PROXIMITY/UV/AMBIENT LIGHT SENSOR MODULE - Silicon Laboratories
Description
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 s...
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