Light sensor ICs to monitor automotive laser front lights

June 30, 2016 // By Julien Happich
In response to the emergence of laser-powered automotive front lighting systems, Melexis has optimized its MLX75305 series of advanced light sensor ICs, incorporating a photodiode, trans-impedance amplifier and output stage.

Unlike competing devices on the market, it is fully AEC-Q100 qualified and supports an operational temperature range from -40°C up to +125°C. Supplied in a compact SOIC8 package, the MLX75305 provides engineers with a simple to implement, one chip solution for accurately monitoring headlamp output, requiring minimal external components and taking up very little board space. Covering a spectral bandwidth of 500nm to 1000nm, the IC maintains ±2% linearity across its whole output voltage range with a typical responsiveness of 70mV/(uW/cm 2). Laser-powered front lighting provides a way for car manufacturers to improve safety for road users without affecting vehicle fuel efficiency. The increased luminous flux also means that headlamps can be reduced in size.

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