LNK364DG

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Wide input voltage range - Over-temperature protection - Over-voltage protection - Under-voltage lockout - Auto-restart protection

Package: SO-8C

Essence: LNK364DG is a power management IC designed for low power applications. It provides efficient and reliable power conversion with various built-in protections.

Packaging/Quantity: The LNK364DG is available in a standard SO-8C package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 85V to 265V AC
• Output Voltage: 5V DC
• Output Current: Up to 1A
• Switching Frequency: 132 kHz
• Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The LNK364DG has eight pins arranged as follows:

1. VCC - Power supply input
2. BP/MULT - Bypass/Multiplication pin
3. FB - Feedback pin
4. GND - Ground
5. DRAIN - Power switch drain
6. SOURCE - Power switch source
7. NC - No connection
8. VOUT - Output voltage

Functional Features

1. Low Power Consumption: The LNK364DG minimizes power losses, making it suitable for energy-efficient applications.
2. High Efficiency: The IC offers high conversion efficiency, reducing wasted energy.
3. Wide Input Voltage Range: It can handle a wide range of input voltages, providing flexibility in various applications.
4. Over-Temperature Protection: The IC includes thermal shutdown protection to prevent damage due to excessive heat.
5. Over-Voltage Protection: It safeguards the circuit from voltage spikes, ensuring reliable operation.
6. Under-Voltage Lockout: The IC shuts down when the input voltage falls below a certain threshold, protecting connected devices.
7. Auto-Restart Protection: In case of a fault condition, the IC automatically restarts after a short delay, improving system reliability.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Wide input voltage range allows for versatile applications - Built-in protections enhance system reliability - Compact package size enables space-saving designs

Disadvantages: - Limited output current capacity (up to 1A) - Not suitable for high-power applications

Working Principles

The LNK364DG is based on a flyback converter topology. It utilizes a power switch, transformer, and control circuitry to convert the input AC voltage into a regulated DC output voltage. The control circuitry ensures efficient power transfer and monitors various parameters to provide protection features.

Detailed Application Field Plans

The LNK364DG is commonly used in low-power applications that require efficient power management. Some typical application fields include:

1. LED Lighting: The IC can be used in LED drivers for residential and commercial lighting applications.
2. Consumer Electronics: It is suitable for power supplies in small electronic devices like set-top boxes, routers, and IoT devices.
3. Home Appliances: The IC can be integrated into power management circuits of appliances such as refrigerators, air conditioners, and washing machines.
4. Industrial Control Systems: It finds applications in industrial automation systems, motor control, and power supplies for control panels.

Detailed and Complete Alternative Models

1. TNY364DG: Similar to LNK364DG, but with additional features like frequency jittering and cycle-by-cycle current limit.
2. FAN364DG: A variant designed specifically for fan control applications, offering optimized features for fan speed regulation.
3. TOP364DG: An alternative model with enhanced over-voltage protection and extended temperature range for harsh environments.

These alternative models provide similar functionality to the LNK364DG but may offer additional features or specifications tailored to specific application requirements.

Word count: 547