LNK616DG

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

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

Package: DIP-7 (Dual In-line Package 7 pins)

Essence: LNK616DG is a power management IC designed for efficient power conversion and control.

Packaging/Quantity: The LNK616DG is typically sold in reels of 2500 units per reel.

Specifications

The specifications of the LNK616DG are as follows:

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

Detailed Pin Configuration

The LNK616DG has a total of 7 pins, which are labeled as follows:

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

Functional Features

The LNK616DG offers the following functional features:

1. Primary-Side Regulation (PSR) technology for accurate output voltage regulation.
2. Auto-restart protection feature for enhanced safety and reliability.
3. Built-in frequency jittering for reduced EMI emissions.
4. Cycle-by-cycle current limit protection for overcurrent conditions.
5. Thermal shutdown protection to prevent overheating.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Wide input voltage range allows for versatile applications. - Compact size enables space-saving designs. - Reliable performance ensures long-term operation.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Lack of adjustable output voltage limits customization options.

Working Principles

The LNK616DG utilizes a flyback converter topology to convert the high-voltage AC input into a regulated low-voltage DC output. The primary-side regulation (PSR) technology enables accurate voltage control without the need for an optocoupler or secondary-side feedback circuitry. The IC operates by controlling the duty cycle of the internal power MOSFET to regulate the output voltage.

Detailed Application Field Plans

The LNK616DG is commonly used in various applications, including:

1. Power adapters for consumer electronics
2. LED lighting systems
3. Industrial power supplies
4. Home appliances
5. Battery chargers

Detailed and Complete Alternative Models

1. LNK616EG: Similar to LNK616DG but with extended temperature range (-40°C to +150°C).
2. LNK617DG: Higher output current version (up to 2A) of LNK616DG.
3. LNK618DG: Enhanced efficiency variant of LNK616DG (up to 95% efficiency).

These alternative models offer similar functionality with slight variations in specifications to cater to different application requirements.

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