ISL29028IROZ-T7 Intersil, ISL29028IROZ-T7 Datasheet - Page 11

• Manufacturer Part Number: ISL29028IROZ-T7
• Description: IC SENSOR LIGHT-PROXIMITY 8ODFN
• Manufacturer: Intersil

Specifications of ISL29028IROZ-T7

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Suggested PCB Footprint
It is important that 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)
Typical Performance Curves
FIGURE 6. SPECTRUM OF FOUR LIGHT SOURCES
C1
1µF
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
350
V
DD
NORMALIZED BY LUMINOUS INTENSITY
(LUX)
C2
0.1µF
REXT
499kΩ
550
WAVELENGTH (nm)
2
3
1
4
11
ADDR0
VDD
GND
REXT
SLAVE_0
ISL29028
SUN
IRDR
SDA
SCL
FLUORESCENT
INT
HALOGEN
750
V
IR-LED
FIGURE 5. ISL29028 TYPICAL CIRCUIT
8
7
6
5
10kΩ
R1
INCAND.
950
ISL29028
V
DD
R2
10kΩ
SLAVE_1
= 3.0V, R
SDA
SCL
Layout Considerations
The ISL29028 is relatively insensitive to layout. Like
other I
performance even in significantly noisy environments.
There are only a few considerations that will ensure best
performance.
Route the supply and I
sources of noise. A 0.1µF and 1µF power supply decoupling
capacitors need to be placed close to the device.
R3
10kΩ
FIGURE 7. ISL29028 SENSITIVITY TO DIFFERENT
EXT
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
2
300
C devices, it is intended to provide excellent
= 499kΩ
ALS
WAVELENGTHS
400
V
I
I2C_PULL-UP
2
C SLAVE_n
500
2
SDA
C traces as far as possible from all
SCL
WAVELENGTH (nm)
600
HUMAN EYE
700
800
MICROCONTROLLER
INT
SDA
SCL
900
I
2
C MASTER
IR/PROX
1000
March 2, 2010
FN6780.1
1100