Vishay Intertechnology Launches Fully Integrated Proximity and Ambient Light Sensor in Compact 4 mm by 2 mm by 1.1 mm Package
February 19 2015 - 11:00AM
Business Wire
For Consumer Applications, Sensor Provides
Design Flexibility and Filtron™ Technology for Robust Background
Light Cancellation
The Optoelectronics group of Vishay Intertechnology, Inc. (NYSE:
VSH) today introduced a new fully integrated proximity and ambient
light sensor featuring Filtron™ technology in one of the market’s
smallest surface-mount packages. Measuring only 4 mm by 2 mm by 1.1
mm, the VCNL4040 combines an IR emitter, photo detectors for
proximity and ambient light, a signal processing IC, and a 16-bit
ADC. The three-in-one sensor features an interrupt function,
supports I²C bus communication interface, and greatly simplifies
window and sensor placement in a wide variety of consumer
applications.
For smartphones, tablets, digital cameras, and other handheld
consumer electronics, the Vishay Semiconductors VCNL4040 saves
power as a proximity sensor by disabling touch screens until a user
is detected and uses its integrated ambient light function for
display/keypad adaptive brightness control and backlighting.
Containing the circuitry needed for these applications in one
device, the VCNL4040 eliminates the need for additional light
barriers and optical alignment of the IR emitter and photo
diode.
With its small outline and low height, the VCNL4040 saves space
in compact end products and gives design engineers greater
flexibility in where and how they locate the sensor. For additional
flexibility, the device can function at any depth or air gap below
the glass window, unlike sensors with 8-, 10-, and 12-bit
resolutions that require depths or air gaps of 1.5 mm or less.
Lower-resolution devices must also be placed away from other
components on a costly and dedicated flexible circuit, while the
16-bit resolution of the VCNL4040 allows it to be assembled on the
main PCB.
The VCNL4040’s ambient light and proximity sensors operate in a
parallel structure, and each offers a programmable interrupt
function with high and low thresholds to lower power consumption.
The device’s Filtron technology enables ambient light spectral
sensitivity close to that of the human eye while offering excellent
background light cancellation capabilities (including sunlight)
without utilizing the microprocessor, thereby enabling further
power savings.
With accuracy of ± 10 %, the VCNL4040’s built-in ambient light
photo diode offers detection from 0.01 lx to 5.2 klx, allowing the
device to operate in applications with dark or transparent window
designs. The sensor offers fluorescent light flicker immunity and
excellent temperature compensation from -40 °C to +85 °C.
Featuring selectable 12-bit and 16-bit outputs, the VCNL4040’s
proximity sensor uses intelligent cancellation to eliminate
cross-talk, while a smart persistence scheme ensures accurate
sensing and faster response time. The emitter wavelength peaks at
940 nm and has no visible “red-tail.”
The device offers a supply voltage range of 2.5 V to 3.6 V and
I²C bus voltage range from 1.8 V to 3.3 V. Offered in a lead-free
8-pin molded package, the sensor is RoHS-compliant, halogen-free,
and Vishay GREEN.
Samples and production quantities of the new VCNL4040 are
available now, with lead times of six to eight weeks for large
orders.
Vishay Intertechnology, Inc., a Fortune 1000 Company
listed on the NYSE (VSH), is one of the world's largest
manufacturers of discrete semiconductors (diodes, MOSFETs, and
infrared optoelectronics) and passive electronic components
(resistors, inductors, and capacitors). These components are used
in virtually all types of electronic devices and equipment, in the
industrial, computing, automotive, consumer, telecommunications,
military, aerospace, power supplies, and medical markets. Vishay’s
product innovations, successful acquisition strategy, and "one-stop
shop" service have made it a global industry leader. Vishay can be
found on the Internet at www.vishay.com.
Vishay on Facebook:
http://www.facebook.com/VishayIntertechnologyVishay Twitter
feed: http://twitter.com/vishayindust
Link to product datasheet:http://www.vishay.com/ppg?84274
(VCNL4040)
Link to product
photo:https://www.flickr.com/photos/vishay/16327881149/sizes/l
Vishay IntertechnologyAndrew Post, +1
610-251-5287andrew.post@vishay.com
Vishay Intertechnology (NYSE:VSH)
Historical Stock Chart
From Sep 2024 to Oct 2024
Vishay Intertechnology (NYSE:VSH)
Historical Stock Chart
From Oct 2023 to Oct 2024