The BD9352GULE2 is a white LED driver IC manufactured by Rohm Semiconductor. It's designed to efficiently power and control white LEDs used in backlighting applications, primarily for LCD displays. The IC offers various features to optimize LED brightness and ensure consistent performance.

Applications

• LCD backlights for mobile phones
• LCD backlights for portable media players
• LCD backlights for digital cameras
• Small-sized LCD displays
• General LED backlighting

Features

• High Efficiency Boost Converter: Provides efficient voltage conversion for powering the LEDs.
• Constant Current Control: Ensures consistent brightness across all LEDs.
• PWM Dimming Control: Allows for precise adjustment of LED brightness.
• Overvoltage Protection (OVP): Protects the IC and LEDs from overvoltage conditions.
• Short Circuit Protection (SCP): Protects against short circuits in the LED string.
• Open Circuit Protection: Protects the circuit from damage when an LED string is open.
• Thermal Shutdown: Prevents the IC from overheating.

Benefits

• Improved Battery Life: High efficiency boost converter maximizes battery life.
• Consistent Display Brightness: Constant current control ensures uniform brightness across the display.
• Precise Brightness Control: PWM dimming allows for accurate brightness adjustment.
• Enhanced System Reliability: Protection features safeguard the IC and LEDs from damage.
• Simplified Design: Integrates multiple functions into a single chip, simplifying the design process.

Additional Details

The BD9352GULE2 is designed to operate over a wide input voltage range. It is available in a small, surface-mount package suitable for portable devices. This white LED driver IC is optimized for efficiency and protection, making it a reliable choice for LCD backlighting applications.