The OZ964S is a high-performance Cold Cathode Fluorescent Lamp (CCFL) controller IC designed by O2Micro for LCD backlight applications. It provides efficient and reliable control for driving CCFL lamps in monitors, televisions, and other display devices.

Applications

• LCD Monitors
• LCD TVs
• Laptop Screens
• Industrial LCD Panels

Features

• High-Efficiency CCFL Controller
• PWM Dimming Control for Brightness Adjustment
• Integrated Protection Features: Overvoltage Protection (OVP), Overcurrent Protection (OCP), Short Circuit Protection (SCP)
• Soft-Start Function to Reduce Lamp Stress
• Burst Mode Operation for Improved Efficiency at Low Brightness
• Lamp Current and Voltage Regulation

Benefits

• Extended Lamp Life due to Controlled Operation and Soft-Start
• Reduced Power Consumption for Energy Efficiency
• Enhanced System Reliability with Built-in Protection
• Improved Display Quality with Consistent Brightness
• Flexible Brightness Control

Additional Details

The OZ964S uses Pulse-Width Modulation (PWM) dimming to precisely control the lamp current, enabling accurate brightness adjustment. The integrated protection features ensure safe and reliable operation by preventing damage from overvoltage, overcurrent, and short circuits. The soft-start function minimizes stress on the CCFL during startup, contributing to a longer lifespan. The burst mode operation allows the controller to operate more efficiently at low brightness levels by reducing switching losses. External components such as a MOSFET and transformer are required for the operation of this IC within a CCFL backlight system. Consult the datasheet for detailed electrical characteristics and application circuit examples. Precise lamp current and voltage regulation contributes to consistent display brightness and color uniformity.