LNK626PG LinkSwitch-CV Off-line Switcher – High-Efficiency AC-DC Power Conversion

Description

The LNK626PG is a member of the Power Integrations LinkSwitch-CV family, specifically designed for high-efficiency, low-cost AC-DC power conversion. This advanced off-line switcher IC integrates a 700V power MOSFET with a multi-mode controller, eliminating the need for an optocoupler and secondary-side control circuitry. By using primary-side regulation (PSR) techniques, it significantly reduces component count, board space, and overall system cost while maintaining excellent regulation across various load conditions.

Engineered to meet stringent global energy efficiency standards, the LNK626PG operates in a continuous conduction mode to deliver superior performance in constant-voltage (CV) applications. It features robust, built-in protection mechanisms, including thermal shutdown with automatic recovery, cycle-by-cycle current limit, and open-loop protection. Housed in a DIP-7 package, this device is the ideal solution for compact chargers, adapters, and consumer electronics where reliability, efficiency, and a reduced Bill of Materials (BOM) are paramount.

Key Features

• Primary-Side Regulation (PSR): Removes the need for an optocoupler and secondary-side feedback components, simplifying design and improving reliability.
• Integrated 700V MOSFET: High-voltage power stage optimized for off-line applications, reducing the number of external components required.
• High Efficiency: Enables the design of highly efficient power supplies that meet international energy-saving standards (e.g., DoE, ErP).
• Robust Protection Suite: Includes auto-restart thermal shutdown, over-voltage protection, and cycle-by-cycle current limiting for total system safety.
• Low Standby Power: Designed to minimize energy consumption during light-load or no-load conditions.

Application

• AC-DC Power Adapters: Perfect for compact power bricks for cell phones, tablets, and handheld devices.
• Consumer Electronics: Provides reliable power for appliances, set-top boxes, and multimedia systems.
• LED Lighting Drivers: Efficient, low-cost solution for localized LED power supply stages.
• Embedded Power Supplies: A versatile choice for auxiliary power supplies in industrial control and white goods.
• Cost-Sensitive Designs: Highly recommended for projects where maximizing board density and reducing component count is a priority.

Package Includes

• 1 x LNK626PG LinkSwitch-CV Off-line Switcher IC (DIP-7)

Technical Specifications

Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters, please refer to the official device datasheet.