ISL29011IROZ-T7 Intersil, ISL29011IROZ-T7 Datasheet

ISL29011IROZ-T7

Manufacturer Part Number

ISL29011IROZ-T7

Description

IC PROXIMITY SENSOR AMB LT 8ODFN

Manufacturer

Intersil

Datasheet

1.ISL29011IROZ-T7.pdf (16 pages)

Specifications of ISL29011IROZ-T7

Output Type

Digital - I²C

Sensor Type

Light and Proximity

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

ISL29011IROZ-T7TR

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Digital Ambient Light Sensor and

Proximity Sensor with Interrupt Function

The ISL29011 is an integrated ambient and infrared light to

digital converter with a built-in IR LED driver and I

(SMBus Compatible). This device provides not only ambient

light sensing to allow robust backlight/display brightness

control but also infrared sensing to allow proximity estimation

featured with interrupt function.

For ambient light sensing, an internal ADC has been

designed based on the charge-balancing A/D conversion

technique. The ADC conversion time is nominally 90ms and

is user adjustable from 11µs to 90ms, depending on

oscillator frequency and ADC resolution. This ADC 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 I

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

0.5µA.

The ISL29011 supports both hardware and software

interrupts that remain asserted until the host clears it through

detection.

Designed to operate on supplies from 2.25V to 3.63V, the

ISL29011 is specified for operation over the -40°C to +85°C

ambient temperature range. It is packaged in a clear, Pb-free

8 Ld ODFN package.

C interface for ambient light sensing and proximity

Data Sheet

C Interface

1-888-INTERSIL or 1-888-468-3774

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

Features

Proximity Sensing

• Ambient IR Cancellation During Proximity Sensing

• IR LED Driver with Programmable Source Current

• Programmable LED current Modulation Frequency

• Variable Conversion Resolution

Ambient Light Sensing

• Simple Output Code Directly Proportional to lux

• Adjustable Sensitivity up to 65 Counts per lux

• Selectable Range (via I

• Integrated 50/60Hz Noise Rejection

• Works Under Various Light Sources, Including Sunlight

Ideal Spectral Response for Light and Proximity Sensor

• Light Sensor Close to Human Eye Response

• Proximity sensor range from 850nm to 950nm

Ultra Low Power

• 90μA Max Operating Current

• Software Shutdown and Automatic Shutdown

Easy to Use

• I

• No Complex Algorithms Needed

• Temperature Compensated

• Small Form Factor

Additional Features

• I

• 1.7V to 3.63V Supply for I

• 2.25V to 3.63V Sensor Power Supply

• Pb-Free (RoHS compliant)

Applications

• Display and Keypad Dimming Adjustment and Proximity

• Industrial and Medical Light and Proximity Sensing

- Works Under Direct Sunlight

- Adjustable Current Drive from 100mA to 12.5mA

- 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

- Can use either 850nm or 950nm LED solution

- 0.5μA Max Shutdown Current

- 8 Ld 2.0mmx2.1mmx0.7mm ODFN Package

Sensing for:

- Mobile Devices: Smart Phone, PDA, GPS

- Computing Devices: Notebook PC, Webpad

- Consumer Devices: LCD-TV, Digital Picture Frame, Digital

C (SMBus Compatible) Output

C and SMBus Compatible

Camera

February 4, 2010

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

C Interface

ISL29011

FN6467.3

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ISL29011IROZ-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, 2010. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ...

Page 2

... Ordering Information PART NUMBER (Notes ISL29011IROZ-T7 ISL29011IROZ-EVALZ NOTES: 1. Please refer to TB347 for details on reel specifications. 2. 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

Block Diagram PHOTODIODE ARRAY LIGHT DATA PROCESS ALS AND IR IR PHOTODIODE ARRAY 4 REXT 3 ISL29011 VDDA 2 INTEGRATION ADC IREF FOSC 3 GND ISL29011 VDDD 1 COMMAND REGISTER DATA REGISTER SDA SCL 5 INTERRUPT ...

Page 4

... Thermal Resistance (Typical, Note 4) DD +/- 0. ODFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DDD Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . +90°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +100°C + 0.5V Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85° 0.5V Pb-Free Reflow Profile .see link below DD http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 3V +25° 499kΩ 1% tolerance, 16-bit ADC operation, unless otherwise A EXT ,V ) ...

Page 5

Electrical Specifications V SUP(V (Continued) PARAMETER DESCRIPTION V Voltage Head Room of IRDR Pin IRLED t Rise Time for IRDR Source Current r t Fall Time for IRDR Source Current LED Modulation Frequency IRLED1 f IR LED ...

Page 6

I2C Electrical Specifications For SCL and SDA unless otherwise noted, V 16-bit ADC operation (Note 9). PARAMETER DESCRIPTION t Set-up Time for STOP Condition SU:STO t Bus Free Time Between a STOP and START BUF Condition C Capacitive Load for ...

Page 7

ADC can be configured at its lowest range (Range 1) in the ambient light sensing. For very bright conditions, the ADC can be configured at its highest range (Range 4) in the proximity sensing. Low-Power Operation The ISL29011 ...

Page 8

START DEVICE ADDRESS DATA SDA SDA SDA DRIVEN BY MASTER OUT CLK ...

Page 9

Once triggered, INT pin stays low and the status bit stays high. Both interrupt pin and the status bit are automatically cleared at the end of Command Register I transfer. TABLE 3. INTERRUPT FLAG BIT 2 OPERATION 0 Interrupt is ...

Page 10

Registers 06 and 07 hex set the high (HI) threshold for the interrupt pin and the interrupt flag. 06 hex is the LSB and 07 hex is the MSB. By default, the Interrupt threshold hex for both ...

Page 11

... Upon power-up, please ensure a VDD slew rate of 0.5V/ms or greater. After power-up the user’s power supply temporarily deviates from our specification (2.25V to 3.63V), Intersil recommends the user write 0x00 to two registers: 0x08, 0x00 (in that order), wait ~1ms or more and then rewrite all registers as desired. ...

Page 12

The device can be tied onto a system’ together with other I C compliant devices. Soldering Considerations Convection heating is recommended for reflow soldering; direct-infrared heating is not recommended. The plastic ODFN package does not require a ...

Page 13

Typical Performance Curves 1.2 SUN 1.0 0.8 0.6 0.4 0.2 0 300 400 500 600 700 800 WAVELENGTH (nm) FIGURE 6. SPECTRUM OF FOUR LIGHT SOURCES RADIATION PATTERN 0° 10° 10° 20° LUMINOSITY 30° ANGLE 40° 50° 60° 70° 80° ...

Page 14

Typical Performance Curves 350 300 PIG'S SKIN 250 4mm CENTER-TO-CENTER FOR ISL29011 AND SFH4650, 200 ISOLATED BY BARRIER 150 IR TRANSMITTING GLASS 18% GRAY 130 CTS = 500 CTS x 65% x 65% 100 = 211 CTS BLOND HAIR 50 ...

Page 15

... 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 16

Package Outline Drawing L8.2.1x2.0 8 LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN) Rev 1, 12/09 2.10 6 PIN 1 INDEX AREA (2X) 0.10 TOP VIEW 2.50 2.10 (6x0.50) (8x0.20) (8x0.55) (0.75) TYPICAL RECOMMENDED LAND PATTERN 16 ISL29011 A B ...

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