Jun 3 2009
Microsemi Corporation (Nasdaq:MSCC), a leading manufacturer of high performance analog/mixed signal integrated circuits and high reliability semiconductors, today extended its comprehensive line of backlight-driving IC solutions with the production release of the company's LX24132 32-port LED backlight controller and LX23108L 8-port LED driver.
Microsemi's chipset provides a scalable, integrated solution for direct or edge-lit backlight applications in flat-panel LCD TV displays, and supports White LED or RGB LED implementations. Microsemi's products are designed to provide outstanding performance and functionality in demanding LCD TV, notebook computers, automotive and other display platforms and applications. The chipset can easily be integrated with Microsemi's complementary light-sensor and color-management system solutions to deliver additional quality and functionality.
"Customers have been using Microsemi's proven CCFL solutions for many years in a variety of mainstream applications, and now they can take advantage of Microsemi second-generation LED driving technology for the most energy-efficient designs possible," said Tom Kapucija, director of marketing at Microsemi's Analog Mixed Signal Group. "Microsemi is committed to supporting its customers during their implementation of this new and efficient green LCD TV display technology."
KEY LX24132 and LX23108L FEATURES AND BENEFITS:
- White LED or RGB backlight support for large TV display panels
- Up to 32 LED strings with +/-1.5% precision current matching
- 100mA LED current drivers at 100 percent duty cycle and up to 200mA at 50 percent duty cycle
- Wide dimming ratio with PWM and LED current amplitude control
- 12-bit PWM duty-cycle resolution and 8-bit resolution for LED current setting
- LED power supply voltage control
- SPI communication interface
- Integrated open-string, short-LED and over-temperature protection for each individual channel with on-chip thermal monitoring
- Synchronization to external input pulse (Sync-In) and scan capability with enable/disable for PWM outputs
Pricing and Availability
Production samples of the ROHS-compliant LX24132 and LX23108L chipset are available now with high-volume shipments starting in the third calendar quarter of 2009. High-volume OEM chipset quantities are priced at less than 8 cents per port depending on the configuration.
Product Demonstration
The backlight controller/driver chipset as well as the color management solution is being demonstrated at the 2009 International Society for Information Display (SID) Exhibition in San Antonio, TX.