The LNK6766E is a highly integrated and efficient offline switcher IC from Power Integrations, belonging to the LinkSwitch-HP family. It's designed for power supplies requiring high power and efficiency, offering comprehensive protection features and simplified design.

Applications

• Adapters and chargers: Powering laptops, tablets, and mobile devices.
• LED lighting: Driving high-brightness LEDs for commercial and residential lighting.
• Industrial power supplies: Powering industrial equipment and automation systems.
• Consumer electronics: Powering appliances, set-top boxes, and audio equipment.
• Auxiliary power supplies: Providing standby power for various electronic devices.

Features

• Integrated 725 V MOSFET: Eliminates the need for an external MOSFET, simplifying the design.
• Primary-side regulation (PSR): Enables accurate output voltage regulation without an optocoupler.
• High efficiency: Achieves efficiencies up to 90%, reducing energy waste and heat dissipation.
• Accurate constant voltage (CV) / constant current (CC) control: Provides precise control over output voltage and current.
• Advanced protection features: Includes over-temperature protection (OTP), over-voltage protection (OVP), over-current protection (OCP), and short-circuit protection (SCP).
• Frequency jittering: Reduces EMI emissions for cleaner operation.
• EcoSmart™ energy efficiency: Meets global energy efficiency standards.

Benefits

• Simplified design: Reduces component count and simplifies PCB layout.
• High efficiency: Lowers energy consumption and reduces heat dissipation, improving reliability.
• Robust protection: Protects the power supply and connected devices from damage.
• Accurate regulation: Provides stable and reliable output voltage and current.
• Reduced EMI: Minimizes electromagnetic interference, ensuring compliance with regulatory standards.
• Lower system cost: Reduces overall bill of materials (BOM) cost.

Additional Details

The LNK6766E incorporates a sophisticated feature set to enhance performance and reliability. It typically supports universal input voltage ranges (85-265 VAC). The device also features auto-restart capability after fault conditions, improving system uptime. The integrated MOSFET is optimized for high-voltage operation and offers excellent switching characteristics. The LNK6766E is available in an eSIP-7C package. The switching frequency is automatically adjusted to optimize efficiency and minimize EMI. It also has hysteretic thermal shutdown.