LNK6663V LinkSwitch-HP IC

The LNK6663V Power Integrations LinkSwitch-HP IC is a high-efficiency offline switcher IC designed for compact, cost-effective AC-DC power supplies. It integrates a 725V power MOSFET, advanced control logic, and comprehensive protection features, making it ideal for consumer electronics, adapters, chargers, and standby power supplies.

Engineered by Power Integrations, the LNK6663V delivers excellent energy efficiency, low standby power consumption, and reliable operation under demanding conditions. Its LinkSwitch-HP architecture simplifies SMPS designs by reducing external components while maintaining high performance and safety compliance.

This IC is widely used in TV power boards, set-top boxes, LED drivers, and small appliances, making it a trusted solution for repair technicians, manufacturers, and electronics hobbyists across Bangladesh.

Whether you are repairing an SMPS circuit or building a new power supply design, the LNK6663V offers stable output, strong protection, and long-term reliability.

Technical Specifications:

• Manufacturer: Power Integrations

• Part Number: LNK6663V

• Series: LinkSwitch-HP

• MOSFET Voltage Rating: 725V

• Package Type: DIP-8 (Through-Hole)

• Topology: Flyback

• Input Voltage Range: Universal AC (85V – 265V AC)

• Output Power: Up to ~23W (open frame, 230VAC)

• Switching Frequency: ~66 kHz (internally set)

• Standby Power Consumption: < 50mW

• Protection Features:

  • Over-voltage protection

  • Over-current protection

  • Thermal shutdown

  • Auto-restart fault protection

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  Applications:

• • AC-DC adapters & chargers

  • LED power supplies

  • TV & set-top box SMPS

  • Home appliances

  • Standby power supplies