LNK6773V

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: SOP-7

Essence: The LNK6773V is a power management IC designed for efficient and reliable power conversion in various applications.

Packaging/Quantity: The LNK6773V is available in a standard SOP-7 package. It is typically sold in reels of 2500 units.

Specifications

Input Voltage Range: 85V AC to 265V AC
Output Voltage: 5V DC
Output Current: Up to 1A
Efficiency: Up to 90%
Standby Power Consumption: Less than 100mW
Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LNK6773V features the following pin configuration:

VCC: Power supply input
BP/MODE: Feedback and control pin
FB: Feedback pin
GND: Ground
DRAIN: Switching transistor drain
SOURCE: Switching transistor source
NC: No connection

Functional Features

Primary-side regulation (PSR) technology for accurate output voltage regulation
Built-in protection features such as over-temperature, over-voltage, and over-current protection
Auto-restart feature for fault recovery
Frequency jittering for reduced EMI emissions
Cycle-by-cycle current limit for enhanced safety

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range allows for versatile applications - Compact SOP-7 package for space-constrained designs - Comprehensive protection features ensure system reliability

Disadvantages: - Limited output current capability (up to 1A) - Requires external components for complete power supply design

Working Principles

The LNK6773V utilizes primary-side regulation (PSR) technology, where the feedback and control signals are derived from the primary side of the power transformer. This eliminates the need for an optocoupler or secondary-side feedback circuitry, simplifying the design and reducing costs.

The IC operates in a quasi-resonant mode, which minimizes switching losses and improves overall efficiency. It employs a frequency jittering technique to reduce electromagnetic interference (EMI) emissions.

Detailed Application Field Plans

The LNK6773V is suitable for a wide range of applications, including but not limited to: - AC/DC power supplies - LED lighting - Home appliances - Industrial equipment - Consumer electronics

Detailed and Complete Alternative Models

LNK6773V-TR: Same specifications and features as LNK6773V, but available in tape and reel packaging.
LNK6773V-TL: Same specifications and features as LNK6773V, but available in tube packaging.
LNK6773V-G: Same specifications and features as LNK6773V, but with extended temperature range (-40°C to +150°C).

These alternative models provide flexibility in packaging options and temperature ranges to suit different application requirements.

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기술 솔루션에 LNK6773V 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of LNK6773V in technical solutions:

Q: What is LNK6773V? A: LNK6773V is a highly integrated, offline switcher IC designed for low-power applications.
Q: What are the key features of LNK6773V? A: The key features of LNK6773V include primary-side regulation, high efficiency, accurate constant current control, and built-in protection features.
Q: What are the typical applications of LNK6773V? A: LNK6773V is commonly used in LED lighting, smart home devices, industrial controls, and other low-power applications.
Q: How does LNK6773V achieve primary-side regulation? A: LNK6773V uses a proprietary technology called EcoSmart™ to achieve primary-side regulation, eliminating the need for an optocoupler or secondary feedback circuitry.
Q: Can LNK6773V operate in a wide input voltage range? A: Yes, LNK6773V can operate in a wide input voltage range, typically from 85VAC to 265VAC.
Q: Does LNK6773V support dimming functionality for LED lighting applications? A: Yes, LNK6773V supports both analog and PWM dimming for LED lighting applications.
Q: What is the efficiency of LNK6773V? A: LNK6773V offers high efficiency, typically up to 88%, which helps reduce power consumption and heat dissipation.
Q: What protection features are included in LNK6773V? A: LNK6773V includes protection features such as output overvoltage protection, output short-circuit protection, and thermal shutdown.
Q: Can LNK6773V be used in offline flyback converter designs? A: Yes, LNK6773V is specifically designed for offline flyback converter topologies.
Q: Are there any reference designs available for LNK6773V? A: Yes, Power Integrations provides reference designs and application notes to help engineers implement LNK6773V in their technical solutions.

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