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ISL29015

DescriptionThe ISL29015 is an integrated ambient and infrared light to digital converter with a built-in IR LED driver and I2C/SMBus interface. This ISL29015 provides not only ambient light sensing to allow robust backlight/display brightness control but also infrared sensing to allow proximity es...

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SeekIC No. : 004379668 Detail

ISL29015: DescriptionThe ISL29015 is an integrated ambient and infrared light to digital converter with a built-in IR LED driver and I2C/SMBus interface. This ISL29015 provides not only ambient light sensing ...

ISL29015 Data Sheet

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Part Number:
ISL29015
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/24

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Description



Description

The ISL29015 is an integrated ambient and infrared light to digital converter with a built-in IR LED driver and I2C/SMBus interface. This ISL29015 provides not only ambient light sensing to allow robust backlight/display brightness control but also infrared sensing to allow proximity estimation. For ambient light sensing, an internal 16-bit ADC has been designed based on the charge-balancing A/D conversion technique. The ADC ISL29015 conversion time is nominally 100ms and is user adjustable from 25s to 100ms depends on oscillator frequency and ADC resolution. This ADC ISL29015 is capable of rejecting 50Hz and 60Hz flicker noise caused by artificial light sources. The lux-range-select feature allows users to program the lux range for optimized counts/lux. For proximity sensing, the ADC is used to digitize the output signal from the photodiode array when the internal IR LED driver is turned on and off for the programmed time periods under user-selected modulation frequency to drive the external IR LED. As this proximity sensor employs a noise cancellation scheme to highly reject unwanted IR noise, the digital output of proximity sensing decreases with distance. The driver output current is user selectable up to 100mA to drive different types of IR emitters LEDs. Six different modes of operation can be selected via the I2C interface: Programmable ALS once with auto power-down, programmable IR sensing once, programmable proximity sensing once, programmable continuous ALS sensing, programmable continuous IR sensing and programmable continuous proximity sensing. The programmable one-time operation modes greatly reduce power because an immediate automatic shutdown reduces overall supply current less than 1A. Designed to operate on supplies from 2.25V to 3.3V, the ISL29015 is specified for operation over the -40C to +85C ambient temperature range. The ISL29015 is packaged in a clear, Pb-free 6 Ld ODFN package.


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