Analog Devices has expanded its lighting management system product lineup with the ADP8860 white LED backlight driver. Featuring a parallel configuration, the single-chip can control up to seven LEDs – six at 30 milliamps (mA) maximum and one at 60 mA – offering dimming and fade-in/fade-out capabilities. This delivers independent LED control to achieve minimum/maximum current and fade-in/fade-out times, or in grouped LED control to offload the processor from fade-in/fade-out duties and conserve power. For example, designers can configure a small group of LEDs to backlight the display, and assign individual LEDs to drive keypad lighting, and network connectivity and charge indicator lights. The single-chip ADP8860 backlight driver also enables system designers to quickly and easily upgrade non-LMS devices to provide the desired sophisticated fading and dimming functions, as well as extended battery life, to offer users an enhanced media viewing experience in a variety of lighting conditions.
Samples of the ADP8860 backlight driver are available in a 2 mm × 2.4 mm × 0.6 mm 20-bump WLCSP (wafer level chip scale package) or a 4 mm x 4 mm x 1mm, 20-pin LFCSP (lead frame chip scale package). The ADP8860 is priced at $1.70 per unit in 1,000-unit quantities.