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PDF VEML6070 Data sheet ( Hoja de datos )
| Número de pieza | VEML6070 | |
| Descripción | UVA Light Sensor | |
| Fabricantes | Vishay | |
| Logotipo |  |
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www.vishay.com
VEML6070
Vishay Semiconductors
UVA Light Sensor with I2C Interface
DESCRIPTION
VEML6070 is an advanced ultraviolet (UV) light sensor with
I2C protocol interface and designed by the CMOS process.
It is easily operated via a simple I2C command. The active
acknowledge (ACK) feature with threshold windows setting
allows the UV sensor to send out a UVI alert message.
Under a strong solar UVI condition, the smart ACK signal
can be easily implemented by the software programming.
VEML6070 incorporates a photodiode, amplifiers, and
analog / digital circuits into a single chip. VEML6070’s
adoption of FiltronTM UV technology provides the best
spectral sensitivity to cover UV spectrum sensing. It has an
excellent temperature compensation and a robust refresh
rate setting that does not use an external RC low pass filter.
VEML6070 has linear sensitivity to solar UV light and is
easily adjusted by an external resistor. Software shutdown
mode is provided, which reduces power consumption to be
less than 1 μA. VEML6070’s operating voltage ranges from
2.7 V to 5.5 V.
FEATURES
• Package type: surface mount
• Dimensions (L x W x H in mm): 2.35 x 1.8 x 1.0
• Integrated modules: ultraviolet sensor (UV), and
signal conditioning IC
• Converts solar UV light intensity to digital data
• Excellent UV sensitivity and linearity via FiltronTM
technology
• Excellent performance of UV radiation
measurement under long time solar UV exposure
• Excellent temperature compensation
• High dynamic detection resolution
• Standard I2C protocol interface
• Support acknowledge feature (ACK)
• Immunity on fluorescent light flicker software shutdown
mode control
• Package: OPLGA
• Temperature compensation: -40 °C to +85 °C
• Floor life: 168 h, MSL 3, according to J-STD-020
• Output type: I2C bus
• Operation voltage: 2.7 V to 5.5 V
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Solar UV indicator
• Cosmetic / outdoor sport handheld product
• Consumer products
PRODUCT SUMMARY
PART NUMBER
OPERATING
VOLTAGE RANGE
(V)
VEML6070
2.7 to 5.5
Note
(1) Adjustable through I2C interface
I2C BUS
VOLTAGE RANGE
(V)
1.7 to 5.5
PEAK SENSITIVITY
(nm)
355
RANGE OF SPECTRAL
BANDWIDTH λ0.5
(nm)
± 20
OUTPUT CODE
16 bit, I2C
ORDERING INFORMATION
ORDERING CODE
VEML6070
Note
(1) MOQ: minimum order quantity
PACKAGING
Tape and reel
VOLUME (1)
MOQ: 2500 pcs
REMARKS
2.35 mm x 1.8 mm x 1.0 mm
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
MIN.
Supply voltage
Operation temperature range
VDD
Tamb
0
-40
MAX.
6.0
+85
UNIT
V
°C
Rev. 1.7, 05-Dec-16
1 Document Number: 84277
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
1 page  
www.vishay.com
VEML6070
Vishay Semiconductors
Temperature vs. IDD
125
115
105
95
85
75
10 20 30 40 50 60 70 80 90 100 110
Temperature
500
475
450
425
400
375
350
325
300
275
250
225
200
175
150
125
100
75
50
25
0
CM 3512 Refresh Time
Rset (Kohm)
Fig. 6 - IDD vs.Temperature
Fig. 7 - Refresh Time
APPLICATION INFORMATION
Pin Connection with the Host
VEML6070 is a cost effective solution for ultraviolet light sensing with I2C interface. The standard serial digital interface easily
accesses “UV light intensity” digital data.
The additional capacitor near the VDD pin is used for power supply noise rejection. For the I2C bus design, the pull-up voltage
refers to the I/O of the baseband due to the “open drain” design. The pull-up resistors for the I2C bus design are recommended
to be 2.2 kΩ. The circuit diagram as an example is shown in figure 8.
1.7 V to 5.5 V
R1 R2 R3
2.7 V to 5.5 V
GND (1)
R4
10R
C1 C2
VDD (6)
10 μF
100 nF
VEML6070
C1 and R4
are optional
for very
disturbed
supply
R5
270K
RSET (4)
SDA (3)
SCL (5)
ACK (2)
Fig. 8 - Hardware Pin Connection Diagram
Host
Micro Controller
I2C Bus Data SDA
I2C Bus Clock SCL
GPIO (INT)
Rev. 1.7, 05-Dec-16
5 Document Number: 84277
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
5 Page 
www.vishay.com
255
217
VEML6070
Vishay Semiconductors
Max. Temperature
(260 °C + 5 °C / - 5 °C)/10 s
Ramp-Up Rate
3 °C/s (max.)
Ramp-Down Rate
6 °C/s (max.)
200
Ramp-Up Rate
150 3 °C/s (max.)
Pre-Heating Time
t2 - t1 = 60 s to 180 s
Soldering Zone
60 s to 150 s
t1 t2
Fig. 14 - VEML6070 A3OP Solder Reflow Profile Chart
Time (s)
RECOMMENDED IRON TIP SOLDERING CONDITION AND WARNING HANDLING
1. Solder the device with the following conditions:
1.1. Soldering temperature: 400 °C (max.)
1.2. Soldering time: 3 s (max.)
2. If the temperature of the method portion rises in addition to the residual stress between the leads, the possibility that an
open or short circuit occurs due to the deformation or destruction of the resin increases.
3. The following methods: VPS and wave soldering, have not been suggested for the component assembly.
4. Cleaning method conditions:
4.1. Solvent: methyl alcohol, ethyl alcohol, isopropyl alcohol
4.2. Solvent temperature < 45 °C (max.)
4.3. Time: 3 min (min.)
Rev. 1.7, 05-Dec-16
11 Document Number: 84277
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet VEML6070.PDF ] | |
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