57F6860E ColorSensor ss(EN)

New Product Bulletin
Compact Digital Color Sensor IC
BH1745NUC
Provides high-precision operation and superior
spectral sensitivity characteristics in a compact
form factor
Product Outline
The BH1745NUC I2C-compatible digital color sensor is designed to detect the color components (RGB) in light and
convert them digitally. Superior spectral sensitivity, achieved through optimum infrared cutoff characteristics and
original optical technology, makes it possible to calculate the color temperature and brightness with a high degree
of accuracy - even through low-transmittance optical windows - contributing to greater design freedom.
WSON008X2120
(2.0x2.1mm, t=0.6mm max.)
■ Proprietary optical filter technology ensures excellent spectral sensitivity
ADC
ADC
VCC
100
SDA
ADC Logic
+
PC Interface
+
INT Interface
SCL
ADDR
INT
TEST
OSC
POR
Transmittance (%)
ADC
Standard Color Sensor
B G
R
100
Infrared Region
80
60
Significant
Noise
40
20
Transmittance (%)
GREEN BLUE
ADC
RED
Spectral Sensitivity Characteristics
CLEAR
L gh
ght
Light
Infrared Cutoff Filter
Block Diagram
ROHM’s New Color Sensor
B
G
R
Infrared Region
80
60
40
Low Noise
20
GND
Key Characteristics
• Supply Voltage Range: 2.3 to 3.6V
• Max. Sensitivity: 0.005 lx/step
• Operating Current Consumption: 130μA (Typ.)
• Power Down Current Consumption: 0.8μA (Typ.)
• Operating Temperature Range: -40 to +85°C
0
400
500
600
700
800 900 1000 1100
Wavelength (nm)
0
400
500
600
700
800 900 1000 1100
Wavelength (nm)
Infrared cutoff filter and original optical technology provide superior infrared removal performance
■ Broad applicability
Application Examples
Brightness/color adjustment
Improved design flexibility
Detects ambient light conditions and
automatically adjusts the color and
brightness in LCDs for optimum results
Provides greater design freedom for the
optical windows in tablets and smartphones
Process control in industrial applications
Standard Color Sensor
ROHM’s New High
Accuracy Color Sensor
Limited to high transmittance
optical windows
Compatible with even low
transmittance optical windows
16th December,2014.
.57F6860E 12.2014
Determine the colors of products and liquids in
production lines
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