Ambient light sensor allows for easier integration into space-constrained designs

Vishay Intertechnology, Inc. has introduced the industry's first AEC-Q100 qualified rectangular ambient light sensor. The Vishay Semiconductors VEML4031X00 features an ALS and highly sensitive IR photodiode in an opaque 4.38mm x 1.45mm surface-mount package with a low 0.6mm profile. Occupying half the width of previous-generation solutions, the device permits easier integration into space-constrained designs, such as bezel-less centre control displays.

Highly accurate measurements are supported due to the spectral sensitivity of the automotive-grade sensor, which matches that of the human eye, while its IR channel provides light source differentiation. With an ambient light range from 0lx to 172000lx, the device will not saturate in daylight, while its high sensitivity of 0.0026lx/ct permits the device to be placed behind dark cover glass.

Offering a high operating temperature range from -40C to +110C, the device will be employed for display backlight controls, infotainment systems, rearview mirror dimming, interior lighting control systems, and heads-up displays. The sensor supports the easy-to-use I²C bus communication interface for these applications and provides an interrupt function.

The VEML4031X00 features a supply voltage range of 2.5V to 3.6V, I²C bus voltage range of 1.7V to 3.6V and low shut-down current consumption of 0.5μA typical. RoHS-compliant, halogen-free, and Vishay Green, the device offers a Moisture Sensitivity Level of 2a and a floor life of four weeks in accordance with J-STD-020.