ISL29033 Datasheet, PDF (1/15 Pages) Intersil Corporation – Simple output code directly proportional to lux

DATASHEET
Ultra-Low Lux, Low Power, Integrated Digital Ambient
Light Sensor with Interrupt Function
ISL29033
The ISL29033 is an integrated ambient and infrared
light-to-digital converter with I²C (SMBus Compatible)
interface. Its advanced, self-calibrated photodiode array
emulates human eye response with excellent IR rejection. The
on-chip 16-bit ADC is capable of rejecting 50Hz and 60Hz
flicker caused by artificial light sources. The lux range select
feature allows users to program the lux range for optimized
counts/lux. Power consumption can be reduced to less than
0.3µA when powered down.
The ISL29033 supports a software and hardware interrupt that
remains asserted until the host clears it through the I²C
interface. The function of ADC conversion continues without
stopping after interrupt is asserted.
Designed to operate on supplies from 2.25V to 3.63V with an
I²C supply from 1.7V to 3.63V, the ISL29033 is specified for
operation across the -40°C to +85°C ambient temperature
range.
Related Literature
• For a full list of related documents, visit our web page
- ISL29033 product page
Features
• Ambient light sensing
• Simple output code directly proportional to lux
• Variable conversion resolution up to 16 bits
• Adjustable sensitivity up to 520 counts per lux
• Measurement range: 0.0019 to 8,000lux with four
selectable ranges
• Program interrupt feature
• Light sensor close to human eye response
- Excellent light sensor IR and UV rejection
• 75μA maximum operating current
- 0.3μA maximum shutdown current
• 6 Ld 2.0mmx2.1mmx0.7mm ODFN package
Applications
• Display and keypad dimming adjustment for:
- Mobile devices: smart phone, PDA, GPS
- Computing devices: notebook PC, webpad
- Consumer devices: LCD-TV, digital picture frame, digital
camera
• Industrial and medical light sensing
V_DD
1
PHOTODIODE
ARRAY
LIGHT
DATA
PROCESS
INTEGRATION
ADC
IREF
f_OSC
COMMAND
REGISTER
DATA
REGISTER
I²C/SMBus
INTERRUPT
REGISTER
5 _SCL
6 SDA
September 28, 2016
FN7656.5
3
REXT
2
4
GND
INT
FIGURE 1. BLOCK DIAGRAM
1
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 2011, 2013, 2015, 2016. 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.