The OZ9910AGN-02-LF is a high-performance Cold Cathode Fluorescent Lamp (CCFL) controller IC designed by O2Micro for LCD backlight applications. Commonly used in LCD monitors, LCD TVs, and notebook computers, this controller offers efficient and reliable power to CCFL lamps. The integrated protection features and adjustable settings make it a versatile solution for various display applications.

Applications

• LCD Monitors
• LCD TVs
• Notebook LCD Panels
• Industrial LCD Displays

Features

• High Efficiency: Optimized for efficient power conversion, minimizing energy waste and extending battery life in portable applications.
• CCFL Driver: Specifically designed for driving CCFL lamps, providing stable and reliable operation.
• Integrated Protection: Includes Over-Voltage Protection (OVP), Over-Current Protection (OCP), and Short-Circuit Protection (SCP) to protect the device and the CCFL lamp from damage.
• Adjustable Frequency: Allows for fine-tuning of the operating frequency to optimize performance and minimize interference.
• Burst Mode Operation: Supports burst mode operation for improved efficiency at low dimming levels.
• Analog and PWM Dimming Control: Provides both analog and PWM dimming control for flexible brightness adjustment.
• Open Lamp Protection: Detects and protects against open lamp conditions, preventing damage to the inverter circuit.

Benefits

• Extended Battery Life: High efficiency minimizes power consumption, extending battery life in portable applications.
• Enhanced Reliability: Integrated protection features ensure stable and reliable operation, reducing the risk of damage and downtime.
• Precise Brightness Control: Flexible dimming control options allow for precise adjustment of the LCD panel brightness.
• Simplified Design: Reduces the number of external components required, simplifying the design and reducing the overall cost.
• Robust Protection: Safeguards the device and the CCFL lamp from various fault conditions, ensuring long-term reliability.

Additional Details

The OZ9910AGN-02-LF typically operates with a wide input voltage range to suit different power sources. The device regulates voltage and current to the CCFL lamp using PWM (Pulse Width Modulation), ensuring stable operation under varying conditions. The adjustable frequency feature optimizes the circuit for specific lamp characteristics and operating environments. The integrated protection features (OVP, OCP, SCP) are critical for device and CCFL lamp safety. Burst mode operation enhances efficiency at low dimming levels by reducing switching losses. The integration of both analog and PWM dimming controls allows for more flexibility in brightness adjustment. A soft-start function minimizes stress during startup. The -LF suffix indicates that this part is lead-free. The OZ9910AGN-02-LF is a versatile and dependable CCFL controller, perfect for many LCD backlighting applications. Its package type is generally SOP (Small Outline Package).