Oct 2009National SemiconductorRequest Info
National Semiconductor Corp. has extended its product line to include the LM3530 LED driver, a white light-emitting diode driver with display backlight control. The device drives up to 11 high-current LEDs in series, illuminating larger displays in portable media devices, including smartphones. It employs sophisticated ambient light-sensing algorithms and content-adjustable backlighting to optimize the display, saving up to 55% compared to when the backlight is driven at constant brightness. It also features a 1000:1 dimming ratio and 90% efficiency.