Microsemi tailors chipset for LED backlit TV displays

Ismini Scouras

eeProductCenter (07/22/2009 12:54 PM ET)

Irvine, Calif.—Microsemi Corp. has extended its backlight-driving IC line with the production release of the 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 for demanding LCD TV, notebook computers, automotive and other display platforms and applications.

Key LX24132 and LX23108L features include 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; and 12-bit PWM duty-cycle resolution and 8-bit resolution for LED current setting.

Pricing: High-volume OEM chipset quantities are priced at less than 8 cents per port depending on the configuration.
Availability: Production samples are available now with high-volume shipments starting in the third calendar quarter of 2009.

Microsemi, www.microsemi.com