LNK604PG - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Compact size - Wide input voltage range

Package: PG-DIP-7

Essence: LNK604PG is a power management integrated circuit designed for low power applications. It offers high efficiency and compact size, making it suitable for various electronic devices.

Packaging/Quantity: The LNK604PG is available in a PG-DIP-7 package and is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 85VAC to 265VAC
• Output Voltage: 5V
• Output Current: 0.1A to 0.6A
• Efficiency: Up to 80%
• Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The LNK604PG has the following pin configuration:

1. VDD: Power supply input
2. BP/MODE: Feedback and control pin
3. GND: Ground reference
4. DRAIN: High-voltage power MOSFET drain connection
5. SOURCE: High-voltage power MOSFET source connection
6. FB: Feedback pin for output voltage regulation
7. VOUT: Output voltage pin

Functional Features

• Primary-side control eliminates the need for an optocoupler or secondary-side feedback circuitry.
• Auto-restart protection feature ensures continuous operation even in the event of a fault condition.
• Built-in frequency jittering reduces EMI emissions.
• Accurate output voltage regulation with tight line and load regulation.

Advantages and Disadvantages

Advantages: - Simplified design due to primary-side control - Enhanced reliability with auto-restart protection - Reduced electromagnetic interference (EMI) emissions - Precise output voltage regulation

Disadvantages: - Limited output current range - Higher operating temperature range compared to some alternatives

Working Principles

The LNK604PG utilizes primary-side control, which eliminates the need for an optocoupler or secondary-side feedback circuitry. It operates by regulating the power delivered to the load through a high-voltage power MOSFET. The integrated circuit continuously monitors the output voltage and adjusts the duty cycle of the power MOSFET to maintain a stable output.

Detailed Application Field Plans

The LNK604PG is commonly used in low-power applications that require efficient power management. Some typical application fields include:

1. Consumer Electronics:

   • Set-top boxes
   • Audio/video equipment
   • Home automation devices

2. LED Lighting:

   • LED bulbs
   • LED strips
   • LED drivers

3. Industrial Control Systems:

   • Power supplies for industrial equipment
   • Motor control systems
   • HVAC systems

Detailed and Complete Alternative Models

1. LNK603PG: Similar to LNK604PG but with a lower output current range (0.1A to 0.3A).
2. LNK605PG: Similar to LNK604PG but with a higher output current range (0.1A to 0.8A).
3. LNK606PG: Similar to LNK604PG but with extended operating temperature range (-40°C to +175°C).

These alternative models offer similar functionality and characteristics, allowing users to choose the most suitable option based on their specific requirements.

In conclusion, the LNK604PG is a power management IC designed for low-power applications. Its primary-side control, compact size, and high efficiency make it a popular choice in various electronic devices. With accurate output voltage regulation and built-in protection features, it offers reliable performance. However, its limited output current range and higher operating temperature range should be considered when selecting alternatives.