The OZ827LN-A2-0-TR is a highly integrated backlight controller designed by O2Micro for large-size LCD panels. It integrates a boost controller and multiple current regulators, providing a complete solution for driving LED backlights in LCD TVs and monitors. This IC is designed to improve efficiency and reduce external component count, leading to smaller and more cost-effective solutions.

Applications

• LCD TVs
• LCD Monitors
• Large-size LCD Panels
• Industrial Displays

Features

• High Efficiency Boost Controller: Ensures optimal power conversion from the input voltage to the required LED voltage.
• Multiple Integrated Current Regulators: Provides precise and stable current to each LED string, ensuring uniform brightness across the panel.
• PWM Dimming Control: Allows for precise adjustment of backlight brightness via Pulse Width Modulation (PWM) signal.
• Over Voltage Protection (OVP): Protects the LEDs from damage due to excessive voltage.
• Over Current Protection (OCP): Protects the IC and LEDs from damage due to excessive current.
• Thermal Shutdown Protection (OTP): Protects the IC from overheating.
• Short Circuit Protection (SCP): Protects the IC and LEDs from damage due to short circuits.
• Analog Dimming: Supports analog dimming for finer brightness control.
• Integrated Fault Detection: Detects and reports various fault conditions, enhancing system reliability.

Benefits

• Improved Efficiency: The high-efficiency boost controller minimizes power loss, resulting in lower energy consumption and reduced heat generation.
• Uniform Brightness: The multiple integrated current regulators ensure consistent current to all LED strings, providing uniform brightness across the LCD panel.
• Enhanced Reliability: The comprehensive protection features (OVP, OCP, OTP, SCP) safeguard the LEDs and IC from damage, extending the lifespan of the backlight system.
• Reduced Component Count: Integration of the boost controller and current regulators reduces the number of external components required, simplifying the design and lowering the cost.
• Precise Brightness Control: PWM and analog dimming allow for accurate adjustment of the backlight brightness, catering to different viewing environments and user preferences.
• Simplified Design: The integrated features and protection mechanisms simplify the design process and reduce the time required to develop a backlight system.

Additional Details

The OZ827LN-A2-0-TR typically operates with an input voltage range suitable for LCD TV and monitor applications. The specific input voltage range and output current capabilities should be verified in the datasheet. It is usually supplied in a small outline package (SOP) or similar, designed for surface mount assembly. The device also incorporates soft-start functionality to minimize inrush current during startup. The 'TR' suffix likely indicates that the component is provided in tape and reel packaging for automated assembly processes.