Ambient Light Photo Sensor controls LCD backlighting.
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Press Release Summary:
Analog-output APDS-9004 helps conserve power and extend life of LCD screens in portable display devices and can also be used for turning on/off indoor and outdoor lighting as well as electronic signs and signals. With spectral response that peaks at same wavelength as human eye, it detects ambient light level and provides linear proportional output used to adjust backlighting of display screen or keypad. Product comes in reverse-mount, 4-pin package measuring 3.2 x 1.6 x 1.1 mm.
Original Press Release:
Avago Technologies Introduces Low-Cost Ambient Light Photo Sensor for Controlling Backlighting in Consumer Applications
Automatic Adjustment Feature Extends Screen and Battery Life in Portable LCD Display Products
SAN JOSE, Calif., September 27, 2006 - Avago Technologies, the world's largest privately held semiconductor company, today introduced a new version of its analog-output ambient light photo sensor that helps to conserve power and extend the life of LCD screens in portable display devices. These low-cost sensors control the backlighting in portable LCD display applications based on predetermined conditions set by the manufacturer. Avago's APDS-9004 is an ideal power-savings solution for notebook PCs, portable DVD players, camcorders, digital cameras, and mobile phones. It can also be used for turning on/off indoor and outdoor lighting, street lighting and electronic signs and signals.
The APDS-9004 sensor detects the ambient light level and provides a highly linear proportional output that is used to adjust the backlighting of a display screen or keypad. If there is sufficient ambient light, designer-provided logic can turn off the backlighting to reduce battery recharges or replacements.
Avago's low-cost reverse-mount photo sensor offers additional flexibility to designers of price- and size-sensitive mobile products. The ultra-small APDS-9004 sensor offers a combination of excellent performance with significant power savings, which is an increasingly important issue with today's battery-powered products.
Avago's ambient light sensors out perform silicon photodiode light-detection solutions because their spectral response peaks at the same wavelength as the human eye. The sensors perform equally well with light sources ranging from natural sunlight to fluorescent, conventional incandescent, and halogen lamps. They also offer significantly faster response to changes in illumination than phototransistors. Avago's package, developed for surface-mount LEDs, combines low cost, proven reliability and optimization for automated manufacturing processes with an extremely small, industry-standard footprint.
Features
The APDS-9004 sensor is supplied in a reverse-mount four-pin package with Electronic Industries Association (EIA) standard dimensions of 3.2 mm by 1.6 mm by 1.1 mm. It mounts with the light sensitive area facing toward the PC board with light passing through a user-provided aperture. This allows the board to be mounted tightly against the case of the product resulting in space savings. Performance of the APDS-9004 ranges from 2.4 V to 5.5 V and -40° C to +85° C in temperature.
U.S. Pricing and Availability
The APDS-9004 is priced at less than $0.50 each in moderate volumes. It is available now through Avago's direct sales channel and worldwide distribution partners. More information is available at www.avagotech.com/ir.
Avago's Mobile Appliance Solutions
Avago Technologies is a leading supplier of semiconductor solutions for today's highly integrated, feature-rich mobile handsets and PDAs. In addition to infrared transceivers for transmitting data, Avago provides FBAR filters and E-pHEMT and HBT power amplifiers that save battery life and help shrink handset size, surface-mount LEDs that provide backlighting styling options, proximity sensors that automate the speakerphone, and ambient light photo sensors that save battery life by controlling backlighting. No other component vendor offers all of these solutions for mobile appliances. More information about Avago's family of mobile appliance semiconductor solutions is available at www.avagotech.com/mobile.
About Avago Technologies
Avago Technologies is the world's largest privately held semiconductor company, with approximately 6,500 employees worldwide. Avago provides an extensive range of analog, mixed-signal and optoelectronic components and subsystems to more than 40,000 customers. The company's products serve four end markets: industrial and automotive, wired infrastructure, wireless communications, and computer peripherals. It is recognized for providing innovative, high-quality products along with strong customer service and the industry's best on-time delivery. Avago's heritage of technical innovation dates back 40 years to its Agilent/Hewlett-Packard roots. Information about Avago is available on the Web at www.avagotech.com.
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries.
