Microsemi Launches High Performance Multi–lamp Controller for CCFL Displays

Microsemi Corp. has announced a new high performance multi–lamp controller designed with features optimized for lighting the cold cathode fluorescent lamps used in large screen LCD TV applications. Designated the LX6501™, the new controller minimizes external components by fully integrating on–chip gate drivers having the capacity to drive N channel power MOSFETs on both the low and high sides of full bridge inverters. Input voltages can be as high as 27V. An on–chip regulator generates internal driver operating voltages that supply the output gate drive circuit.

"We work closely with designers of major LCD TV displays to determine the lamp controller features they want for their next–generation products," said Steven G. Litchfield, Microsemi Executive Vice President and President of the Analog Mixed Signal Group. "A controller that helps them to manage costs by simplifying their designs is essential in their highly competitive market. The LX6501 addresses that need directly."

The LX6501 controller is available for immediate sampling in a choice of two 28–pin RoHS compliant and Pb–free surface mount packages, the TSSOP measuring 9.6mm x 6.25mm x 0.85mm, and the SOWB measuring 17.7mm x 10mm x 2.2mm. Samples can be ordered through this site, or from Microsemi sales representatives and authorized distributors. The unit price of either LX6501 is $1.18 in 10K lot quantities.