Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
EE Times-Asia > Power/Alternative Energy
Power/Alternative Energy??

LCD backlight inverter drive IC (FAN7310)

Posted: 27 Jan 2010 ?? ?Print Version ?Bookmark and Share

Keywords:CCFL inverter? LCD backlight? inverter drive IC?

Design goals for a CCFL inverter used in a notebook PC or other portable applications include small size, high efficiency and low cost. The FAN7310 provides the circuit blocks to implement a highly efficient CCFL backlight power supply in a small footprint 20-SSOP package. The FAN7310 typically consumes less than 4mA of operating current, improving overall system efficiency. External parts count is minimized and system cost is reduced by the integration of features as a feedback-controlled PWM driver stage, soft start, open lamp regulation and protection, UVLO, and a synchronization circuit with an external signal.

The FAN7310 includes an internal shunt regulator, allowing it to operate with an input voltage from 5V to 24V. It supports analog and burst dimming modes of operation. The FAN7310 provides open lamp regulation and protection. Open lamp regulation protects the transformer from overvoltage during startup or when an open lamp occurs. The transformer voltage is regulated by reducing duty cycle when an over-voltage is detected. Open Lamp protection can be used to shut down an IC when an open lamp condition continues for more than a specific time.

View the PDF document for more information.

Click here to view related datasheets.

Article Comments - LCD backlight inverter drive IC (FAN...
*? You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.

Back to Top