Power Integrations
התמונה עשויה להיות ייצוג.
ראה מפרטים לפרטי מוצר.
LNK454DG-TL
צפה בפרטים DataSheets

LNK454DG-TL

Product Overview

Category

LNK454DG-TL belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications.

Characteristics

  • Package: DPAK-7
  • Essence: Offline Switcher IC
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

The specifications for LNK454DG-TL are as follows:

  • Input Voltage Range: 85 VAC to 265 VAC
  • Output Power: Up to 10 W
  • Frequency Range: 132 kHz to 150 kHz
  • Efficiency: Up to 86%
  • Operating Temperature Range: -40°C to +150°C
  • Standby Power Consumption: Less than 30 mW

Detailed Pin Configuration

The pin configuration of LNK454DG-TL is as follows:

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

Functional Features

  • Integrated high-voltage MOSFET
  • Advanced protection features including thermal shutdown, output overvoltage protection, and hysteretic thermal foldback
  • Auto-restart operation in case of fault conditions
  • Frequency jittering for reduced EMI emissions
  • Built-in soft-start for controlled startup

Advantages and Disadvantages

Advantages

  • Compact size and low profile package
  • High efficiency for energy-saving applications
  • Wide input voltage range for universal compatibility
  • Robust protection features for enhanced reliability
  • Cost-effective solution for power supply designs

Disadvantages

  • Limited output power capability compared to higher-rated ICs
  • Requires external components for complete power supply implementation

Working Principles

LNK454DG-TL operates on the principle of a flyback converter. It uses a high-voltage MOSFET to switch the input voltage and store energy in an inductor during the switch-on period. This stored energy is then transferred to the output during the switch-off period, providing a regulated output voltage.

Detailed Application Field Plans

LNK454DG-TL finds applications in various fields, including:

  1. Consumer electronics
  2. LED lighting
  3. Industrial equipment
  4. Home appliances
  5. Power adapters

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LNK454DG-TL are:

  1. LNK455DG-TL
  2. LNK456DG-TL
  3. LNK457DG-TL
  4. LNK458DG-TL
  5. LNK459DG-TL

These models offer similar functionality and characteristics, allowing designers to choose the most suitable option for their specific requirements.

In conclusion, LNK454DG-TL is an integrated circuit used in power supply applications. It offers a compact size, high efficiency, and robust protection features. Its working principle is based on a flyback converter. With its wide range of applications and availability of alternative models, LNK454DG-TL provides a versatile solution for various power supply designs.

Word count: 314

רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של LNK454DG-TL בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of LNK454DG-TL in technical solutions:

  1. Q: What is LNK454DG-TL? A: LNK454DG-TL is a highly integrated, energy-efficient power conversion IC designed for offline flyback converters.

  2. Q: What are the typical applications of LNK454DG-TL? A: LNK454DG-TL is commonly used in applications such as LED lighting, appliances, industrial controls, and IoT devices.

  3. Q: What is the input voltage range supported by LNK454DG-TL? A: LNK454DG-TL supports a wide input voltage range from 85VAC to 265VAC.

  4. Q: What is the maximum output power that can be achieved with LNK454DG-TL? A: The maximum output power depends on the specific design and operating conditions, but typically ranges from 5W to 15W.

  5. Q: Does LNK454DG-TL have built-in protection features? A: Yes, LNK454DG-TL incorporates various protection features like over-temperature protection, output short-circuit protection, and open-loop protection.

  6. Q: Can LNK454DG-TL operate in a constant current mode? A: Yes, LNK454DG-TL can be configured to operate in constant current mode, making it suitable for driving LED lighting applications.

  7. Q: What is the efficiency of LNK454DG-TL? A: LNK454DG-TL offers high efficiency, typically exceeding 85%, which helps reduce power dissipation and improve overall system performance.

  8. Q: Is LNK454DG-TL compatible with dimming functionality? A: Yes, LNK454DG-TL can be used with external dimming circuits to enable dimming functionality in LED lighting applications.

  9. Q: Does LNK454DG-TL require an external heatsink for thermal management? A: The need for an external heatsink depends on the specific design and operating conditions. In some cases, a heatsink may be required to ensure proper thermal management.

  10. Q: Are there any reference designs available for LNK454DG-TL? A: Yes, Power Integrations provides reference designs and application notes that can help engineers in implementing LNK454DG-TL in their technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and design considerations of each application.