ADI's latest ADP8860 white LED backlight driver

AnalogDevices, Inc., the world's leading provider of high-performance signal processing solutions, is the latest in the ADP8860 white-light led (W LED) backlight driver, the first in a new family of charge pump configuration devices that extends the Light Management System (LMS) product lineup. line. The ADP8860 is designed to work with the same line of LMS products, such as the ADP5520 Lighting Management System and the ADP5588 Mobile I/O Expander, which features ambient light sensing, a highly programmable register set, and advanced fade and brightness adjustment options. Significantly reduces backlight power consumption by up to 50%. This flexible architecture simplifies system designers' goal of optimizing power supply | regulator management for a wide range of low-power, low-voltage products that need to be small in consumer, medical, industrial, and instrumentation | instrumentation electronics The size display and / or keyboard provide backlighting.

Flexible architecture for ease of use

In challenging applications such as marine and portable navigation devices, radar scanners and consumer handsets, stable display is required in a variety of lighting environments, and the ADP8860 supports I/O from 1.7 to 3.3V. The device's configurable architecture automatically detects ambient light levels, adjusts backlight brightness based on changing lighting conditions, and improves ease of use. Like other Analog Devices LMS devices, the ADP8860's LMS capability allows it to automatically determine and adjust the minimum gain required as the light changes, under the same conditions, compared to conventional charge pump devices that use the same illumination gain. It reduces power consumption by up to 50%. The product also offers multi-zone lighting to support the main display | display devices and other displays, including navigation, special features, keyboards, indicators, and significantly reduce power consumption while maintaining the necessary display light levels. LMS also helps to minimize processor involvement and extend the device's autonomy, which increases endurance and increases battery life by 35%.

The single-chip ADP8860 features parallel configuration to control up to seven led--6 30mA led (maximum) and one 60mA led, as well as advanced brightness adjustment and fade-in/fade-out. This flexibility enables independent led control to achieve minimum/maximum current and fade-in/fade-out times, or to eliminate the fade-out/fade-out task and save power in packet led control. For example, a designer can configure a small group of LEDs to backlight the display and assign a separate led to drive keyboard illumination and network connections and charge the indicator lights. The single-chip ADP8860 backlight driver also enables system designers to quickly and easily upgrade non-LMS devices to provide the desired advanced fade and brightness adjustment while extending battery life and providing enhanced user protection in a variety of lighting conditions. Media visual experience.

Supply and quotation

The ADP8860 white LED backlight driver is available in a 2mm x 2.4mm x 0.6mm 20-bumpWLCSP (wafer level chip scale package) or a 4mm x 4mm x 1mm 20-lead LFCSP (lead frame chip scale package). Samples are available now. The ADP8860 is priced at $1.70 per piece in 1,000-piece quantities.

ADI in Power Management

ADI offers a range of state-of-the-art signal processing capabilities with innovative power management ICs that complement high-performance signal processing in a variety of portable and fixed power applications for consumer electronics, medical devices, industrial and instrumentation, and Communication infrastructure. By supporting signal link design requirements such as dynamic range, power supply rejection ratio (PSRR), and reliability, Analog Devices can help customers solve complex power challenges easily and quickly, differentiate their products, and accelerate time-to-market.

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