The BD9329EFJ-HVE2 is a single channel high accuracy LED driver IC manufactured by Rohm Semiconductor. It's designed to provide constant current to drive LEDs in LCD backlights and other lighting applications, ensuring consistent brightness and long lifespan of the LEDs. It features a built-in boost converter and current sensing circuitry, offering high efficiency and compact design.

Applications

• LCD Backlights: Used in LCD TVs, monitors, and notebook PCs to drive the backlight LEDs.
• Automotive Lighting: Employed in automotive display backlights and interior lighting systems.
• General Lighting: Used in various LED lighting applications requiring precise current control.
• Industrial Displays: Integrated into industrial display panels for consistent and reliable LED driving.

Features

• Single Channel LED Driver: Drives a single string of LEDs with constant current.
• Built-in Boost Converter: Generates the necessary voltage to drive the LEDs from a lower input voltage.
• High Accuracy Current Control: Provides precise current regulation for consistent LED brightness.
• PWM Dimming Control: Allows for adjusting the LED brightness using PWM signals.
• Overvoltage Protection (OVP): Protects the LEDs from damage due to overvoltage conditions.
• Overcurrent Protection (OCP): Protects the IC and LEDs from excessive current.
• Open/Short LED Protection: Detects and protects against open or shorted LED conditions.
• Thermal Shutdown Protection (TSD): Protects the IC from overheating by shutting down the output.
• Small Package: Available in a compact package for space-saving designs.

Benefits

• Consistent LED Brightness: High accuracy current control ensures uniform brightness across all LEDs.
• Extended LED Lifespan: Protection features prevent damage to LEDs, prolonging their lifespan.
• High Efficiency: Built-in boost converter and optimized design provide high efficiency power conversion.
• Compact Design: Small package allows for integration into space-constrained applications.
• Robust Protection: Comprehensive protection features ensure reliable operation under various conditions.

Additional Details

The BD9329EFJ-HVE2 is typically available in a HTSSOP-J20 package. The operating temperature range is usually between -40°C to +85°C. It is compliant with industry standards for RoHS and lead-free manufacturing, making it environmentally friendly. It is designed for LCD backlight application and features multiple protection features such as OVP, OCP, and TSD. Please refer to the manufacturer's datasheet for detailed specifications and application notes.