The BP2857D is a high-performance, constant current LED driver IC designed for non-isolated buck LED lighting applications manufactured by Bright Power Semiconductor Co., Ltd. It is optimized for excellent performance, high power factor, and low THD.

Applications

• LED Bulb Drivers
• LED Tube Drivers
• LED Downlights
• Other general LED lighting applications

Features

• High Power Factor (PF): Achieves high power factor correction to meet regulatory requirements.
• Low Total Harmonic Distortion (THD): Minimizes harmonic distortion in the AC input current.
• Constant Current (CC) Control: Provides accurate and stable LED current regulation.
• Built-in Protection Features: Includes over-voltage protection (OVP), over-current protection (OCP), short-circuit protection (SCP), and over-temperature protection (OTP) for enhanced reliability.
• Wide Input Voltage Range: Operates over a wide AC input voltage range.
• Non-Isolated Buck Topology: Simple and cost-effective circuit topology.

Benefits

• Improved Energy Efficiency: High power factor and low THD minimize energy waste.
• Compliant with Regulatory Standards: Meets power quality requirements for lighting applications.
• Stable LED Brightness: Accurate current regulation ensures consistent light output.
• Enhanced Reliability: Comprehensive protection features prevent damage to the LED driver and LEDs.
• Cost-Effective Solution: Simplified circuit topology reduces BOM cost.

Additional Details

The BP2857D employs advanced control algorithms to achieve high power factor and low THD. It also incorporates features to minimize EMI and improve system robustness. The device is available in a compact package for space-constrained applications.

Specific technical specifications, such as input voltage range, output current capability, switching frequency, power factor, THD, and protection thresholds, are available in the BP2857D datasheet. Proper component selection, PCB layout, and thermal management are essential for optimal performance and reliability. Bright Power provides detailed application notes and design guides to support engineers in implementing the BP2857D in their LED lighting designs.