SENSOR MODULE. Si1143-M01 Datasheet

Si1143-M01 MODULE. Datasheet pdf. Equivalent

Part Si1143-M01
Description PROXIMITY/AMBIENT LIGHT SENSOR MODULE
Feature Si1141/42/43-M01 PROXIMITY/AMBIENT LIGHT SENSOR MODULE WITH I2C INTERFACE Features  Integrated i.
Manufacture Silicon Laboratories
Datasheet
Download Si1143-M01 Datasheet



Si1143-M01
Si1141/42/43-M01
PROXIMITY/AMBIENT LIGHT SENSOR MODULE WITH I2C INTERFACE
Features
Integrated infrared proximity detector Industry's lowest power consumption
Proximity detection adjustable from 1.71 to 3.6 V supply voltage
under 1 cm to over 50 cm
25.6 µs LED “on” time keeps total
Three independent LED drivers
power consumption duty cycle low
15 current settings from 5.6 mA to
without compromising performance
360 mA for each LED driver
or noise immunity
25.6 µs LED driver pulse width
9 µA average current (LED pulsed
50 cm proximity range with single
25.6 µs every 800 ms at 180 mA
pulse (<3 klx)
plus 3 µA Si1141/42/43-M01 supply)
15 cm proximity range with single
< 500 nA standby current
pulse (>3 klx)
Internal and external wake support
Operates at up to 128 klx (direct
Built-in voltage supply monitor and
sunlight)
power-on reset controller
High reflectance sensitivity
Single IR LED integrated inside the
< 1 µW/cm2
module
High EMI immunity without shielded Serial communications
packaging
Up to 3.4 Mbps data rate
Integrated ambient light sensor
Slave mode hardware address
100 mlx resolution possible, allowing
decoding (0x5A)
operation under dark glass
Small-outline 10-lead
1 to 128 klx dynamic range possible 4.9x2.85x1.2 mm QFN
across two ADC range settings
Temperature Range
Accurate lux measurements with IR –40 to +85 °C
correction algorithm
Applications
Handsets
Heart rate monitoring
Pulse oximetry
E-book readers
Notebooks/Netbooks
Portable consumer electronics
Audio products
Security panels
Tamper detection circuits
Description
Dispensers
Valve controls
Smoke detectors
Touchless switches
Touchless sliders
Occupancy sensors
Consumer electronics
Industrial automation
Display backlighting control
The Si1141/42/43-M01 is a low-power, reflectance-based, infrared proximity 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 Si1141/42/43-M01 offers excellent
performance under a wide dynamic range and a variety of light sources including direct
sunlight. The Si1141/42/43-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 Si1141/42/43-M01 is capable of supporting multiple-axis proximity motion
detection. The Si1141/42/43-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
Si1141/42/43-M01
DNC 1
SDA 2
SCL 3
VDD 4
INT 5
10 LEDA
9 LED1
8 GND
7 LED3/CVDD
6 LED2/CVDD
Rev. 1.1 12/14
Copyright © 2014 by Silicon Laboratories
Si1141/42/43-M01



Si1143-M01
Si1141/42/43-M01
Functional Block Diagram
Si1143-M01
Si1143 Proximity/Ambient Light Sensor IC
VDD Regulator
LED1
Temp
Visible
A
M
U
X
ADC
Filter
LED
Drivers
LED3
LED2
INT
SCL
SDA
Infrared
I2C
Digital Sequencer & Control Logic
Registers
Oscillator
Notes:
1. Si1142-M01 and Si1143-M01 only. Must be tied to VDD with Si1141-M01.
2. Si1143-M01 only. Must be tied to VDD with Si1141-M01 and Si1142-M01.
Figure 1. Si1143-M01 Sensor Module
3.3 V
LEDA
LED1
LED32
LED21
GND
Host
SDA
SCL
INT
0.1 uF
SDA
SCL
VDD
INT
Si1141-M01
LED1
LED3
LED2
GND
LEDA
LED1
LED3
LED2
30 Ohm
5%, 1/16 W
22 µF, 20%, >6 V
Figure 2. Si1141-M01 Module Basic Application Schematic for 1 LED
3.3 V
VBAT
(3.3 to 4.3V)
Host
SDA
SCL
INT
0.1 uF
SDA
SCL
VDD
INT
Si1142-M01
LED1
LED3
LED2
GND
No 30 Ohm
Pop 5%, 1/16 W
LEDA
LED1
LED3
LED2
22 µF, 20%, >6 V
Figure 3. Si1142-M01 Module Application Schematic for Long-Range Proximity Detection
Note: For more application examples, refer to “AN498: Si114x Designer’s Guide”.
2 Rev. 1.1





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