NXP launch integrated LED driver for LCD backlight display

Netherlands - NXP semiconductor (www.nxp.com) launched the 3-channel LED driver, UBA3077, used for the backlight of liquid crystal display (LCD). Based on NXP GreenChipTM technology, UBA3077 is a fully integrated switching mode solution for multi channel applications, multi channel applications support LED as a TV and computer monitor backlight and universal lighting applications. For LCD backlight, UBA3077 with accurate constant current drive LED group, and improve the image quality, including dark picture deeper, lower brightness current strength is low. With 94% efficiency, the UBA3077 allows designers to design thinner LCD panels with lower energy consumption and heat dissipation, providing a higher contrast and more vivid display. UBA3077 can supply at any time. "UBA3077 is designed to present and future market trends for the use of LED backlight applications. LEDs save a lot of energy, life is very low operating costs. UBA3077 allows the generation of pulse color, does not contain harmful elements, so it is based on GreenChip technology for the ecological environment of the chip. NXP semiconductor, lighting solutions, Berre, head of business development at Jacques Le, said. NXP UBA3077 PM feature is the CMOS50 (power management) technology, designed for high voltage integrated digital environment, combined with the characteristics of the power supply of composite digital processing, to provide first-class performance. LED driver contains three independent channels, each with a boost converter and power integration, the application design is not due to the heat dissipation effect of additional voltage in the LED group does not match the. Integrated MOSFET for boost converter and power, allows designers to reduce the size and cost of the external application. UBA3077 high linearity and precision lower brightness function, allowing the light output in 1% to reduce the brightness, so the picture quality is better. UBA3077 provides efficient and accurate control, each channel 14- PWM dimming (generated by the system to generate PWM or internal) independently of the PWM (pulse width modulation) control, 24kHz (maximum period from 0.1% to 100%). Working voltage between 10V and 42V, UBA3077 can drive three group 20 LED, each rated maximum is 150mA. UBA3077 can be controlled by 400kHz or I2C bus operation. Packaged in HVQFN40, allowing proper heat dissipation through the PCB. Pricing UBA3077 1000 tablet price is US $3.20.