The OZ971G is a high-performance Cold Cathode Fluorescent Lamp (CCFL) controller designed for LCD backlighting applications, manufactured by O2Micro. It provides efficient and reliable power conversion for driving CCFL lamps in various display devices. The OZ971G integrates PWM dimming control for precise brightness adjustment and features comprehensive protection circuits to ensure safe and stable operation. This controller is suitable for use in LCD monitors, notebook computers, and other portable devices.

Applications:

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

Features:

• High-Efficiency CCFL Control
• PWM Dimming Control with Wide Range
• Integrated 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
• Enhanced System Reliability
• Reduced Power Consumption
• Simplified System Design

Additional Details:

The OZ971G utilizes a push-pull or half-bridge inverter topology to drive the CCFL lamp, offering a stable and efficient power conversion process. It incorporates a wide input voltage range, making it compatible with various power supply configurations. The PWM dimming control enables precise adjustment of the lamp brightness, ensuring optimal viewing experience under different ambient lighting conditions. The integrated 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 allows for optimizing the inverter circuit for specific lamp characteristics and application requirements. The soft-start functionality minimizes stress on the components during startup, enhancing the overall system reliability. The OZ971G is typically available in a compact package, making it suitable for space-constrained applications. With its high performance and comprehensive features, the OZ971G provides a reliable and efficient solution for CCFL backlighting in a variety of LCD display applications. It allows for optimized LCD backlighting performance, precise brightness control, enhanced system reliability, and reduced power consumption. The integrated protection features safeguard the circuit and the lamp, thereby improving the durability and reliability of the LCD display system.