by Mat Dirjish
Vishay Intertechnology’s AEC-Q100-qualified VEML6031X00 ambient light sensor comes in a compact 2.67 mm x 2.45 mm x 0.6 mm package. The component targets automotive and consumer applications where very high sensitivity is necessary for sensing light through dark cover materials.
Enabling ambient light spectral sensitivity close to that of the human eye, the VEML6031X00 integrates a photodiode, low noise amplifier, 16-bit a/d converter, and an infrared (IR) channel. The sensor’s linear behavior from 0 lx to 228 klux eliminates the need for a correction formula.
Resolution is down to 0.0034 lx/ct, allowing the sensor to operate in applications with low transmittance (dark) lens designs. The VEML6031X00’s IR channel enables light source detection and sensitivity adjustments to compensate for lux errors.
Other features include an operating temperature range to +110°C, I²C bus, support for
multiple slave addresses, a selectable integration time down to 3.125 ms, shut down current consumption of 0.5 μA typical, and a supply voltage range of 2.5V to 3.6V. Samples and production quantities of the ambient light sensor are available now, with lead times of eight to 12 weeks for large orders. For deeper details, procure and peruse the VEML6031X00 datasheet.
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