The OB2269APC is a highly integrated and cost-effective current mode PWM controller, specifically designed for offline flyback converter applications. This IC offers comprehensive protection features and excellent performance, making it an ideal choice for various power supply applications.

Applications:

• Power adapters for mobile phones and tablets.
• Standby power supplies for televisions and other consumer electronics.
• Open-frame power supplies for set-top boxes.
• LED lighting drivers.
• Battery chargers.

Features:

• Current Mode PWM Control: Provides stable operation and excellent dynamic response.
• Low Startup Current: Minimizes power loss during startup.
• Internal Slope Compensation: Prevents sub-harmonic oscillation for improved stability.
• Cycle-by-Cycle Current Limiting: Protects the power MOSFET from overcurrent conditions.
• Over Voltage Protection (OVP): Prevents damage to the load due to excessive output voltage.
• Over Temperature Protection (OTP): Protects the IC from overheating.
• Short Circuit Protection (SCP): Protects the power supply from short circuit conditions.
• Open Loop Protection: Protects against damage from open loop faults.
• Frequency Jittering: Reduces EMI (Electromagnetic Interference).
• Available in DIP-8 Package: Provides a compact and cost-effective solution.

Benefits:

• High Efficiency: Reduces power consumption and heat dissipation.
• Reliable Operation: Comprehensive protection features ensure reliable operation.
• Cost-Effective: Integrated features and a compact package provide a cost-effective solution.
• Simplified Design: Current mode control simplifies power supply design.
• Improved EMI Performance: Frequency jittering reduces electromagnetic interference.

Additional Details:

The OB2269APC operates using current mode PWM control, offering excellent dynamic response and simplifying control loop design. Its low startup current helps to minimize power loss during startup. The internal slope compensation effectively prevents sub-harmonic oscillation, ensuring stable operation over a wide range of operating conditions. Comprehensive protection features, including cycle-by-cycle current limiting, over voltage protection, over temperature protection, and short circuit protection, ensure robust and reliable performance. Furthermore, the incorporation of frequency jittering significantly reduces EMI, simplifying the design and certification process. The OB2269APC is available in a DIP-8 package, providing a compact and cost-effective solution for various power supply designs. The integrated features and robust protection capabilities make it a suitable choice for applications requiring both high performance and reliability.