Development of High Precision Brightness Sensor IC by MITSUMI
Mitsumi Electronic has developed a nearness sensor/brightness sensor offering high precision detection with low LED drive current. The new MM3457 sensor IC comes with 2 optical sensors, capable of detecting the brightness of the surroundings with its brightness sensor and automatically adjusting the backlight of display resulting in an improved power saving and ease of viewing the screen. The new MM3457 is capable of distinguishing between the talking state and standby state to control the display in preventing operation error and achieving reduction in power consumption.
The two on-board sensors support both the visible and infrared wavelengths, while its Led drive is capable of driving IR-LED. The new sensor is ideal for low current drive which id suitable for mobile devices such as mobile phones with a driving power supply voltage VDD between 2.25 to 3.5V. The new sensor IC comes in a form factor of 2.0 x 2.1 x 0.6 mm.
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