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Teilenummer | VL6180X |
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Beschreibung | Proximity and ambient light sensing (ALS) module | |
Hersteller | STMicroelectronics | |
Logo | ||
Gesamt 30 Seiten VL6180X
Proximity and ambient light sensing (ALS) module
Features
• Three-in-one smart optical module
– Proximity sensor
– Ambient Light Sensor
– VCSEL light source
• Fast, accurate distance ranging
– Measures absolute range from 0 to above
10 cm
– Independent of object reflectance
– Ambient rejection
– Crosstalk compensation for cover glass
– Ranging beyond 100mm is possible with
certain target reflectances and ambient
conditions but not guaranteed
• Gesture recognition
– Distance and signal level can be used by
host system to implement gesture
recognition
– Demo systems available.
• Ambient light sensor
– High dynamic range
– Accurate/sensitive in ultra-low light
– Calibrated output value in lux
• Easy integration
– Single reflowable component
– No additional optics or gasket
– Single power supply
– I2C interface for device control and data
Datasheet - production data
• Two programmable GPIO
– Window and thresholding functions for both
ranging and ALS
Description
The VL6180X is the latest product based on ST’s
patented FlightSense™ technology. This is a
ground-breaking technology allowing absolute
distance to be measured independent of target
reflectance. Instead of estimating the distance by
measuring the amount of light reflected back from
the object (which is significantly influenced by
color and surface), the VL6180X precisely
measures the time the light takes to travel to the
nearest object and reflect back to the sensor
(Time-of-Flight).
Combining an IR emitter, a range sensor and an
ambient light sensor in a three-in-one ready-to-
use reflowable package, the VL6180X is easy to
integrate and saves the end-product maker long
and costly optical and mechanical design
optimizations.
The module is designed for ultra low power
operation. Ranging and ALS measurements can
be automatically performed at user defined
intervals. Multiple threshold and interrupt
schemes are supported to minimize host
operations.
Host control and result reading is performed using
an I2C interface. Optional additional functions,
such as measurement ready and threshold
interrupts, are provided by two programmable
GPIO pins.
Applications
• Smartphones/portable touchscreen devices
• Tablet/laptop/gaming devices
• Domestic appliances/industrial devices
August 2014
This is information on a product in full production.
DocID026171 Rev 6
1/79
www.st.com
List of tables
List of tables
VL6180X
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Technical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
VL6180X pin numbers and signal descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Recommended reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power-up timing constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Interleaved mode limits (10 Hz operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Typical range convergence time (ms). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Range error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
History buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Typical current consumption in different operating states . . . . . . . . . . . . . . . . . . . . . . . . . 24
Breakdown of current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Current consumption on AVDD and AVDD_VCSEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
ALS dynamic range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Actual gain values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Normal operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Digital I/O electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Ranging specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Worst case max range vs. ambient 0 to 100mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
ALS performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Register groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
32-bit register example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.7 and 4.4 register formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Register summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Delivery format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Storage conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6/79 DocID026171 Rev 6
6 Page Functional description
2 Functional description
VL6180X
This section gives an overview of the key features of the VL6180X and describes the
different modes of operation of the ALS and proximity sensors.
Typical ranging performance of the VL6180X is shown in Figure 6. This demonstrates the
reflectance independence and range accuracy of the VL6180X from 0 to 100 mm for 3%,
5%, 17% and 88% reflective targets. The example shown here is with ST cover glass and a
1.0 mm air gap.
Figure 7 shows typical ALS linearity vs gain over a wide dynamic range. More details about
the ambient light sensor can be found in Section 2.13.
Figure 6. Typical ranging performance
12/79
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Figure 7. ALS linearity
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DocID026171 Rev 6
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ VL6180X Schematic.PDF ] |
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