The OZ960N is a high-efficiency, cold-cathode fluorescent lamp (CCFL) controller designed for LCD backlighting applications. Manufactured by O2Micro, this integrated circuit is crucial for driving CCFLs in a variety of devices, including notebook computers and LCD monitors. It provides precise control over the CCFL current and voltage, ensuring optimal brightness and lifespan.

Applications

• Notebook computer LCD backlights
• LCD monitor backlights
• General CCFL lighting systems

Features

• High-efficiency DC-DC conversion
• Precise CCFL current control
• Integrated PWM dimming control
• Open lamp protection
• Short circuit protection
• Overvoltage protection
• Under voltage lockout (UVLO)
• Soft start functionality
• Low operating voltage

Benefits

• Extended CCFL lifespan: The precise current control minimizes stress on the CCFL, extending its operational life.
• Improved display brightness and uniformity: The OZ960N ensures consistent and optimal brightness across the LCD panel.
• Enhanced system reliability: Integrated protection features prevent damage from open lamp, short circuit, and overvoltage conditions.
• Energy efficiency: The high-efficiency DC-DC conversion minimizes power consumption, contributing to longer battery life in portable devices.
• Reduced component count: The integrated design simplifies circuit design and reduces the number of external components required.
• Precise Dimming Control: PWM dimming control enables a wide range of brightness adjustment, catering to different viewing environments.

Additional Details

The OZ960N typically operates with a wide input voltage range, making it suitable for various power supply configurations. It incorporates a soft-start function to limit inrush current during startup, preventing component stress and improving system reliability. The device’s protection features, including open-lamp protection and short-circuit protection, safeguard both the CCFL and the controller itself from potential damage. The PWM dimming function allows for precise control over the backlight brightness, enabling users to adjust the display according to their preferences and ambient lighting conditions. Furthermore, the OZ960N's compact package and low power consumption make it an ideal choice for space-constrained and power-sensitive applications.