LNK6779K

LNK6779K - LinkSwitch-HP Integrated Offline Switcher IC

The LNK6779K from Power Integrations is a high-performance 77W isolated flyback AC-DC converter IC from the LinkSwitch-HP family. This integrated offline switcher combines a 725V power MOSFET with advanced control circuitry, delivering reliable power conversion for industrial, consumer, and commercial applications.

Key Features & Benefits

• High Integration: 725V breakdown voltage MOSFET with integrated control reduces component count and board space
• 77W Power Output: Ideal for mid-power AC-DC applications including adapters, chargers, and auxiliary supplies
• Comprehensive Protection: Built-in current limiting, overload, over-temperature, over-voltage, and short-circuit protection ensures safe, reliable operation
• Efficient Switching: 120-136kHz frequency range with 64% duty cycle optimizes transformer utilization and efficiency
• Isolated Flyback Topology: Provides galvanic isolation for safety-critical applications
• Wide Operating Range: -40°C to 150°C junction temperature supports harsh environments
• Surface Mount Package: 12-ESOP (12-BESOP) with exposed pad for enhanced thermal performance
• RoHS Compliant: Meets environmental standards for global markets

Typical Applications

• AC-DC power adapters and chargers (up to 77W)
• Industrial control and automation power supplies
• Consumer electronics auxiliary power
• LED lighting drivers
• Home appliance power systems
• Telecom and networking equipment

Why Choose LNK6779K?

The LinkSwitch-HP family delivers exceptional performance and reliability for cost-sensitive designs. With integrated protection features and minimal external components, the LNK6779K reduces design complexity, accelerates time-to-market, and improves overall system reliability. Power Integrations' proven technology ensures long-term availability and full technical support.

Authorized Distributor - Full Traceability

We supply 100% authentic LNK6779K ICs with complete manufacturer documentation, traceability, and warranty support. All units are sourced through authorized channels to ensure quality and authenticity for your critical designs.

Need technical support or design assistance? Contact our applications team for reference designs, evaluation support, and long-term availability planning.

• LNK6779K.pdf