Spectral sensitivity similar to the human eye

22nd April 2016
Nat Bowers

Designed for consumer and industrial applications, Vishay Intertechnology has introduced a high-accuracy digital ambient light sensor which combines a highly sensitive photo-diode, low-noise amplifier and 16-bit ADC in a miniature, transparent surface-mount package measuring only 2x2x0.85mm. The VEML6030 adopts Filtron technology and features an interrupt function while supporting an I²C bus interface for simple operation.

Operating over a temperature range from -25 to +85°C, the VEML6030 will provide display and keypad dimming adjustment and optical switching for mobile devices such as smartphones and GPS units, notebooks and PC computers, LCD TVs, digital picture frames, digital cameras and industrial and medical light sensing. As part of smart home lighting control systems, the device provides accurate and current analysis of ambient lighting to give precise control even during unexpected situations, such as fast-moving storms. The device detects fading natural light and can detect the sun rising in the morning to control light levels.

Filtron technology enables ambient light spectral sensitivity close to that of the human eye, while the sensor's adoption of O-Trim technology provides output tolerance of less than or equal to 10 %. The device offers detection from 0 to 167klx and resolution down to 0.005lx/ct, allowing for operation in applications with low-transmittance (dark) lens designs. The VEML6030 provides 100 and 120Hz flicker noise rejection and excellent temperature compensation stability. The device features low power consumption down to just 2μA in operating mode and 0.5μA in shutdown mode.

The VEML6030's supply voltage range is from 2.5 to 3.6V, while its I²C bus voltage range is from 1.7 to 3.6V. Offered in a lead-free, 6-pin package, the device is RoHS-compliant, halogen-free and Vishay Green.

Samples of the ambient light sensor are available now. Production quantities will be available in Q2 2016, with lead times of 12 weeks for large orders.

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