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PDF Si1146-M01 Data sheet ( Hoja de datos )
| Número de pieza | Si1146-M01 | |
| Descripción | PROXIMITY/UV/AMBIENT LIGHT SENSOR MODULE | |
| Fabricantes | Silicon Laboratories | |
| Logotipo |  |
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Si1145/46/47-M01
PROXIMITY/UV/AMBIENT LIGHT SENSOR MODULE WITH
I2C INTERFACE
Features
Integrated infrared proximity detector Accurate lux measurements with IR
Proximity detection adjustable from
correction algorithm
under 1 cm to over 50 cm
Industry's lowest power consumption
Three independent LED drivers
1.71 to 3.6 V supply voltage
15 current settings from 5.6 mA to 9 µA average current (LED pulsed
360 mA for each LED driver
25.6 µs every 800 ms at 180 mA
25.6 µs LED driver pulse width
plus 3 µA Si1145/46/47-M01
50 cm proximity range with single
supply)
pulse (<3 klx)
< 500 nA standby current
15 cm proximity range with single
Internal and external wake support
pulse (>3 klx)
Built-in voltage supply monitor and
Operates at up to 128 klx (direct
power-on reset controller
sunlight)
25.6 µs LED “on” time keeps total
High reflectance sensitivity
power consumption duty cycle low
< 1 µW/cm2
without compromising performance
High EMI immunity without shielded
or noise immunity
packaging
IR LED integrated inside the module
Integrated UV index sensor
I2C Serial communications
Integrated ambient light sensor
Up to 3.4 Mbps data rate
100 mlx resolution possible,
Slave mode hardware address
allowing operation under dark glass
decoding (0x60)
1 to 128 klx dynamic range possible Small-outline 10-lead
across two ADC range settings
4.9x2.85x1.2 mm QFN
Temperature Range
–40 to +85 °C
Applications
Handsets
Heart rate monitoring
Pulse oximetry
Wearables
E-book readers
Notebooks/Netbooks
Description
Portable consumer electronics
Touchless switches
Touchless sliders
Consumer electronics
Display backlighting control
The Si1145/46/47-M01 is a low-power, reflectance-based, proximity, UV Index and
ambient light module with integrated single IR LED, two additional LED driver
outputs, I2C digital interface, and programmable-event interrupt output. This
touchless sensor module includes an analog-to-digital converter, integrated high-
sensitivity visible and infrared photodiodes, digital signal processor, and three
integrated infrared LED drivers with fifteen selectable drive levels. The Si1145/46/47-
M01 offers excellent performance under a wide dynamic range and a variety of light
sources including direct sunlight. The Si1145/46/47-M01 can also work under dark
glass covers. The photodiode response and associated digital conversion circuitry
provide excellent immunity to artificial light flicker noise and natural light flutter noise.
With two or more LEDs, the Si1145/46/47-M01 is capable of supporting multiple-axis
proximity motion detection. The Si1145/46/47-M01 devices are provided in a 10-lead
4.9x2.85x1.2 mm QFN package and are capable of operation from 1.71 to 3.6 V over
the –40 to +85 °C temperature range.
Pin Assignments
Si114x-M01
DNC 1
SDA 2
SCL 3
VDD 4
INT 5
10 LEDA
9 LED1
8 GND
7 LED3/CVDD
6 LED2/CVDD
Rev. 1.0 11/14
Copyright © 2014 by Silicon Laboratories
Si1145/46/47-M01
1 page  
Si1145/46/47-M01
1. Electrical Specifications
1.1. Performance Tables
Table 1. Recommended Operating Conditions
Parameter
VDD Supply Voltage
VDD OFF Supply Voltage
VDD Supply Ripple Voltage
Operating Temperature
SCL, SDA, Input High Logic
Voltage
SCL, SDA Input Low Logic
Voltage
PS Operation under
Direct Sunlight
IrLED Emission Wavelength
IrLED Supply Voltage
IrLED Supply Ripple Voltage
Start-Up Time
LED3 Voltage
Symbol
VDD
VDD_OFF
T
I2CVIH
I2CVIL
Edc
Test Condition
OFF mode
VDD = 3.3 V
1 kHz–10 MHz
Min
1.71
–0.3
—
Typ Max Unit
— 3.6
V
1.0 V
— 50 mVpp
–40
VDDx0.7
25
—
85
VDD
°C
V
0 — VDDx0.3 V
— — 128 klx
l
VLED
750
IrLED VF = 1.0 V nominal
Applies if IrLEDs use
separate supply rail
0–30 kHz
30 kHz–100 MHz
VDD
—
—
VDD above 1.71 V
Start-up
25
VDDx0.77
850
—
—
—
—
—
950 nm
4.3 V
250 mVpp
100 mVpp
— ms
—V
Rev. 1.0
5
5 Page 
Si1145/46/47-M01
Table 5. Absolute Maximum Ratings*
Parameter
Test Condition
Min Max Unit
VDD Supply Voltage
Operating Temperature
–0.3 4
–40 85
V
°C
Storage Temperature
–65 85
°C
LED1, LED2, LED3 Voltage
LEDA Voltage
at VDD = 0 V, TA < 85 °C
–0.5
–0.5
3.6
4.3
V
V
INT, SCL, SDA Voltage
Maximum Total Current Through LED1, LED2,
LED3 and LEDA
Maximum Total Current Through GND
at VDD = 0 V, TA < 85 °C
–0.5
—
—
3.6
500
600
V
mA
mA
Forward DC Current Through LEDA
ESD Rating
TA = 25 °C
Human Body Model
— 70 mA
— 2 kV
Machine Model
— 225 V
Charged-Device Model
—
2
kV
*Note: Permanent device damage may occur if the absolute maximum ratings are exceeded.
Rev. 1.0
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet Si1146-M01.PDF ] | |
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