Vishay's VCSEL-based reflective light sensor saves space and improves performance

 


【Lansheng Technology Information】Vishay has introduced a new reflective light sensor for industrial, computer, consumer and mobile applications. Compared to previous generation solutions, Vishay Semiconductors' VCNT2030 is more space-efficient, while improving performance with a higher current transfer ratio, longer sensing distance, and lower power consumption. The product is configured with a vertical cavity surface emitting laser and a silicon phototransistor in a tiny 1.85 mm x 1.2 mm x 0.6 mm surface mount package.


The recently released device adopts a compact structure, the emission source and the detector are in the same plane. The VCSEL offers excellent internal crosstalk rejection due to its narrow ±17˚ emission angle, which also improves proximity performance behind the cover glass. The analog output signal of the VCNT2030 phototransistor depends on the amount of light emitted by the VCSEL and reflected from objects in the sensor's field of view. The sensing distance of the device is 15 mm, which is three times that of the closest competitors on the market.


Due to its small size, the VCNT2030 saves more than 40% PCB space compared to previous generation devices, enabling the sensor to be used in industrial infrastructure, home and building control, notebook and desktop computers, home appliances, consumer electronics and metering applications. space-saving optical switching solutions in applications; optical encoding for motor control in e-bikes, golf carts, tractors, and harvesters; and paper detection in printers and scanners. In these applications, the low 8mA drive current of the device's VCSEL is sufficient to provide the same performance as a solution using a 20mA IR emitter, resulting in significantly lower power consumption.


The sensor has a detection range of 0.3 mm to 6 mm, an emission wavelength of 940 nm and a typical output current of 2.5 mA, which means a typical CTR of 31 % under test conditions. This value is more than 100 % higher than the previous generation solution and the closest competitor sensor. The device has a reflow moisture sensitivity level (MSL) of 3 per J-STD-020. It is RoHS compliant, halogen-free, and meets Vishay Green Standards.


Lansheng Technology Limited, which is a spot stock distributor of many well-known brands, we have price advantage of the first-hand spot channel, and have technical supports. 

Our main brands: STMicroelectronics, Toshiba, Microchip, Vishay, Marvell, ON Semiconductor, AOS, DIODES, Murata, Samsung, Hyundai/Hynix, Xilinx, Micron, Infinone, Texas Instruments, ADI, Maxim Integrated, NXP, etc

To learn more about our products, services, and capabilities, please visit our website at http://www.lanshengic.com

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