LNK615PG

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Compact size - Wide input voltage range - Over-temperature protection - Over-voltage protection - Short-circuit protection

Package: DIP-8 (Dual In-line Package)

Essence: LNK615PG is a power management integrated circuit designed for efficient power conversion and regulation.

Packaging/Quantity: LNK615PG 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
• Operating Temperature Range: -40°C to +150°C
• Efficiency: Up to 85%
• Standby Power Consumption: Less than 100mW

Detailed Pin Configuration

LNK615PG features the following pin configuration:

1. VDD: Power supply input
2. BP/M: Brownout/Mode selection pin
3. FB: Feedback pin for output voltage regulation
4. GND: Ground reference
5. D: Drain pin for primary side switch
6. S: Source pin for primary side switch
7. VOUT: Output voltage pin
8. NC: No connection

Functional Features

1. Primary-Side Control: The LNK615PG utilizes primary-side control, eliminating the need for an optocoupler or secondary feedback circuitry.
2. Frequency Modulation: The IC employs frequency modulation to achieve high efficiency across a wide load range.
3. Auto-restart Protection: In case of a fault condition, the IC automatically enters auto-restart mode after a predetermined delay, ensuring continuous operation.
4. Cycle-by-Cycle Current Limiting: The IC incorporates cycle-by-cycle current limiting to protect against overloads and short-circuits.
5. Output Over-Voltage Protection: LNK615PG includes output over-voltage protection, safeguarding connected devices from excessive voltage levels.

Advantages

1. Simplified Design: Primary-side control eliminates the need for secondary-side feedback components, reducing system complexity and cost.
2. High Efficiency: Frequency modulation technique ensures high efficiency across various load conditions, resulting in energy savings.
3. Compact Size: LNK615PG's compact DIP-8 package allows for space-efficient integration into various applications.
4. Wide Input Voltage Range: The IC can operate within a wide input voltage range, making it suitable for global use.
5. Robust Protection Features: Over-temperature, over-voltage, and short-circuit protections enhance system reliability and longevity.

Disadvantages

1. Limited Output Current: LNK615PG is designed for low to moderate power applications and may not be suitable for high-power requirements.
2. Noisy Operation: Due to primary-side control, the IC may introduce some level of noise into the system, requiring additional filtering measures.

Working Principles

LNK615PG utilizes a flyback converter topology to convert the input AC voltage to a regulated DC output voltage. The primary-side control scheme enables the IC to regulate the output voltage without the need for an optocoupler or secondary feedback circuitry. By modulating the switching frequency, the IC achieves efficient power conversion across different load conditions. The built-in protection features ensure safe operation and protect the connected devices from faults.

Detailed Application Field Plans

1. Power Adapters: LNK615PG can be used in power adapters for various electronic devices, providing efficient and reliable power conversion.
2. LED Lighting: The IC is suitable for LED lighting applications, offering high efficiency and compact size for space-constrained designs.
3. Home Appliances: LNK615PG can be integrated into home appliances such as refrigerators, air conditioners, and washing machines to regulate power supply efficiently.
4. Industrial Equipment: The IC finds application in industrial equipment, including motor drives, control systems, and power supplies.

Detailed and Complete Alternative Models

1. LNK616PG
2. LNK617PG
3. LNK618PG
4. LNK619PG
5. LNK620PG

These alternative models offer similar functionality and characteristics to LNK615PG, providing flexibility in choosing the most suitable option for specific applications.

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