National Semiconductor Intros LP3954 LED Driver

National Semiconductor Corp. (Santa Clara, CA) introduced its LP3954 backlight light-emitting diode (LED) driver that controls lighting applications in hand-held devices, including cellular phones, digital still cameras, gaming devices, and MP3 players. Housed in a micro SMD package, the LP3954 unit integrates two backlight drivers, a dual red-green-blue LED controller, a flash LED driver, and an analog-to-digital converter on a single chip. The integrated, magnetic boost dc-dc converter drives high-current loads over a wide battery-voltage range.

The LP3954 lighting management unit drives two separately controlled white LED backlights for the main and sub-display. In the case of a single large display, the units can be combined together to drive up to six LEDs. The integrated backlight drivers are efficient, low-voltage structures with matching that feature an automatic fade-in/fade-out function. The LP3954 is housed in a tiny, 36-bump, micro SMD, lead-free package that measures 3 mm x 3 mm x 0.6 mm.

Available now, the LP3954 lighting management unit is priced at $2.10 in 1,000-unit quantities.