The OZ9910ASN-B5-0-TR is a Cold Cathode Fluorescent Lamp (CCFL) controller IC from O2Micro designed for LCD backlight applications. This controller is commonly used in LCD monitors, LCD TVs, and notebook computers, providing 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 OZ9910ASN-B5-0-TR usually operates with a broad input voltage range to fit multiple power sources. It employs PWM (Pulse Width Modulation) control to accurately control the voltage and current supplied to the CCFL lamp, guaranteeing steady performance under various circumstances. The adjustable frequency function permits optimization of the circuit for particular lamp characteristics and operating settings. Crucial for the safety and longevity of the controller and CCFL lamp are the built-in protection features, including OVP, OCP, and SCP. The burst mode operation boosts efficiency at lower dimming settings by lowering switching losses. The availability of both analog and PWM dimming controls allows for greater flexibility in achieving desired brightness levels. To lessen stress on parts during start-up, a soft-start feature is frequently included. The usage of tape and reel packaging (TR) facilitates automated assembly. Commonly packaged in a small outline package (SOP) for space efficiency, the OZ9910ASN-B5-0-TR is a flexible and dependable CCFL controller well-suited for various LCD backlighting tasks.