The BP9919F is a high-performance, primary-side feedback constant current (CC) LED driver IC manufactured by Bright Power Semiconductor Co., Ltd. It's designed for LED lighting applications, providing a cost-effective and efficient solution by eliminating the need for secondary-side feedback circuitry. This simplifies the design process and reduces the overall system cost.

Applications

• LED Bulb Lighting: Commonly used in LED bulbs to ensure consistent brightness and extended lifespan through constant current regulation.
• LED Tube Lighting: Implemented in LED tube lights for uniform illumination and efficient power conversion.
• LED Panel Lighting: Integrated into LED panel lights to provide stable current and high energy efficiency.
• LED Downlights: Employed in LED downlights to ensure consistent performance and optimal brightness levels.
• LED Street Lighting: Suitable for LED street lighting applications where constant current and high reliability are crucial.

Features

• Primary-Side Feedback Control: Simplifies design and reduces cost by removing the need for secondary feedback components.
• Constant Current (CC) Output: Ensures consistent LED brightness by providing a stable and precise current output.
• High Efficiency: Minimizes power consumption and heat generation, leading to improved energy efficiency.
• Low Total Harmonic Distortion (THD): Enhances power quality and reduces electromagnetic interference (EMI).
• Over-Temperature Protection (OTP): Protects the driver from overheating, ensuring long-term reliability.
• Open-Circuit Protection: Safeguards the circuit in the event of an open-circuit condition.
• Short-Circuit Protection: Protects the driver from damage caused by short-circuit conditions.

Benefits

• Reduced System Cost: Eliminating secondary feedback components significantly reduces the overall bill of materials.
• Simplified Design: Easier circuit design due to the elimination of complex feedback networks.
• High Reliability: Integrated protection features enhance the reliability and lifespan of the LED driver and lighting system.
• Consistent LED Brightness: Constant current output ensures that all LEDs in the system operate at a uniform brightness.
• Improved Energy Efficiency: High efficiency reduces energy consumption and lowers operating costs.

Additional Details

The BP9919F is designed to operate with a wide AC input voltage range, making it suitable for universal mains voltage applications. It supports various topologies, including buck, buck-boost, and flyback converters. The device is optimized for low EMI and complies with relevant safety and regulatory standards. The switching frequency is carefully selected to minimize electromagnetic interference. It is typically available in small outline packages (SOP), facilitating easy PCB layout and design, offering a robust and cost-effective solution for diverse LED lighting needs.