Ambient Light Sensor Reduces Power, Improves Display Visibility

Oct. 8, 2008
The TPS859 ambient light sensor incorporates a photodiode, current amplifier, and a luminous-efficiency correction function in a single chip. The device boosts sensitivity with a light current of 230 µA and employs a unique optical filtering

The TPS859 ambient light sensor incorporates a photodiode, current amplifier, and a luminous-efficiency correction function in a single chip. The device boosts sensitivity with a light current of 230 µA and employs a unique optical filtering technology that achieves luminous efficiency near that of the human eye. The filter reduces the ratio of incandescent to fluorescent light sensitivity to 1 typical. In a surface-mount package measuring 1.6 mm x 1.6 mm x 0.55 mm, the TPS859 operates from 1.8V to 5.5V supply and across a temperature range from -30°C to +85°C. Price is $0.35 each/10,000. TOSHIBA AMERICA ELECTRONIC COMPONENTS INC., Irvine, CA. (949) 623-2900.

Company: TOSHIBA AMERICA ELECTRONIC COMPONENTS INC.

Product URL: Click here for more information

About the Author

Staff

Articles, galleries, and recent work by members of Electronic Design's editorial staff.

Sponsored Recommendations

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!