The LX1686EIPW is a Cold Cathode Fluorescent Lamp (CCFL) controller manufactured by Microsemi Corporation. It is designed to drive CCFLs in LCD backlighting applications, providing a highly efficient and reliable solution. This controller integrates the necessary functions to generate the high voltage and high frequency required to ignite and operate CCFLs.

Applications

• LCD backlighting
• Laptop computers
• LCD monitors
• Automotive displays
• Industrial displays

Features

• CCFL controller
• High efficiency
• Wide input voltage range
• Programmable dimming control
• Open lamp protection
• Short circuit protection
• Soft start

Benefits

• High Efficiency: Efficiently drives CCFLs, minimizing power consumption and extending battery life in portable devices.
• Flexible Dimming: Programmable dimming control allows for adjusting the brightness of the display.
• Comprehensive Protection: Open lamp and short circuit protection features ensure reliable operation and prevent damage to the controller and the CCFL.
• Smooth Startup: Soft start feature prevents inrush current and reduces stress on the CCFL.
• Wide Input Voltage Range: Operates from a wide range of input voltages, providing flexibility in system design.

Additional Details

The LX1686EIPW is available in a TSSOP-20 package. Its high efficiency and comprehensive protection features make it an excellent choice for LCD backlighting applications. The controller is designed to operate at high frequencies. The device’s programmable dimming control allows for adjusting the brightness of the display. The open lamp and short circuit protection features ensure reliable operation and prevent damage to the controller and the CCFL. The soft start feature prevents inrush current and reduces stress on the CCFL. The device requires external components, such as a transformer and capacitors, to generate the high voltage required to drive the CCFL. It's typically used along with a PWM dimming signal, giving the user control over the LCD brightness.