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VEML6070

P1-P3P4-P6P7-P9P10-P12P13-P13
VEML6070
www.vishay.com
Vishay Semiconductors
Rev. 1.7, 05-Dec-16
1
Document Number: 84277
For technical questions, contact: sensorstechsupport@vishay.com
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
UVA Light Sensor with I
2
C Interface
DESCRIPTION
VEML6070 is an advanced ultraviolet (UV) light sensor with
I
2
C protocol interface and designed by the CMOS process.
It is easily operated via a simple I
2
C 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 Filtron
TM
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 Filtron
TM
technology
• Excellent performance of UV radiation
measurement under long time solar UV exposure
• Excellent temperature compensation
• High dynamic detection resolution
•Standard I
2
C 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: I
2
C 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
Note
(1)
Adjustable through I
2
C interface
Note
(1)
MOQ: minimum order quantity
PRODUCT SUMMARY
PART NUMBER
OPERATING
VOLTAGE RANGE
(V)
I
2
C BUS
VOLTAGE RANGE
(V)
PEAK SENSITIVITY
(nm)
RANGE OF SPECTRAL
BANDWIDTH λ
0.5
(nm)
OUTPUT CODE
VEML6070 2.7 to 5.5 1.7 to 5.5 355 ± 20 16 bit, I
2
C
ORDERING INFORMATION
ORDERING CODE PACKAGING VOLUME
(1)
REMARKS
VEML6070 Tape and reel MOQ: 2500 pcs 2.35 mm x 1.8 mm x 1.0 mm
ABSOLUTE MAXIMUM RATINGS (T
amb
= 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. MAX. UNIT
Supply voltage V
DD
06.0V
Operation temperature range T
amb
-40 +85 °C
VEML6070
www.vishay.com
Vishay Semiconductors
Rev. 1.7, 05-Dec-16
2
Document Number: 84277
For technical questions, contact: sensorstechsupport@vishay.com
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
BLOCK DIAGRAM
Notes
(1)
Test condition: V
DD
= 3.3 V, temperature: 25°C
(2)
Light source: solar light source
(3)
Test using 365 nm UVA LED
(4)
Ambient light intensity = 500 lx
RECOMMENDED OPERATING CONDITIONS (T
amb
= 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. MAX. UNIT
Supply voltage V
DD
2.7 5.5 V
Operation temperature range T
amb
-40 +85 °C
I
2
C bus operating frequency f
(I2CCLK)
10 400 kHz
PIN DESCRIPTIONS
PIN ASSIGNMENT SYMBOL TYPE FUNCTION
1 GND I Power supply ground, all voltage are reference to GND
2 ACK O (open drain) Acknowledge pin
3 SDA I / O (open drain) I
2
C digital serial data output to the host
4 RSET Light reading adjustment, connect a resistor to GND
5SCLII
2
C digital serial clock input from the host
6V
DD
I Supply voltage
BASIC CHARACTERISTICS (T
amb
= 25 °C, unless otherwise specified)
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Supply operation voltage V
DD
2.7 - 5.5 V
Supply current R
SET
= 240 kΩ
(1)(2)
I
DD
- 100 250 μA
I
2
C signal input
Logic high
(1)(2)
V
IH
1.5 - V
DD
V
Logic low V
IL
--0.8
Peak sensitivity wavelength λ
p
- 355 - nm
Range of spectral sensitivity λ
0.1
320 - 410 nm
UVA sensitivity R
SET
= 240 kΩ, IT = 1T
(3)
-5-μW/cm
2
/step
Maximum UVA detection power R
SET
= 240 kΩ, IT = 1T
(3)
- - 328 mW/cm
2
Dark offset R
SET
= 240 kΩ, IT = 1T
(3)
015steps
Output offset R
SET
= 240 kΩ, IT = 1T
(1)(4)
-2-steps
Shutdown current Light condition = dark
(1)
I
DD
- 1 15 μA
1
2
3
V
DD
SCLACK
SDA
6
5
4
GND
RSET
UV-PD
VEML6070
Output buffer
I
2
C interface
Low pass
lter
Temperature
sensor
Oscillator
Timing
controller
VEML6070
www.vishay.com
Vishay Semiconductors
Rev. 1.7, 05-Dec-16
3
Document Number: 84277
For technical questions, contact: sensorstechsupport@vishay.com
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
Fig. 1 - I
2
C Timing Diagram
I
2
C TIMING CHARACTERISTICS (T
amb
= 25 °C, unless otherwise specified)
PARAMETER SYMBOL
STANDARD MODE FAST MODE
UNIT
MIN. MAX. MIN. MAX.
Clock frequency f
(SMBCLK)
10 100 10 400 kHz
Bus free time between start and stop condition t
(BUF)
4.7 - 1.3 - μs
Hold time after (repeated) start condition;
after this period, the first clock is generated
t
(HDSTA)
4.0 - 0.6 - μs
Repeated start condition setup time t
(SUSTA)
4.7 - 0.6 - μs
Stop condition setup time t
(SUSTO)
4.0 - 0.6 - μs
Data hold time t
(HDDAT)
3450 - 900 ns
Data setup time t
(SUDAT)
250 - 100 - ns
I
2
C clock (SCK) low period t
(LOW)
4.7 - 1.3 - μs
I
2
C clock (SCK) high period t
(HIGH)
4.0 - 0.6 - μs
Detect clock / data low timeout t
(TIMEOUT)
25 35 - - ms
Clock / data fall time t
(F)
- 300 - 300 ns
Clock / data rise time t
(R)
- 1000 - 300 ns
I
2
C Bus
CLOCK
(SCL)
I
2
C Bus
DATA
(SDA)
V
IH
V
IH
t
(LOW)
V
IL
t
(R)
t
(HDSTA)
t
(BUF)
V
IL
t
(HDDAT
)
t
(F)
t
(HIGH)
t
(SUSTA)
t
(SUDAT
)
t
(SUSTO)
{
{
P
Stop Condition
S
Start Condition
{
{
PS
t
(LOSEXT)
t
(LOWMEXT)
t
(LOWMEXT)
SCL
ACK
SDA
ACK
Start Stop
t
(LOWMEXT
)
I
2
C Bus
CLOCK
(SCL)
I
2
C Bus
DATA
(SDA)
P1-P3P4-P6P7-P9P10-P12P13-P13

VEML6070

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Description:
Optical Sensors Photo IC Sensors UV Light Sensor I2C Infce 16-bit
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