The CAP002DG is an integrated offline switcher IC manufactured by Power Integrations. It is designed to simplify the design and construction of low-power, high-efficiency power supplies. This IC integrates a high-voltage power MOSFET, oscillator, and control circuitry into a single package, reducing the number of external components required and improving overall system reliability.

Applications:

• Standby power supplies
• Chargers for mobile devices
• LED drivers
• Metering power supplies
• Auxiliary power supplies in larger systems

Features:

• Integrated high-voltage power MOSFET
• Self-biased: no external bias supply required
• EcoSmart™ energy efficiency
• Built-in protection features (Overvoltage, Overcurrent, Overtemperature)
• Simple and flexible design

Benefits:

• Reduces BOM (Bill of Materials) cost and complexity.
• Improves energy efficiency, reducing power consumption and heat dissipation.
• Simplifies power supply design with fewer external components.
• Enhances system reliability with integrated protection features.
• Enables compact power supply designs due to its small package size.

Additional Details:

The CAP002DG operates over a wide input voltage range, typically from 85 VAC to 265 VAC, making it suitable for global applications. It delivers up to 3.5W of output power. Key features include EcoSmart technology for minimizing standby power consumption and built-in protection against overvoltage, overcurrent, and overtemperature conditions.

The IC uses a simple on/off control scheme, providing excellent regulation over a wide load range. Its self-biased architecture eliminates the need for an external bias supply, further simplifying the design. The integrated power MOSFET is optimized for high-efficiency operation and low switching losses.

When designing with the CAP002DG, it's important to follow Power Integrations' design recommendations and guidelines to ensure optimal performance and safety. Proper selection of external components, such as the transformer and output capacitor, is crucial for achieving desired output voltage and current characteristics.

While listed as End-of-Life, designers should explore potential replacement options or alternative Power Integrations ICs that offer similar functionality and performance characteristics. Check the Power Integrations website for updated product information and design resources.