AiT Semiconductor is proud to announce the release of the AP8022A, a high-performance offline primary-side regulation (PSR) power switch designed for low-power AC/DC charger and adapter applications. The AP8022A offers an innovative solution by integrating proprietary Constant Voltage (CV) and Constant Current (CC) controls, eliminating the need for optocouplers and A431 components.
Key features
- Primary-Side Sensing and Regulation: Eliminates the need for A431 and optocoupler.
- High Precision CV/CC Regulation: Achieves high performance with universal AC input.
- Multi-Mode PWM/PFM Operation: Improves efficiency across different load conditions.
- Integrated 2 A 1000 V MOSFET: Enhances power handling capabilities.
- Comprehensive Protection Features: Includes auto-recovery, cycle-by-cycle current limiting, VDD over-voltage protection, and more.
- Low Power Consumption: Consumes less than 75 mW in standby mode.
Key specifications
- Current Sensing: Adjustable CC point and output power via sense resistor at CS pin.
- Frequency Adaptation: Adaptive switching frequency based on output load.
- Protection Mechanisms: UVLO, OTP, cycle-by-cycle current limiting, and feedback loop open protection.
- Package: Available in DIP7, ensuring ease of integration and robust performance.
Key applications
The AP8022A is suitable for a wide range of low-power AC/DC offline SMPS applications, including:
- Industrial instruments (single/three-phase meters)
- Outdoor monitoring/protection equipment
- High input voltage AC/DC systems
