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ISL29038IROZ-T7, Intersil ISL29038IROZ-T7 Dáileacháin - Electronics-ic.com
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Is íomhá le haghaidh tagartha amháin.
IC PROXIMITY SENSOR AMB LT 8ODFN
Request Price & Lead Time
Proximity, Infrared and Ambient Light
Low Power Ambient Light and Proximity Sensor with
The ISL29038 is a low power Ambient Light Sensor (ALS) and
proximity (PROX) sensor. It has a built-in IR-LED driver for
proximity function. The ALS function measures the amount of
light (in the visible spectrum) incident on the ISL29038.
The ALS function has a programmable ambient IR-rejection,
which allows fine tuning of light source variations and is ideal
for light sensor applications under dark protective glass. The
ALS provides a 12-bit measurement. A passive optical filter
removes unwanted wavelengths (IR or Ultraviolet) to ensure
The proximity function includes a new offset adjustment to
compensate for the IR light reflected off the inside of the
protective glass cover and back to the ISL29038 sensor. This
offset adjustment allows the sensor to compensate for these
internal reflections and preserve the dynamic range of the
The built-in current-driver pulses an external infrared LED at a
programmed current for 90µs. The infrared light that is
reflected and received by ISL29038 is digitized by an 8-bit
ADC. The proximity sensor also has a passive optical filter
designed to pass IR and reject visible wavelengths.
The ISL29038 provides a hardware pin to indicate an interrupt
event. The interrupt pin saves power as the host micro-controller
can ‘wake-up’ on an interrupt event and does not need to poll
the device for an interrupt event. The interrupt generator is
user configurable and provides several options for ALS and
PROX trigger configurations. The ISL29038 supports an
SMBus compatible I2C interface for configuration and control.
• Ideal for applications under dark or tinted glass
• Enhanced ambient sunlight rejection to 40k Lux
• Programmable proximity sleep time between proximity
measurements optimizes power consumption
• Hardware interrupt - no polling required
• Programmable IR compensation to fine tune ALS
performance for various glass compositions
• Up to 4000 Lux, four selectable ALS ranges
• Programmable IR LED drive current to 250mA
• Operates from 2.25V to 3.63V VDD
• Tiny 2.1x2.0x0.7 (mm) ODFN package
• Display dimming and adjustment
- Mobile devices: smart phones, PDA, GPS
- Computing: monitors, laptops, notebooks
- Picture frames, tablet-PCs, LCD-TV
FIGURE 1. TYPICAL APPLICATIONS CIRCUIT
R1: 499k 1% RESISTOR
R2: 100Ω 5% RESISTOR
C1, C2: 1µF CERAMIC 10V CAPACITOR
D1: OSRAM SFH4650 INFRARED LED
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2012. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
ISL29038IROZ-T7 Achoimre na n-ábhar
1 Low P ow er Ambient Light and Pro ximity Sensor with Enhanced Infrared R ejection ISL29038 The ISL29038 is a low power Ambient Light Sensor (ALS) and proximity (PROX) sensor . It has a b uilt-in IR -LED driver for proximity functio n. The ALS func tion measures the amount of light (in the visible sp ectrum) incident on the ISL29038. The ALS functio n has a progr ammable ambient IR-rejecti on, which allows fine tuning of light source v a riations and is ideal for light sensor applications under dark pro tective glass. The ALS prov ides a 12-bit measurement. A passive optical f ilter remov es
ISL29038 2 Intersil products are manufactured, assembled a nd test ed u tilizing ISO9000 quality systems as noted in the quality ce r tification s found at www.int ersil. com/en/suppor t/qualandreliability .html Intersil products are sold by description only . Intersil Corporat ion reserves the right t o make changes in circuit design, sof t ware and/or specifications at any time without notice. Accordingly , the reader is cautioned to verify that data sheets are current before placin g orders. Information furnished by Intersil is believed t o be accurat e and reliable. How ever , no responsi
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IC PROXIMITY SENSOR AMB LT 8ODFN
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eochairfhocail a bhaineann le ISL29038IROZ-T7
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Iontráil cuid uimhir iomlán nó páirteach monaróir le ar a laghad de 3 litreacha nó uimhreacha
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