AnalogicTech launches small, quiet, serial, step-up LED backlight drivers for handheld devices
SANTA CLARA, USA: Advanced Analogic Technologies Inc. (AnalogicTech), an analog semiconductor company focused on powering innovative solutions in consumer, industrial, and communications markets, has introduced the AAT14XX family of 31 mA step-up single-channel light-emitting diode (LED) drivers capable of driving up to 10 LEDs in a single string.
The drivers’ small size and quiet operation make them ideal LED backlight solutions for single cell Lithium-ion battery-based equipment, including mobile and smart phones, MP3 players, portable media players (PMPs) and portable navigation device-type applications with larger screens.
The AAT14XX family enables larger displays, allows higher efficiencies and offers filtered pulse-width modulation (PWM) dimming to eliminate interference with the radios in cell phones and other handheld devices. With a 1.15 x 1.55 mm wafer-level chip scale package (WLCSP) size, the devices require only 0.7 cm2 of space on a printed circuit board, making them one of the smallest solutions available.