ISL29023IROZ-T7 Intersil, ISL29023IROZ-T7 Datasheet

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ISL29023IROZ-T7

Manufacturer Part Number
ISL29023IROZ-T7
Description
IC SENSOR LIGHT-DGTL I2C 6ODFN
Manufacturer
Intersil
Datasheet

Specifications of ISL29023IROZ-T7

Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Integrated Digital Ambient Light Sensor
with Interrupt Function
The ISL29023 is an integrated ambient and infrared light to
digital converter with I
advanced self-calibrated photodiode array emulates human
eye response with excellent IR rejection. The on-chip 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.
For ambient light sensing, an internal 16-bit ADC has been
designed based upon the charge-balancing technique. The
ADC conversion time is nominally 90ms and is user
adjustable from 11µs to 90ms, depending on oscillator
frequency and ADC resolution. In normal operation, typical
current consumption is 70µA. In order to further minimize
power consumption, two power-down modes have been
provided. If polling is chosen over continuous measurement
of light, the auto-power-down function shuts down the whole
chip after each ADC conversion for the measurement. The
other power-down mode is controlled by software via the I
interface. The power consumption can be reduced to less
than 0.3µA when powered down.
The ISL29023 supports a software and hardware interrupt
that remains asserted until the host clears it through I
interface. Function of ADC conversion continues without
stopping after interrupt is asserted.
Designed to operate on supplies from 2.25V to 3.63V with an
I
operation over the -40°C to +85°C ambient temperature range.
Pinout
2
C supply from 1.7V to 3.63V, the ISL29023 is specified for
*EXPOSED PAD CAN BE CONNECTED TO GND OR
ELECTRICALLY ISOLATED
REXT
GND
VDD
2
C (SMBus Compatible) Interface. Its
1
2
3
(6 LD ODFN)
TOP VIEW
ISL29023
®
1
Data Sheet
6
5
4
SDA
SCL
INT
2
1-888-INTERSIL or 1-888-468-3774
C
2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
C
Features
Ambient Light Sensing
• Simple Output Code Directly Proportional to lux
• Variable Conversion Resolution up to 16-bits
• Adjustable Sensitivity up to 65 Counts per lux
• Selectable Range (via I
• Integrated 50/60Hz Noise Rejection
• Temperature Compensated
• Works Under Various Light Sources, Including Sunlight
Excellent Spectral Response
• Light Sensor Close to Human Eye Response
Ultra Low Power
• 85μA Max Operating Current
• Software Shutdown and Automatic Shutdown
Additional Features
• I
• 1.7V to 3.63V Supply for I
• 2.25V to 3.63V Sensor Power Supply
• Small Form Factor
• Pb-Free (RoHS compliant)
Applications
• Display and Keypad Dimming Adjustment for:
• Industrial and Medical Light Sensing
- Range 1 = 0.015 lux to 1,000 lux
- Range 2 = 0.06 lux to 4,000 lux
- Range 3 = 0.24 lux to 16,000 lux
- Range 4 = 0.96 lux to 64,000 lux
- Excellent Light Sensor IR and UV Rejection
- 0.3μA Max Shutdown Current
- 6 Ld 2.0x2.1x0.7mm ODFN Package
- Mobile Devices: Smart Phone, PDA, GPS
- Computing Devices: Notebook PC, Webpad
- Consumer devices: LCD-TV, Digital Picture Frame,
2
C and SMBus Compatible
Digital Camera
All other trademarks mentioned are the property of their respective owners.
March 3, 2009
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2009. All Rights Reserved.
2
C)
2
C Interface
ISL29023
FN6691.0

Related parts for ISL29023IROZ-T7

ISL29023IROZ-T7 Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2009. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL29023 FN6691 ...

Page 2

... Ordering Information PART NUMBER (Note) ISL29023IROZ-T7* ISL29023IROZ-EVALZ *Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 ...

Page 3

... Thermal Information Thermal Resistance (Typical, Note ODFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +90°C +0.5V Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +100°C DD Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Pb-Free Reflow Profile .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = +25° 499kΩ 1% tolerance, 16-bit ADC operation, unless otherwise specified. A EXT ...

Page 4

Principles of Operation Photodiodes and ADC The ISL29023 contains two photodiode arrays which convert light into current. The spectral response for ambient light sensing and IR sensing is shown in Figure 5 in the performance curves section. After light is ...

Page 5

I C DATA START DEVICE ADDRESS SDA SDA OUT SDA DRIVEN BY MASTER 2 ...

Page 6

Interrupt flag; Bit 2. This is the status bit of the interrupt. The bit is set to logic high when the interrupt thresholds have been triggered (out of threshold window), and logic low when not yet triggered. Once activated ...

Page 7

... Suggested PCB Footprint It is important that the users check the “Surface Mount Assembly Guidelines for Optical Dual FlatPack No Lead (ODFN) Package” before starting ODFN product board mounting. http://www.intersil.com/data/tb/TB477.pdf n = 4-BIT Layout Considerations 176µs 11µs The ISL29023 is relatively insensitive to layout. Like other 352µ ...

Page 8

TO 3.63V SLAVE_0 1 VDD SDA 2 GND SCL C1 C2 1µF 0.1µF 3 REXT INT ISL29023 R EXT 499k 8 ISL29023 RES1 10k 10k SLAVE_1 6 SDA 5 SCL ...

Page 9

Typical Performance Curves 1.2 1.0 0.8 0.6 0.4 0.2 0 300 400 500 600 700 800 WAVELENGTH (nm) FIGURE 4. NORMALIZED SPECTRAL RESPONSE OF LIGHT SOURCES RADIATION PATTERN 0° 10° 10° 20° LUMINOSITY 30° ANGLE 40° 50° 60° 70° 80° ...

Page 10

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

Page 11

Package Outline Drawing L6.2x2.1 6 LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 0, 9/06 2.10 6 PIN 1 INDEX AREA (4X) 0.10 TOP VIEW ( 95) TYPICAL RECOMMENDED LAND PATTERN 11 ...

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