2009

Ambient Light Sensor ICs

altROHM Semiconductor (San Diego, CA) releases analog and digital Ambient Light Sensor (ALS) ICs for the control of LED backlighting for LCD-equipped devices. Featuring ROHM’s proprietary trimming process and use of multiple photodiodes with different junction depths, the ALS ICs provide an accurate output with little variation between various light sources. They offer uniform visibility for LCDs over a range of ambient light levels and sources, from incandescent or fluorescent light to full sunlight.

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