BP2831AJ Non-Isolated Buck LED Driver IC - BP Semi - Regency Semiconductors

💡 BP2831AJ Non-Isolated Buck LED Driver IC – Now in Stock

We are pleased to announce the availability of the BP2831AJ high-precision step-down (buck) constant current LED driver IC from Bright Power Semiconductor (BPSemi). This highly integrated IC is designed for non-isolated LED lighting applications, delivering exceptional performance with minimal external components.

With a built-in 500V power MOSFET, critical conduction mode (CRM) operation, and ±5% LED current accuracy, the BP2831AJ is the ideal solution for cost-effective, reliable LED lighting designs.

💡 What is the BP2831AJ?

The BP2831AJ is a high-precision buck (step-down) constant current LED driver IC designed for non-isolated LED lighting applications. It operates in indicator current critical conduction mode (CRM) and integrates a 500V power MOSFET, eliminating the need for auxiliary winding detection and supply. This results in a very low external component count, reduced system cost, and compact PCB design.

The IC delivers ±5% LED output current accuracy across a wide input voltage range (85V–265V AC) with excellent line and load regulation.

✨ Why Choose the BP2831AJ?

• 🔋 High Integration – Built-in 500V power MOSFET reduces external components and simplifies design
• ⚡ Critical Conduction Mode (CRM) – Delivers high efficiency and low EMI
• 🎯 High Accuracy – ±5% LED current accuracy ensures consistent brightness across units
• 🔌 No Auxiliary Winding Required – Self-powered design eliminates the need for auxiliary winding detection and supply
• 🛡️ Comprehensive Protection – LED open/short protection, CS resistor short protection, undervoltage lockout, and thermal regulation
• 📦 SOP8 Package – Compact and easy to integrate
• 📈 Wide Input Voltage – Supports 85V–265V AC universal input
• 🌡️ Thermal Regulation – Automatically reduces output current at 150°C to protect the system

🔊 Applications

The BP2831AJ is ideal for:

• LED Candle Lamps – Compact, efficient drivers
• LED Bulbs (A19, GU10) – Retrofit LED lighting
• Other LED Lighting – Downlights, panel lights, and more

📦 Key Specifications

• Part Number: BP2831AJ
• Brand: Bright Power Semiconductor (BPSemi)
• Package: SOP8
• Built-in MOSFET: 500V
• Input Voltage: 85V–265V AC
• LED Current Accuracy: ±5%
• Current Sense Threshold: 400mV (typical)
• VCC Startup Threshold: 14V
• VCC UVLO Threshold: 9V
• Maximum Switching Frequency: CRM (critical conduction mode)
• Thermal Regulation: 150°C
• ESD Rating: 2kV (HBM)

🛡️ Protection Features

• LED Open Circuit Protection – Protects against open load conditions
• LED Short Circuit Protection – System operates at low frequency to reduce power dissipation
• CS Resistor Short Protection – Fast detection and shutdown
• Undervoltage Lockout (UVLO) – Prevents operation at insufficient supply voltage
• Thermal Regulation – Reduces output current at 150°C

🏆 Why Regency Semiconductors?

• Authentic Components – Genuine BPSemi parts with full traceability
• Competitive Pricing – Volume discounts available for bulk orders
• Ready Stock – Immediate dispatch from our warehouse
• Technical Support – Our team is here to assist with your design needs

📩 Contact us today for pricing, samples, or bulk inquiries!

📞 +91-8591695392

📧 sales1@regencysemiconductors.com

🌐 www.regencysemiconductors.com

Note: Specifications are subject to change without prior notice. Please refer to the official datasheet for complete technical details.