LNK306PN

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power offline switcher - High voltage power conversion - Energy-efficient design - Compact size - Cost-effective solution

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

Essence: LNK306PN is a power management IC designed for low power offline switchers. It provides high voltage power conversion with energy-efficient performance in a compact package.

Packaging/Quantity: The LNK306PN is typically sold in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

The LNK306PN has the following specifications:

• Input Voltage Range: 85 VAC to 265 VAC
• Output Power: Up to 3 W
• Output Voltage: Configurable (based on external components)
• Frequency Range: 66 kHz to 132 kHz
• Operating Temperature Range: -40°C to +150°C
• Efficiency: Up to 80%
• Standby Power Consumption: Less than 30 mW

Detailed Pin Configuration

The LNK306PN features a DIP-7 package with the following pin configuration:

1. Drain (D)
2. Source (S)
3. Control (C)
4. Ground (GND)
5. Feedback (FB)
6. Sense (SNS)
7. VCC

Functional Features

The LNK306PN offers several functional features, including:

• Primary-side control without optocoupler feedback
• Auto-restart protection for overvoltage, overload, and open-loop faults
• Frequency jittering for reduced EMI emissions
• Built-in thermal shutdown protection
• Cycle-by-cycle current limit

Advantages and Disadvantages

Advantages: - Simplified design due to primary-side control - Cost-effective solution for low power applications - High efficiency and energy savings - Compact size for space-constrained designs - Built-in protection features enhance system reliability

Disadvantages: - Limited output power capability (up to 3 W) - Not suitable for high-power applications

Working Principles

The LNK306PN utilizes a primary-side control scheme, eliminating the need for an optocoupler feedback circuit. It operates by regulating the duty cycle of the internal power switch based on the feedback signal from the secondary side. This allows for efficient power conversion while maintaining accurate voltage regulation.

The IC incorporates various protection mechanisms such as auto-restart, thermal shutdown, and cycle-by-cycle current limit to ensure safe operation under fault conditions. The frequency jittering feature helps reduce electromagnetic interference (EMI) emissions, ensuring compliance with regulatory standards.

Detailed Application Field Plans

The LNK306PN is commonly used in various low-power applications, including:

1. LED Lighting: Provides efficient power conversion for LED drivers in lighting systems.
2. Home Appliances: Enables power management in small appliances such as coffee makers, electric shavers, and kitchen gadgets.
3. Consumer Electronics: Supports power supply requirements in devices like set-top boxes, routers, and audio/video equipment.
4. Industrial Control Systems: Facilitates power management in industrial control panels, motor drives, and automation equipment.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LNK306PN include:

1. LNK302PN
2. LNK304PN
3. LNK305PN
4. LNK307PN

These models are part of the same product family and provide comparable performance and features.

In conclusion, the LNK306PN is a low power offline switcher IC designed for efficient power management in various applications. Its primary-side control scheme, compact size, and built-in protection features make it a cost-effective and reliable solution for low-power systems.