer components. - High efficiency resulting in reduced power dissipation. - Wide input voltage range for universal compatibility.

Disadvantages: - Limited output power capability. - Requires careful consideration of thermal management due to high operating temperature range.

Working Principles

The LNK306DN operates on the principle of primary-side regulation. It integrates a power MOSFET, a controller, and various protection features into a single chip. The controller regulates the output voltage by adjusting the duty cycle of the power MOSFET based on the feedback signal. This eliminates the need for an optocoupler and secondary-side feedback components, simplifying the design and reducing cost.

Detailed Application Field Plans

The LNK306DN is commonly used in the following application fields:

  1. Power supplies for consumer electronics
  2. LED lighting drivers
  3. Home appliances
  4. Industrial control systems
  5. Smart meters

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LNK306DN are:

  1. LNK302DN
  2. LNK304DN
  3. LNK305DN
  4. LNK307DN
  5. LNK308DN

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

In conclusion, the LNK306DN is an integrated circuit primarily used for power management applications. Its primary-side control, compact package, and wide input voltage range make it a versatile choice for various industries. While it has limitations in terms of output power and thermal management, its advantages include simplified design, cost-effectiveness, and high efficiency.

技術ソリューションにおける LNK306DN 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 LNK306DN in technical solutions:

  1. Q: What is LNK306DN? A: LNK306DN 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 LNK306DN? A: LNK306DN 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 LNK306DN? A: LNK306DN 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 LNK306DN? A: The maximum output power depends on the specific design and thermal considerations, but typically it can handle up to 12W.

  5. Q: Does LNK306DN require an external heatsink? A: In most low-power applications, LNK306DN does not require an external heatsink due to its built-in thermal protection features. However, it is recommended to consult the datasheet and consider thermal requirements for your specific design.

  6. Q: Can LNK306DN operate in a constant current mode? A: Yes, LNK306DN can be configured to operate in a constant current mode by using an external sense resistor.

  7. Q: Is LNK306DN suitable for dimming applications? A: Yes, LNK306DN can be used in dimming applications by incorporating external components such as a PWM controller or a dimming circuit.

  8. Q: What are the key advantages of using LNK306DN in my design? A: Some advantages of using LNK306DN include simplified circuit design, reduced component count, high efficiency, and built-in protection features.

  9. Q: Can LNK306DN operate in a wide temperature range? A: Yes, LNK306DN is designed to operate reliably in a wide temperature range, typically from -40°C to +150°C.

  10. Q: Are there any evaluation boards or reference designs available for LNK306DN? A: Yes, Power Integrations, the manufacturer of LNK306DN, provides evaluation boards and reference designs that can help you get started with your application.

Please note that these answers are general and it's always recommended to refer to the datasheet and consult the manufacturer's guidelines for specific details and considerations related to your application.