General Description
The MAX8722 integrated backlight controller is optimized to drive cold-cathode fluorescent lamps (CCFLs) using a full-bridge resonant inverter architecture. Resonant operation maximizes striking capability and provides near-sinusoidal waveforms over the entire input range to improve CCFL lifetime. The controller operates over a wide input voltage range (4.6V to 28V) with high power to light efficiency. The device also includes safety features that effectively protect against many single-point fault conditions including lamp-out and short-circuit faults.

Features
♦ Synchronized to Resonant Frequency
    Longer Lamp Life
    Guaranteed Striking Capability
    High Power to Light Efficiency
♦ Wide Input Voltage Range (4.6V to 28V)
♦ Input-Voltage Feed-Forward for Excellent Line Rejection
♦ Accurate Dimming Control with Analog Interface
♦ 10:1 Dimming Range
♦ Adjustable Accurate DPWM Frequency with Sync Function
♦ Adjustable Lamp Current Rise and Fall Time
♦ Secondary Voltage Limit Reduces Transformer Stress
♦ Lamp-Out Protection with Adjustable Timeout
♦ Secondary Overcurrent Protection with Adjustable Timeout
♦ Low-Cost 24-Pin QSOP Package

Applications
    Notebook Computer Displays
    LCD Monitors
    LCD TVs