The BP9915A is a high-precision, primary-side feedback LED driver IC manufactured by Bright Power Semiconductor. It is designed for isolated and non-isolated LED lighting applications. It allows for accurate constant current (CC) regulation without the use of an optocoupler, simplifying the design and reducing the bill of materials (BOM) cost. This device integrates advanced features to ensure high performance and reliability in a variety of lighting applications.

Applications:

• LED bulb applications
• LED tube lighting
• LED street lighting
• General-purpose LED lighting systems
• Isolated and non-isolated LED power supplies

Features:

• Primary-side feedback control eliminates the need for an optocoupler
• Accurate constant current (CC) regulation
• Integrated 650V high voltage power MOSFET
• Low start-up current
• Over-temperature protection (OTP)
• Over-voltage protection (OVP)
• Short-circuit protection (SCP)
• Open-circuit protection
• Under-voltage lockout (UVLO)
• Frequency jittering for improved EMI performance
• Built-in soft start

Benefits:

• Reduced BOM cost due to optocoupler-free design
• Simplified circuit design
• Improved reliability and robustness
• High efficiency and power factor
• Excellent line and load regulation
• Comprehensive protection features ensure safe operation
• Enhanced EMI performance reduces noise

Additional Details:

The BP9915A operates in boundary conduction mode (BCM), which helps to improve efficiency and reduce EMI. It also features a built-in soft-start function to minimize stress on the power MOSFET during start-up. The IC is available in a compact package, making it suitable for space-constrained applications. The operating temperature range is typically -40°C to +85°C. The BP9915A is designed to meet international safety standards and regulations for LED lighting applications.