The SC1145DG is a highly integrated offline power conversion IC from Power Integrations, designed for use in a wide range of applications including adapters, chargers, and auxiliary power supplies. This device incorporates a primary-side regulation (PSR) controller, a high-voltage MOSFET, and other protection features to provide a compact and efficient power supply solution.

Applications:

• Adapters for mobile devices and other portable electronics.
• Chargers for smartphones, tablets, and power tools.
• Auxiliary power supplies in appliances and industrial equipment.
• Standby power supplies for consumer electronics.
• LED lighting power supplies.

Features:

• Integrated High-Voltage MOSFET: Simplifies design and reduces component count.
• Primary-Side Regulation (PSR): Eliminates the need for optocouplers, reducing cost and improving reliability.
• Accurate Constant Voltage (CV) and Constant Current (CC) Control: Provides precise output regulation.
• Advanced Protection Features: Includes over-voltage, over-current, and over-temperature protection.
• Low Standby Power Consumption: Meets stringent energy efficiency standards.
• Frequency Jittering: Reduces EMI emissions for easier compliance with regulatory standards.
• EcoSmart Technology: Enables energy-efficient designs.

Benefits:

• Reduced System Cost: Integration of multiple components lowers BOM cost.
• Simplified Design: PSR control eliminates the need for secondary-side feedback components.
• Improved Reliability: Robust protection features enhance system reliability.
• High Efficiency: Optimized for efficient power conversion.
• Compact Size: Enables smaller and lighter power supply designs.
• Meets Energy Efficiency Standards: Helps achieve compliance with global energy efficiency regulations.

Additional Details:

The SC1145DG operates with a universal input voltage range (85-265 VAC). It is available in a compact DIP-8 package. The device's integrated features and protection mechanisms make it a suitable choice for robust and efficient power supply designs. The frequency jittering feature minimizes EMI, simplifying the design and certification process. The device also incorporates features to automatically restart after fault conditions, enhancing system reliability and reducing downtime.