The OZ971SN is a highly efficient Cold Cathode Fluorescent Lamp (CCFL) controller designed for LCD backlighting applications. Manufactured by O2Micro, it is optimized for driving CCFL lamps in a variety of display sizes found in devices like notebook computers, LCD monitors, and portable media players. This controller integrates a PWM dimming control circuit for precise brightness adjustment and comprehensive protection features to ensure reliable operation.

Applications:

• LCD Monitors
• Notebook Computers
• Portable Media Players
• Industrial Displays

Features:

• High-Efficiency CCFL Controller
• PWM Dimming Control
• Over-Voltage Protection (OVP)
• Over-Current Protection (OCP)
• Short-Circuit Protection (SCP)
• Adjustable Operating Frequency
• Soft-Start Function

Benefits:

• Optimal LCD Backlighting Performance
• Precise Brightness Control for Enhanced Viewing Experience
• Enhanced System Reliability Due to Integrated Protection
• Reduced Power Consumption
• Simplified System Design

Additional Details:

The OZ971SN leverages a push-pull or half-bridge topology to effectively drive the CCFL lamp. Its wide input voltage range ensures compatibility with various power supply configurations. The PWM dimming control circuit provides precise control over the lamp brightness, optimizing the viewing experience under varying ambient lighting conditions. The built-in protection features, including over-voltage protection (OVP), over-current protection (OCP), and short-circuit protection (SCP), safeguard the IC and the CCFL lamp from potential damage. The adjustable operating frequency enables optimization of the inverter circuit based on specific lamp characteristics and application demands. Additionally, the soft-start function minimizes stress on components during startup, boosting overall system reliability. Housed in a compact package, the OZ971SN is suitable for space-constrained applications. The OZ971SN provides a high-performance, efficient, and reliable solution for CCFL backlighting in a wide range of LCD display applications. It is designed to provide stable and efficient power to the CCFL lamp, ensuring consistent brightness and long life.