ISL76671AROZ-T7 [INTERSIL]
Low Power, <100 Lux Optimized, Analog Output Ambient Light Sensor;
| 型号： | ISL76671AROZ-T7 |
| 厂家： | 
Intersil |
| 描述： | Low Power, <100 Lux Optimized, Analog Output Ambient Light Sensor 光电二极管 |
| 文件： | 总9页 (文件大小：417K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DATASHEET
Low Power, <100 Lux Optimized, Analog Output
Ambient Light Sensor
ISL76671
Features
The ISL76671 is a low cost, light-to-voltage silicon optical sensor
combining a photodiode array, a non-linear current amplifier and
a micro-power op amp on a single monolithic IC. Similar to the
human eye, the photodiode array has peak sensitivity at 550nm
and spans the wavelength range 400nm to 600nm, rejecting UV
and IR light. The input luminance range is from 0.01 lux to
100 lux.
• Square root voltage output
• 0.01 lux to 100 lux range
• 1.8V to 3V supply range
• Close to human eye spectral response
• Fast response time
• Internal temperature compensation
• Good IR rejection
The integrated non-linear current amplifier boosts and converts
the photodiode signal into a square root output format, extending
dynamic range while maintaining excellent sensitivity in dimly lit
conditions. As such, the part is ideal for measuring incident
daylight when mounted behind heavily smoked bezels used
around displays or behind mirrors.
• Low supply current
• Operating temperature range -40°C to +105°C
• 6 Ld ODFN: 2mmx2.1mmx0.7mm
• Pb-free (RoHS compliant)
• AEC-Q100 Qualified
The device consumes minimum power. A dark current
compensation circuit minimizes the effect of temperature
dependent leakage currents in the absence of light, improving
the light sensitivity at low lux levels. The output gain has been
optimized to require a relatively low value external bias resistor
that falls within recommended automotive EMI limits. The
built-in 1µA op amp gives the ISL76671 an output voltage driving
advantage for heavier loads that can drive an ADC directly.
Applications
• Display backlight control - central info display and
instrumentation
• Anti-glare mirror systems - specified to operate behind Bezel
mounting
The ISL76671 is housed in an ultra compact 2mmx2.1mm ODFN
plastic surface mount package. Operation is rated from -40°C to
+105°C, Grade 2 per AEC-Q100.
VDD
1
VOUT
-
6
CURRENT
AMPLIFIER
LIGHT DATA
PROCESS
+
OUTPUT CURRENT a LIGHT INTENSITY
PHOTODIODE
ARRAY
GND
2
REXT
4
FIGURE 1. SIMPLIFIED BLOCK DIAGRAM
April 20, 2015
FN7716.3
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. 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.
1
ISL76671
Pin Configuration
Pin Descriptions
ISL76671
(6 LD ODFN)
TOP VIEW
VDD
GND
NC
1
2
3
6
5
4
VOUT
NC
PAD
REXT
PIN NUMBER
PIN NAME
VDD
PIN DESCRIPTION
1
2
Voltage Supply (1.8V to 3V).
Ground
GND
3, 5
4
NC
No connect
REXT
Connected to an external resistor to GND, setting the light-to-voltage scaling constant.
A R value of 100kΩis recommended.
EXT
6
-
VOUT
PAD
Voltage Output.
Thermal Pad. The thermal pad can be connected to GND or electrically isolated.
Ordering Information
PACKAGE
PART NUMBER
(Notes 1, 2, 3)
Tape and Reel
(RoHS Compliant)
PKG.
DWG. #
ISL76671AROZ-T7
ISL76671AROZ-T7A
ISL76671EVAL1Z
6 Ld ODFN (Tape and Reel)
L6.2X2.1
L6.2X2.1
6 Ld ODFN (Tape and Reel)
Evaluation Board
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.
3. For Moisture Sensitivity Level (MSL), please see device information page for ISL76671. For more information on MSL please see techbrief TB477.
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ISL76671
Absolute Maximum Ratings (T = +25°C)
Thermal Information
A
Supply Voltage Between V and GND . . . . . . . . . . . . . . . . . . . . . . . . . .3.6V
Thermal Resistance (Typical)
6 Ld ODFN (Notes 4, 5) . . . . . . . . . . . . . . . .
Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+105°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Pb-Free Reflow Profile (*) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB477
*Peak temperature during solder reflow +260°C max
JA (°C/W)
88
JC (°C/W)
7.94
DD
R
V
V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (-0.5V + GND) to (0.5V + V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (-0.5V + GND) to (0.5V + V
Short Circuit Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mA
)
)
EXT
DD
DD
OUT
OUT
ESD Rating
Human Body Model (Tested per AEC-Q100-002) . . . . . . . . . . . . . . .2.5kV
Machine Model (Tested per AEC-Q100-003). . . . . . . . . . . . . . . . . . . 250V
Charged Device Model (Tested per AEC-Q100-011). . . . . . . . . . . . . . 1kV
Latch-up (Tested per AEC-Q100-004, Class II, Level A) . . . . . . . . . . 100mA
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
JA
Brief TB379.
5. For , the “case temp” location is the center of the exposed metal pad on the package underside.
JC
Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating
conditions: V = 3V, T = -40°C to +105°C, R
= 100kΩ, no load at V , and green LED light. (Typical values are at T = +25°C). Boldface limits apply
OUT A
DD
A
EXT
across the operating temperature range, -40°C to +105°C.
MIN
MAX
PARAMETER
E
DESCRIPTION
TEST CONDITIONS
(Note 6)
TYP
(Note 6)
UNITS
Lux
Range of Input Light Intensity for Square
Root Relationship to be Held
0.01 - 100
V
Operating Supply Voltage
Supply Current
1.8
3
2
V
µA
µA
µA
V
DD
I
E = 0 lux, -40°C to +60°C
E = 0 lux, -40°C to +105°C
E = 100 lux
0.7
DD
5
23
35
V
Light-to-Voltage Accuracy
E = 10 lux
0.65
1.35
1.85
0.95
OUT
E = 50 lux
V
E = 100 lux
1.4
2.3
20
V
V
Voltage Output in the Absence of Light
E = 0 lux, -40°C to +60°C
E = 0 lux, -40°C to +105°C
mV
mV
%
DARK
120
V
OUT
Output Voltage Variation Over Three Light
Sources: Fluorescent, Incandescent and
Halogen
10
PSRR
Power Supply Rejection Ratio
E = 100 lux
0.12
mV/V
V
V
Maximum Output Compliance Voltage at
95% of Nominal Output
V
- 0.7V
DD
O-CMPL
V
Maximum Output Voltage Swing
Rise Time
V
µs
V
O-MAX
DD
t
E = 0 lux to 100 lux
E = 100 lux to 0 lux
E = 0 lux to 100 lux
E = 100 lux to 0 lux
95
R
t
Fall Time
155
350
250
±12
13
µs
F
t
Delay Time for Rising Edge
Delay Time for Falling Edge
Short Circuit Current of Op Amp
Slew Rate of Op Amp
Offset Voltage of Op Amp
µs
D
t
µs
S
ISC
SR
mA
V/ms
mV
V
±0.9
OS
NOTE:
6. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
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ISL76671
POWER SUPPLY
OR
SOURCE METER
INPUT
LIGHT
V
DD
10% 90%
t
t
R
S
t
%
90%
F
ISL76671
V
OUT
10%
FUNCTION
GENERATOR
OUTPUT
R
EXT
t
D
FIGURE 2. TEST CIRCUIT FOR RISE/FALL TIME MEASUREMENT
FIGURE 3. TIMING DIAGRAM
Typical Performance Curves
V
= 3V, T = +25°C, R
= 100kΩ, no load at V , green LED light, unless otherwise
DD
A
EXT
OUT
specified.
1.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
HUMAN EYE RESPONSE
FLUORESCENT
1.0
0.8
0.6
LIGHT SENSOR RESPONSE
HALOGEN
INCAND
SUN
0.4
0.2
0.0
-0.2
300 400
600
800
1.0k
1.1k
350
550
750
950
WAVELENGTH (nm)
WAVELENGTH (nm)
FIGURE 4. SPECTRAL RESPONSE
FIGURE 5. SPECTRUM OF FOUR LIGHT SOURCES NORMALIZED BY
LUMINOUS INTENSITY (LUX)
3.25
3.05
2.85
2.65
2.45
RADIATION PATTERN
0°
10°
10°
20°
20°
LUMINOSITY
30°
30°
40°
ANGLE
40°
VOUT + 0.7V
50°
50°
60°
2.25
60°
70°
80°
2.05
1.85
70°
1.65
1.45
1.25
LOW LUX LIMIT
80°
90°
90°
1.0
0.2 0.4
0.6 0.8
RELATIVE SENSITIVITY
0.00001 0.0001 0.001 0.01
0.1
1
10
100
1000
LUX
FIGURE 6. RADIATION PATTERN
FIGURE 7. V OPERATING RANGE (WHITE LED)
DD
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ISL76671
Typical Performance Curves
V
= 3V, T = +25°C, R
= 100kΩ, no load at V , green LED light, unless otherwise
OUT
DD
A
EXT
specified.
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0.01
0.1
1
10
100
1000
0.001
0.01
0.1
1.0
10
LIGHT INTENSITY (LUX)
LIGHT INTENSITY (LUX)
FIGURE 8. OUTPUT VOLTAGE vs LIGHT INTENSITY 0.1 LUX TO
100 LUX
FIGURE 9. OUTPUT VOLTAGE vs LIGHT INTENSITY 0.01 LUX TO
5 LUX
3.0
2.5
2.0
1.5
1.0
0.5
0
120
100
80
60
40
20
0
-60
-40
-20
0
20
40
60
80
100 120
-60
-40
-20
0
20
40
60
80
100 120
TEMPERATURE ( °C )
TEMPERATURE (° C )
FIGURE 10. OUTPUT VOLTAGE vs TEMPERATURE AT 0 LUX
FIGURE 11. SUPPLY CURRENT vs TEMPERATURE AT 0 LUX
1.001
7.80
7.78
10 LUX
0.999
7.76
10 LUX
0.997
7.74
7.72
7.70
7.68
50 LUX
0.995
0.993
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FIGURE 12. NORMALIZED OUTPUT VOLTAGE vs SUPPLY VOLTAGE
FIGURE 13. SUPPLY CURRENT vs SUPPLY VOLTAGE
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ISL76671
Typical Performance Curves
V
= 3V, T = +25°C, R
= 100kΩ, no load at V , green LED light, unless otherwise
DD
A
EXT
OUT
specified.
16.95
23.50
16.90
23.45
23.40
23.35
23.30
23.25
23.20
100 LUX
16.85
50 LUX
16.80
16.75
16.70
16.65
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
2.2
2.4
2.6
2.8
3.0
3.2
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FIGURE 14. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 15. SUPPLY CURRENT vs SUPPLY VOLTAGE
30
1.10
25
20
15
10
5
1.05
1.00
0.95
0.90
0.85
100 LUX
10 LUX
100LUX
10 LUX
50 LUX
50 LUX
0
-60
-60
-40
-20
0
20
40
60
80
100 120
-40
-20
0
20
40
60
80
100 120
TEMPERATURE (°C)
TEMPERATURE (° C )
FIGURE 16. NORMALIZED OUTPUT VOLTAGE vs TEMPERATURE
FIGURE 17. SUPPLY CURRENT vs TEMPERATURE
FREQUENCY = 100Hz
FREQUENCY = 100Hz
ISL76671 OUTPUT (V)
LIGHT SOURCE
LIGHT SOURCE
100µs/DIV
ISL76671 OUTPUT (V)
100µs/DIV
FIGURE 18. DELAY TIME vs LUX CHANGE FROM 0 LUX
FIGURE 19. DELAY TIME vs LUX CHANGE TO 0 LUX
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ISL76671
Optical Sensor Location Outline
Application Information
Light-to-Voltage Conversion
The ISL76671 has responsiveness that is a square root function
of the light intensity intercepted by the photodiode in lux.
Because the photodiode has a responsivity that resembles the
human eye, conversion rate is independent of the light source
(fluorescent light, incandescent light or direct sunlight).
The green area in Figure 20 shows the optical sensor location
outline of ISL76671. Along the pinout direction, the center line
(CL) of the sensor coincides with that of the packaging. The
sensor width in this direction is 0.39mm. Perpendicular to the
pinout direction, the CL of the sensor has an 0.19mm offset from
the CL of packaging away from pin 1. The sensor width in this
direction is 0.46mm.
18A
100lux
(EQ. 1)
----------------------
E R
EXT
V
=
OUT
In Equation 1, V
OUT
is the output voltage, E is the light intensity
is used to
and R
is the value of the external resistor. The R
EXT
EXT
set the light-to-voltage scaling constant. The compliance of the
ISL76671's output circuit may result in premature saturation
when an excessively large R
is used. A R value of 100kΩ is
EXT
EXT
recommended for automotive applications. The output
compliance voltage is 700mV below the supply voltage as listed
in V
of the “Electrical Specifications” table on page 3.
O-MAX
2.10mm
2.00mm
0.46mm
0.19mm
0.39mm
FIGURE 20. 6 LD ODFN SENSOR LOCATION OUTLINE
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ISL76671
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you
have the latest revision.
DATE
REVISION
FN7716.3
CHANGE
April 20, 2015
Changed AEC Q100 to AEC-Q100
Updated ordering information on page 2 by adding T7A part and Evaluation Board.
Updated ESD Ratings in “Absolute Maximum Ratings (T = +25°C)” on page 3 as follows:
A
From: Human Body Model (Tested per JESD22-A114E). . . . . . . . . .. 3kV
Machine Model (Tested per JESD22-A115C) . . . . . . . . . . . . . . . . . . 300V
Charged Device Model (Tested per JESD22-C101E). . . . . . . . . . . . . . 1kV
Latch Up (Tested per JESD78C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
To: Human Body Model (Tested per AEC-Q100-002) . . . . . . . . . . . . . . 2.5kV
Machine Model (Tested per AEC-Q100-003). . . . . . . . . . . . . . . . . . . 250V
Charged Device Model (Tested per AEC-Q100-011) . . . . . . . . . . . . . 1kV
Latch-up (Tested per AEC-Q100-004, Class II, Level A) . . . . . . . . . . 100mA
Updated POD L6.2x2.1 to current rev with changes as follows:
Changed Note 5 From: Tiebar shown (if present) is a non-functional feature.
To: Tiebar shown (if present) is a non-functional feature and maybe located on any of the 4 sides (or ends).
Updated Arrows to correct arrow type
Updated datasheet with current Intersil standards.
December 23, 2013
December 12, 2011
FN7716.2
FN7716.1
Page 8
- 2nd line of the disclaimer changed from:
"Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted"
to:
"Intersil Automotive Qualified products are manufactured, assembled and tested utilizing TS16949 quality
systems as noted"
“Thermal Information” on page 3, changed from:
Pb-Free Reflow Profile (*) ...... see TB487
*Peak temperature during solder reflow +235°C max
To
Pb-Free Reflow Profile (*) ...... see TB477
*Peak temperature during solder reflow +260°C max
“Electrical Specifications” on page 3:
Added Min value of 1.4V and Max value of 2.3V for V
where e = 100 lux
OUT
October 19, 2011
FN7716.0
Initial Release
About Intersil
Intersil Corporation is a leading provider of innovative power management and precision analog solutions. The company's products
address some of the largest markets within the industrial and infrastructure, mobile computing and high-end consumer markets.
For the most updated datasheet, application notes, related documentation and related parts, please see the respective product
information page found at www.intersil.com.
You may report errors or suggestions for improving this datasheet by visiting www.intersil.com/ask.
Reliability reports are also available from our website at www.intersil.com/support
For additional products, see www.intersil.com/en/products.html
Intersil Automotive Qualified products are manufactured, assembled and tested utilizing TS16949 quality systems as noted
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time
without notice. 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
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ISL76671
Package Outline Drawing
L6.2x2.1
6 LEAD OPTICAL DUAL FLAT NO-LEAD PLASTIC PACKAGE (ODFN)
Rev 4, 2/15
2.10
A
6
B
PIN #1
INDEX AREA
6
1
PIN 1
INDEX AREA
0.65
1.35 1.30 REF
2.00
4
6x0.30 ±0.05
(4X)
0.10
0.10 M
C A B
0.65
6x0.35 ±0.05
TOP VIEW
BOTTOM VIEW
2.50
2.10
PACKAGE
OUTLINE
SEE DETAIL "X"
0.10 C
0.65
(4x0.65)
MAX 0.75
C
BASE PLANE
SEATING PLANE
0.08 C
SIDE VIEW
0.2 REF
(1.35)
5
C
(6x0.30)
(6x0.20)
(6x0.55)
TYPICAL RECOMMENDED LAND PATTERN
0.00 MIN.
0.05 MAX.
DETAIL "X"
NOTES:
1. Dimensions are in millimeters.
Dimensions in ( ) for Reference Only.
2. Dimensioning and tolerancing conform to ASME Y14.5m-1994.
3.
Unless otherwise specified, tolerance: Decimal ± 0.05
4. Dimension applies to the metallized terminal and is measured
between 0.15mm and 0.30mm from the terminal tip.
Tiebar shown (if present) is a non-functional feature and
maybe located on any of the 4 sides (or ends).
5.
6.
The configuration of the pin #1 identifier is optional, but must be
located within the zone indicated. The pin #1 identifier may be
either a mold or mark feature.
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