ISL76683EVAL1Z【PDF 1/17 页】BOARD EVALUATION FOR ISL76683

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Light-to-Digital Output Sensor with Gain Selection,

Interrupt Function and I 2 C Interface

ISL76683

The ISL76683 is an integrated light sensor with an internal

integrating ADC intended for automotive applications. The ADC

provides 16-bit resolution and is capable of rejecting 50Hz and

60Hz flicker caused by artificial light sources. The I 2 C interface

provides four user programmable lux sensitivity ranges for

optimized counts/lux in a variety of lighting conditions. In

addition, the I 2 C interface provides multi-function control of the

sensor and remote monitoring capabilities.

In normal operation, power consumption is less than 300μA.

Furthermore, a software power-down mode controlled via the I 2 C

interface reduces power consumption to less than 1μA.

The ISL76683 supports twin (upper & lower) user programmed

thresholds and provides a hardware interrupt that remains

asserted low until the host clears it via the I 2 C control interface.

Designed to operate on supplies from 2.5V to 3.3V, the ISL76683 is

qualified to AEC Q100 and specified for operation over the -40°C to

+105°C (grade 2) ambient temperature range. To achieve this, the

ISL76683 is packaged in a special extended temperature clear

package.

Related Literature

AN1657 , “ISL76683 Light-to-Digital Output Sensor Evaluation

Hardware/Software User Guide”

Features

? Range select via I 2 C

- Range 1 = 0 lux to 1000 lux

- Range 2 = 0 lux to 4000 lux

- Range 3 = 0 lux to 16,000 lux

- Range 4 = 0 lux to 64,000 lux

? Human eye response (540nm peak sensitivity)

? Temperature compensated

? 16-bit resolution

? Adjustable sensitivity: up to 65 counts per lux

? User-programmable upper and lower threshold interrupt

? Simple output code, directly proportional to lux

? IR + UV rejection

? 50Hz/60Hz rejection

? 2.5V to 3.3V supply

? 6 Ld ODFN (2.1mmx2mm)

? AEC-Q100 qualified

? Pb-free (RoHS compliant)

Applications

? Automotive ambient light sensing

? Backlight control

? Lighting controls

V D D

PHOTODIODE 1

COMMAND

MUX

INTEGRATING

ADC

DATA

PHOTODIODE 2

IREF

EXT

TIMING

I 2 C

SCL

SDA

FOSC

INT

REXT

2 16

COUNTER

GND

ISL76683

FIGURE 1. BLOCK DIAGRAM

INTERRUPT

4 INT

March 24, 2014

FN7697.7

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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.

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