VEML3328
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Vishay Semiconductors
RGBCIR Color Sensor With I2C Interface
FEATURES
• Package type: surface-mount
• Dimensions (L x W x H in mm): 2.0 x 1.25 x 1.0
• Integrated modules: color sensor and signal
conditioning IC
• Supports low transmittance (dark) lens design
• Provides 16-bit resolution for each channel
(R, G, B, C, and IR)
• Package: OPLGA4
• Temperature compensation: -40 °C to +85 °C
• Low power consumption I2C (SMBus compatible)
interface
ADDITIONAL RESOURCES
3D 3D
Design Tools
Related
Documents
3D Models
• Floor life: 168 h, MSL 3, according to J-STD-020
• Output type: I2C bus
Application
Notes
• Operation voltage: 2.6 V to 3.6 V
DESCRIPTION
VEML3328 sensor senses red, green, blue, clear, and IR
light by incorporating photodiodes, amplifiers, and analog /
digital circuits into a single CMOS chip. With this sensor, the
brightness and color temperature of a display backlight can
be adjusted based on the ambient light source, and it can
differentiate indoor from outdoor lighting environments.
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
• Automatic white balancing and color cast correction in
digital cameras
• Automatic LCD backlight adjustment
• Maintaining consistent true color and ideal brightness
levels on handheld displays as users move between
indoor and outdoor environments
• On / off light switching in industrial and consumer
applications
• Active monitoring of LED color output for IoT and smart
lighting
PRODUCT SUMMARY
PART NUMBER
VEML3328
Rev. 1.2, 07-Sep-2021
OPERATING
VOLTAGE RANGE
(V)
I2C BUS
VOLTAGE RANGE
(V)
PEAK SENSITIVITY
(nm)
OUTPUT CODE
2.6 to 3.6
1.7 to 3.6
590, 610, 560, 470, 825 (C, R, G, B, IR)
16 bit, I2C
Document Number: 84968
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ORDERING INFORMATION
ORDERING CODE
PACKAGING
VOLUME (1)
REMARKS
VEML3328
Tape and reel
MOQ: 2500 pcs
2.00 mm x 1.25 mm x 1.00 mm
Note
(1) MOQ: minimum order quantity
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
SYMBOL
MIN.
MAX.
Supply voltage
TEST CONDITION
VDD
0
4
UNIT
V
Operation temperature range
Tamb
-40
+85
°C
Storage temperature range
Tstg
-40
+85
°C
RECOMMENDED OPERATING CONDITIONS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
MIN.
MAX.
UNIT
Supply voltage
VDD
2.6
3.6
V
Operation temperature range
Tamb
-40
+85
°C
I2C bus operating frequency
f(I2CCLK)
10
400
kHz
PIN DESCRIPTIONS
PIN ASSIGNMENT
SYMBOL
TYPE
FUNCTION
1
GND
-
Power supply ground; all voltages are referenced to GND
2
SDA
I / O (open drain)
I2C digital bus data input / output
3
SCL
I
I2C digital bus clock input
4
VDD
-
Supply voltage
BLOCK DIAGRAM
VEML3328
GND 1
4 VDD
IR
C
B
G
R
Control logic
SDA 2
Rev. 1.2, 07-Sep-2021
Output buffer
I2C interface
3 SCL
Document Number: 84968
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BASIC CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
Supply voltage
VDD
2.6
3.0
3.6
V
Supply current (1)
IDD
500
580
1000
μA
Logic high
VIH
1.2
-
-
Logic low
VIL
-
-
0.4
λPC
-
590
-
λPR
-
610
-
λPG
-
560
-
I2C signal input (1)
TEST CONDITION
Peak sensitivity wavelength
Irradiance responsivity
Sensitivity
Dark offset
V
nm
λPB
-
470
λPIR
-
825
-
520 nm LED (1)(2)
C
-
57
-
850 nm LED (1)(2)
IR
-
25
-
643 nm LED (1)(2)
R
-
41
-
520 nm LED (1)(2)
G
-
39
-
460 nm LED (1)(2)
B
-
34
-
5000 K WLED (1)(3)
G
-
0.003
-
lx/count
R, G, B, C, IR
0
-
3
counts
Tamb
-40
-
+85
°C
IDD
0
800
1000
nA
(1)(3)
Operating temperature range
Shutdown current (1)
UNIT
Light condition = dark
counts/(μW/cm2)
Notes
(1) Test condition: V
DD = 3 V, temperature: 25 °C
(2) IT: 100 ms, SENS = (0) = x 1, DG = (0 : 0) = x 1, GAIN = (0 : 0) = x 1
(3) IT: 400 ms, SENS = (0) = x 1, DG = (1 : 0) = x 4, GAIN = (1 : 0) = x 4
Rev. 1.2, 07-Sep-2021
Document Number: 84968
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I2C BUS TIMING CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
STANDARD MODE
SYMBOL
MIN.
MAX.
f(I2CCLK)
10
t(BUF)
4.7
Hold time after (repeated) start condition;
after this period, the first clock is generated
t(HDSTA)
Repeated start condition setup time
FAST MODE
UNIT
MIN.
MAX.
100
10
400
kHz
-
1.3
-
μs
4.0
-
0.6
-
μs
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
I2C clock (SCK) low period
t(LOW)
4.7
-
1.3
-
μs
I2C clock (SCK) high period
Clock frequency
Bus free time between start and stop condition
t(HIGH)
4.0
-
0.6
-
μs
Clock / data fall time
tf
-
300
-
300
ns
Clock / data rise time
tr
-
1000
-
300
ns
t(LOW)
I2C bus
clock
(SLCK)
t(R)
t(F)
VIH
VIL
t(HDSTA)
t(HIGH)
t(SUSTA)
t(SUSTO)
t(BUF)
t(HDDAT)
I2C bus
data
(SDAT)
t(SUDAT)
VIH
Start
{
S
Start condition
{
P
Stop condition
{
{
VIL
S
P
Stop
t(LOSEXT)
SCLKACK
t(LOWMEXT)
SDAACK
t(LOWMEXT)
t(LOWMEXT)
I2C bus
clock
(SLCK)
I2C bus
data
(SDAT)
Fig. 1 - I2C Bus Timing Diagram
Rev. 1.2, 07-Sep-2021
Document Number: 84968
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PARAMETER TIMING INFORMATION
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA7
W
SA6
SA5
SA4
SA3
SA2
SA1
SA0
ACK by
VEML3328
Start by
master
ACK by
VEML3328
I2C bus slave address byte
Command code
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
SA6
SA7
SA5
SA4
SA3
SA2
SA1
SA0
ACK by Stop by
VEML3328 master
ACK by
VEML3328
Data byte low
Data byte high
Fig. 2 - I2C Bus Timing for Sending Word Command Format
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA7
W
SA6
SA5
SA4
SA3
SA2
SA1
SA0
ACK by
VEML3328
Start by
master
I2C
ACK by
VEML3328
bus slave address byte
Command code
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
SA7
SA6
SA5
SA4
SA3
SA2
R
SA1
SA7
SA6
SA5
SA4
SA3
ACK by
VEML3328
Start by
master
2C
I
SA2
SA1
SA0
ACK by
master
bus slave address byte
Data byte low
I2C bus
clock
(SCLK)
I2C bus
data
(SDAT)
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
NACK by
master
Stop by
master
Data byte high
Fig. 3 - I2C Bus Timing for Receiving Word Command Format
Rev. 1.2, 07-Sep-2021
Document Number: 84968
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TYPICAL PERFORMANCE CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
Axis Title
1.0
10000
C
0.8
0.7
1000
0.6
1st line
2nd line
2nd line
Normalized Responsivity
0.9
0.5
Green
0.4
Blue
Red
IR
100
0.3
0.2
0.1
10
0
380
480
580
680
780
880
980
Wavelength (nm)
Fig. 4 - Normalized Responsivity vs. Wavelength
Fig. 5 - Normalized Responsivity vs. Angular Displacement
APPLICATION INFORMATION
Pin Connection With the Host
The VEML3328 is a cost effective solution color and IR sensor with an I2C interface. All possible settings and result data can be
accessed via the standard I2C interface.
A typical application circuit is shown in Fig. 6 below. The additional 0.1 μF capacitor near the VDD pin in the circuit is used for
power supply noise rejection. Pull-up resistors for the I2C bus design are recommended to be 2.2 kΩ.
1.7 V to 3.6 V
R1
Host
micro controller
R2
VEML3328
2.6 V to 3.6 V
C1
VDD (4)
100 nF
SDA (2)
I2C bus data SDA
SCL (3)
I2C bus clock SCL
GND (1)
Fig. 6 - Hardware Pin Connection Diagram (Slave Address 0x10)
Digital Interface
The VEML3328 contains a command register accessible via the I2C bus. All settings can be controlled via this register. The
VEML3328’s I2C command format description for read and write operations between VEML3328 and the host is shown
in Fig. 7. The white areas indicate the host activity and the gray areas indicate VEML3328’s acknowledgement of the host
access activity. Note that this protocol must be followed exactly to avoid false communication on the bus. Special care should
be taken for the “Read Word” format, as here a repeated start condition is a must, as indicated.
Send word o write command to VEML3328
1
7
1
1
8
1
8
1
8
1
1
S
Slave address
Wr
A
Command code
A
Data byte low
A
Data byte high
A
P
Receive word o read data from VEML3328
1
7
1
1
8
1
1
7
1
1
8
1
8
1
1
S
Slave address
Wr
A
Command code
A
S
Slave address
Rd
A
Data byte low
A
Data byte high
N
P
S = start condition
P = stop condition
A = acknowledge
N = not acknowledge
Host action
VEML3328 acknowledge
Fig. 7 - Command Protocol Format
Rev. 1.2, 07-Sep-2021
Document Number: 84968
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Command Register Format
VEML3328 uses 0x10 slave address for 7-bit I2C addressing protocol. VEML3328 has 16-bit resolution for each channel
(R, G, B, C, and IR).
TABLE 1 - COMMAND CODE DESCRIPTION
COMMAND CODE
0x00
REGISTER NAME
BIT
FUNCTION DESCRIPTION
SD1
15
Shutdown setting (1)
SD1 = 0 power on; SD1 = 1 shutdown (default)
SD_ALS only
14
0 = power on all channels (default)
1 = power on G, C, and IR (R, B shutdown)
DG
13 : 12
(0 : 0) = x 1 (default)
(0 : 1) = x 2
(1 : 0) = x 4
(1 : 1) = reserved
GAIN
11 : 10
(1 : 1) = x 1/2
(0 : 0) = x 1 (default)
(0 : 1) = x 2
(1 : 0) = x 4
Reserved
9:8
Reserved
7
Set 0
SENS
6
0 = high sensitivity (default); 1 = low sensitivity (1/3)
R/W
Set (0 : 0)
R/W
Integration time setting
(0 : 0) = 50 ms (default)
(0 : 1) = 100 ms
(1 : 0) = 200 ms
(1 : 1) = 400 ms
IT
5:4
AF
3
Auto / active force mode
0 = auto mode (default); 1 = active force mode
TRIG
2
Trigger a single measurement when in active force mode. This bit
resets to “0” automatically when the measurement cycle is complete.
0 = no trigger (default); 1 = trigger one measurement cycle
Reserved
1
Set 0
SD0
0
Shutdown setting (1)
SD0 = 0 power on; SD0 = 1 shutdown (default)
Note
(1) For power on, both SD0 and SD1 have to be set to 0. For shutdown, both SD0 and SD1 have to be set to 1
TABLE 2 - DATA REGISTERS
COMMAND
CODE
REGISTER NAME
0x04
0x05
0x06
0x07
0x08
0x0C
DATE BYTE
LOW / HIGH
BIT
FUNCTION DESCRIPTION
C_LSB
Low
7:0
Clear channel LSB data
C_MSB
High
7:0
Clear channel MSB data
R_LSB
Low
7:0
Red channel LSB data
R_MSB
High
7:0
Red channel MSB data
G_LSB
Low
7:0
Green channel LSB data
G_MSB
High
7:0
Green channel MSB data
B_LSB
Low
7:0
Blue channel LSB data
B_MSB
High
7:0
Blue channel MSB data
Infrared channel LSB data
IR_LSB
Low
7:0
IR_MSB
High
7:0
Infrared channel MSB data
ID_L
Low
7:0
Device ID 0x28
Reserved
High
7:0
R/W
R
Note
• Command codes 0x01 to 0x03 and 0x09 to 0x0B are reserved
Rev. 1.2, 07-Sep-2021
Document Number: 84968
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Data Access
Each of the C, R, G, B, and IR result registers has a 16-bit resolution (2 bytes). One byte is the LSB and the other byte is the MSB.
The host needs to follow the read word protocol as shown in Fig. 7. The data format shows as below.
TABLE 3 - 16-BIT DATA FORMAT
VEML3328 16-BIT DATA FORMAT
Data bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Data byte low
Data byte high
Note
Slave address
S
Wr
A
Command code
A
S
Slave address
Rd
A
Data byte low
Data byte high
A
N
P
• Data byte low represents LSB and data byte high represents MSB
PACKAGE INFORMATION in millimeters
2.00 ± 0.1
2.00 ± 0.1
1.00 ± 0.05
0.35
1
0.25
0.70
4
0.425
X
X
3
0.525
2
1.0
0.425
0.025
1 ± 0.10
0.56
0.45
Die
0.2
30 μm ± 10 μm
Side view
3
1.10
0.1
0.36
2
1.25 ± 0.1
X
0.625 ± 0.05
X
0.35
4
Active area
0.29
1.25 ± 0.1
1
0.425
0.35
Top view
0.1
Fig. 8 - VEML3328A3OG Package Dimensions
Rev. 1.2, 07-Sep-2021
Document Number: 84968
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Recommended footprint
0.1
1
4
2
3
0.7
0.35
Package edge to edge
2 ± 0.15
0.5
0.6
0.4
Fig. 9 - VEML3328A3OG PCB Layout Footprint
RECOMMENDED STORAGE AND REBAKING CONDITIONS
PARAMETER
Storage temperature
Relative humidity
Open time
Total time
Rebaking
Rev. 1.2, 07-Sep-2021
CONDITIONS
From the date code on the aluminized envelope (unopened)
Tape and reel: 60 °C
Tube: 60 °C
MIN.
5
-
MAX.
50
60
168
12
22
22
UNIT
°C
%
h
months
h
Document Number: 84968
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RECOMMENDED INFRARED REFLOW
Soldering conditions which are based on J-STD-020 C
IR REFLOW PROFILE CONDITION
PARAMETER
CONDITIONS
TEMPERATURE
TIME
255 °C + 0 °C / - 5 °C (max.: 260 °C)
10 s
Preheat temperature range and timing
150 °C to 200 °C
60 s to 180 s
Timing within 5 °C to peak temperature
-
10 s to 30 s
217 °C
60 s to 150 s
-
8 min (max.)
Peak temperature
Timing maintained above temperature / time
Timing from 25 °C to peak temperature
Ramp-up rate
3 °C/s (max.)
-
Ramp-down rate
6 °C/s (max.)
-
Temperature (°C)
Recommend Normal Solder Reflow is 235 °C to 255 °C
Max. temperature
260 °C + 0 °C / - 5 °C/10 s
255
200
150
Ramp-down rate
6 °C/s (max.)
Ramp-up rate
3 °C/s (max.)
217
Soldering zone
60 s to 150 s
Ramp-up rate
3 °C/s (max.)
Pre-heating time
t2 - t1 = 60 s to 180 s
t1
t2
Time (s)
Fig. 10 - VEML3328 OPLGA Solder Reflow Profile Chart
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. 1.2, 07-Sep-2021
Document Number: 84968
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TAPE PACKAGING INFORMATION in millimeters
0.25 ± 0.02
Taping direction
Top view
4.00 ± 0.10
2.00 ± 0.05
Ø 1.50 ± 0.10
1.47 ± 10
8° max.
1.18 ± 0.10
12.00
+0.30
-0.10
5.50 ± 0.05
4.00 ± 0.10
1.75 ± 0.10
Side view
Pin 1
Ø 1.00 ± 0.05
8° max.
2.22 ± 0.10
Fig. 11 - VEML3328 A3OG Package Carrier Tape
Fig. 12 - Reel Dimensions
Rev. 1.2, 07-Sep-2021
Document Number: 84968
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Legal Disclaimer Notice
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Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
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Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product
with the properties described in the product specification is suitable for use in a particular application. Parameters provided in
datasheets and / or specifications may vary in different applications and performance may vary over time. All operating
parameters, including typical parameters, must be validated for each customer application by the customer's technical experts.
Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited
to the warranty expressed therein.
Hyperlinks included in this datasheet may direct users to third-party websites. These links are provided as a convenience and
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Revision: 01-Jan-2022
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Document Number: 91000
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